Planets (List)

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Galaxy Portal Planets

A list of known worlds in the Galaxy:

List

Planet Name	Planet Type	Segmentum	Notes	Source
108/Beta-Kalapus-9.2	Adeptus Astartes Homeworld		Homeworld of the Wolfspear	Dark Imperium (Novel), chs. 6, 10, 15
42 Hydra Tertius			Also known as Eolith.	Legion (Novel), Part 2, ch. 2
47 Kapella	War World	Obscurus	Calixis Sector / Drusus Marches	Dark Heresy Core Rulebook, pg. 288
8-Rho-krame	Armoury World		Abandoned, overtaken by Orks	White Dwarf 498, pg. 38
88 Tanstar	Frontier World	Obscurus	Calixis Sector / Drusus Marches	Dark Heresy Core Rulebook, pg. 288
A1709	Research Station			Warhammer 40,000 3rd Edition Rulebook, pg. 115
Abandoned Hope	Forbidden World	Obscurus	Calixis Sector / Josian Reach. A world cut off by the Inquisition; all access is denied.	Dark Heresy Core Rulebook, pg. 289
Abheilüng	Forge World	Solar	Dark Mechanicum Forge World	Codex: Chaos Space Marines (6th Edition), pg. 25
Abramis VII				Shield of Baal: Exterminatus — Sisters of the Saint
Absolom Reach	Daemon World		Former Hive World, former Desert World	White Dwarf 369 (UK), pg. 54
Accatran	Forge World	Ultima		Imperial Armour Volume One - Imperial Guard and Imperial Navy, pg. 8
Acheron IV	War World, Forge World			White Dwarf 382 (UK), pg. 84
Acanon		Solar	Homeworld of the Emperor's Blades Death Cult	White Dwarf 261 (UK) pg. 64
Acralem		Ultima	The location of a daemonic incursion led by M'kar the Reborn in 799.M41	Codex: Grey Knights (5th Edition), pg. 38
Acreage	Feudal World	Obscurus	Calixis Sector / Josian Reach	Dark Heresy Core Rulebook, pg. 289
Actium	Jungle World			Soul Drinker (Novel), Chapter Seven
Adacore	Mining World		Site of the Adacore Extermination	Codex: Space Marines (6th Edition), pg. 70
Adrantis Five	Dead World	Pacificus		Codex: Imperial Guard (2nd Edition), pg. 32
Adumbria	Civilised World		Tidally locked, one hemisphere is desert and the other ice.	The Traitor's Hand (Novel) - Ciaphas Cain: Hero of the Imperium (Omnibus), Editorial Note after Chapter 1, pgs. 511–512
Adun			"Shadow World"	Imperial Armour Volume One - Imperial Guard and Imperial Navy, pg. 19
Ae	Forest World			Mechanicum (Novel), 2.07
Aerius	Hive World			Ragnar's Claw (Novel)[Help]
Aeteria			Oqueth Sector	Meduson (Short Story)
Aggaros	Feral World	Obscurus		Codex: Chaos Space Marines (6th Edition), pg. 22; Black Legion - A Codex: Chaos Space Marines Supplement (6th Edition), pg. 20
Aggenon	Shrine World (former)		Invaded by Aeldari in M41	Codex: Craftworlds (8th Edition), pg. 27 — The Doom of the Aeldari: The Confluence of Fate
Aggreon				The Purging of Kadillus (Novel), The Tale of Belial - Counter-attack
Aghoru				A Thousand Sons (Novel), ch. 1
Agraria XIII				Gathering Storm: Fracture of Biel-Tan, ch. 2, pg. 53, Empire of Ash - Intervox Mechanicus
Agripinaa	Forge World	Obscurus		Imperial Armour Volume One - Imperial Guard and Imperial Navy, pg. 8
Aipolodon IV	Agri World			White Dwarf 481, pg. 10
Aktosha	Daemon World / Crone World	Obscurus / Eye of Terror		Codex: Craftworlds (7th Edition) (e-book), Craftworld Eldar [Help]
Alactra	Hive World	Obscurus	Calixis Sector, Malfian Sub-sector	Dark Heresy Core Rulebook, pg. 288
Alantor X			The place of destruction of the Angels of Retribution Space Marines Chapter	Dataslate: Officio Assassinorum, pg. 9
Al-Arach				Codex: Imperial Guard (3rd Edition, 1st Codex), pg. 28
Al-Zahara				Servant of the Righteous (Short Story) — The Vorbis Conspiracy (Anthology)
Alayran	Maiden World			Dataslate: Eldar Ghost Warriors (Background Book) — Timeline — An Anticipated Atrocity
Albert IV	Forge World			Adeptus Titanicus (game) Rulebook, pg. 43
Albitern		Obscurus	Above this planet the Howling Griffons' First Company banished the Daemon Prince Periclitor.	Cadia Stands (Novel), Part 5: Chapter 2
Alcatran	Hive World			Codex: Imperial Guard (5th Edition), pg. 8 — Recruitment
Aldarast				The Beast Must Die (Novel), Chapter 9
Alena-Mora			Homeworld of Inquisitor Ivixia Dannica	The Inquisition (Background Book), pg. 25 - Ivixia Dannica
Alexandrus	Feudal World			White Dwarf 481, pg. 13
Alfrost	Death World	Ultima	Site of heavy fighting between the Space Wolves and the Prophets of War during the Crusade of Fire.	Crusade of Fire (Campaign Book), pgs. 21–25
Algol	Hive World			Hard Choices 'What happened on Algol?' [Help]
Algol Nine				White Dwarf 246 (UK), pg. 87
Almarit	Daemon World / Fortress World (former) / Shrine World (former)			Codex: Khorne Daemonkin (7th Edition), pg. 21
Alpha Shalish	Dead World	Solar		Warhammer 40,000 6th Edition Rulebook, pg. 199
Alpha Shalish	Dead World	Solar		Warhammer 40,000 6th Edition Rulebook, pg. 199
Alphex				Missing in Action (Short Story)
Altair VII				Warhammer 40,000 3rd Edition Rulebook, pg. 114
Altaneum	Ocean World			Fulgrim (Novel), Chapter 13
Altarak			Site of an ambush led by Khârn the Betrayer, against the Warband of the Chaos Space Marine Zarghan Ironfist	Farseer (Novel), ch. 15
Altid 156			Site of the Altid Crusade	Codex: Dark Angels (4th Edition), pg. 19
Alveare	Hive World			Warhammer World Event - Investigation on Glomus
Alyandu	Maiden World			Codex: Craftworlds (8th Edition), pg. 68
Amar				Codex: Space Marines (5th Edition), pg. 49 - Famous Battles
Amarah Prime	Hive World	Tempestus	Battle of Amarah	Imperial Armour Volume Twelve - The Fall of Orpheus, pg. 58
Ambold Eleven		Pacificus	Sabbat Worlds / Newfound Trailing Group Occupied by the forces of Chaos; conquered during the Sabbat Worlds Crusade.	The Sabbat Worlds Crusade (Background Book), pgs. 24-25
Amerigo Secundus			Home of the Wolverine Regiment Imperial Guard.	Codex: Imperial Guard (3rd Edition, 1st Codex), pg. 29
Amistel			Home to the Amistel 24th Cavalry Regiment Imperial Guard.	The 13th Black Crusade (Background Book), pg. 7
Amistel Majoris	Civilized World	Obscurus		The 13th Black Crusade (Background Book), pg. 23
Ammunheim	Forge World			Codex: Tyranids (8th Edition), pg. 17 — The First Tyrannic War: The Lure
Amun'an Morrus	Dead World	Obscurus	During the Angevin Crusade, Amun'an Morrus' once-human machine population was judged too tainted to exist and was infamously destroyed by Exterminatus.	Dark Heresy Timeline, pg. 2
Anark Zeta	Ogryn World			Codex: Imperial Guard (3rd Edition, 1st Codex), pg. 28
Anathrax	Daemon World	Obscurus	Eye of Terror. On this planet two Space Marines Chapters were corrupted - the Iron Drakes (became the Grey Death) and the Argent Hammers (became the Talons of Anathrax).	Codex: Chaos Space Marines (6th Edition), pgs. 18–19
Ancarin		Tempestus	Inwit Cluster	Praetorian of Dorn (Novel), Part Two, Chapter Three
Andromeda				Cadia Stands (Novel), Part 1: Chapter 2
Andronicus Prime	Dead World	Ultima		Deathwatch Timeline, pg. 5
Anemae Gulfward		Obscurus		The Inquisition (Background Book), pg. 7
Anetarbraxus	Dead World / Forge World (former)			The Horus Heresy Book Seven - Inferno, pg. 294
Angelus Minor				Assault on Angelus Minor
Anshur	Former Hive World, present status unknown			Apocalypse (2013), pg. 69
Antasic IX	Forge World			Ravenlord (Novella), Chapter Eight
Antax	Forge World	Ultima	Site of the Battle for Antax	Codex: Blood Angels (5th Edition), pgs. 20–21
Antecanis IV			Site of the Antecanis Massacre	Codex: Chaos Space Marines (3rd Edition, 2nd Codex), pg. 65
Antioc	Hell Forge / Forge World (former)	Obscurus	Captured by Chaos forces	Imperial Armour Volume One - Imperial Guard and Imperial Navy, pg. 8
Antioch Majoris				The Horus Heresy Book Six - Retribution, pg. 234
Antiolochus				The First Heretic (Novel), Chapter 17
Anvillus	Forge World	Ultima	Original creators of the Anvillus Pattern Dreadclaw and the Mars-Alpha Pattern of the Warlord Battle Titan	Codex: Skitarii (7th Edition), pgs. 10-11
Anvilus Nine	Forge World			Imperial Armour Volume Two, pgs. 83–84
Anzyra	Adeptus Astartes Homeworld		Homeworld of the Angels Sanguine	Index Astartes: Death Company [Help]
Aoid's Sepulchre	Dead World / Shrine World (former)			Pilgrims of Fire (Novel), Part Four, chs. 2-3
Appus IV	Forge World			Warhammer World Event - Investigation on Glomus
Aquillius	Cardinal World (former)			Shadow of Ullanor (Novel), Chapter 2
Aquilon	Adeptus Astartes Homeworld		Former homeworld of the Executioners Space Marine Chapter, now - the planet of the Sons of Medusa	Imperial Armour Volume Nine - The Badab War - Part One, pgs. 24, 40-41
Arach-Cyn	Crone World	Obscurus		Atlas Infernal (Novel), Act I, Canto VI
Aralan	Hive World			Dataslate: Storm Wing, pgs. 8–9
Arcadia	Hive World			White Dwarf 109 (UK) (Jan. 1989), The Imperial Guard
Arcadia	Xenos World		Holds vast, ancient libraries of the Harlequin	Dawn of War: Tempest (Novel) [Help]
Arcadia Secundus				For the Emperor (Novel), Chapter Nine
Arcetri	Dead World / Forge World (former)		Was attacked and consumed by a tendril of Hive Fleet Harbinger	Priests of Mars (Novel), Microcontent 07, pg. 75
Archaos	Hive World	Obscurus		Black Industries' Calixis Sector (saved archive page, dated 17 February 2008, last accessed 9 July 2024)
Archangelsk	Dead World / Gas Giant (former) / Civilized World (former)		Destroyed in 319.M36	Daenyathos (Novella), Part 2
Archipelaga	Feral World / Ocean World	Ultima	Reclaimed by the Imperium after the Damocles Gulf Crusade.	Dead in the Water (Audio Drama)
Archona	Hive World	Ultima		Warhammer 40,000 5th Edition Rulebook, pg. 138
Archos				Codex: Space Marines (5th Edition), pg. 34 — The Battle of the Sepulchre
Arconar	Feral World			Codex: Space Marines (3rd Edition), pg. 36
Ardenz IV				Black Crusade Core Rulebook, pg. 178 - Chapter 5: Force Fields
Ardium	Hive World	Ultima		White Dwarf 481, pg. 12
Areadnnil	Exodite World	Ultima		Warhammer 40,000 5th Edition Rulebook, pg. 154
Argentor	Knight World	Obscurus		Codex: Imperial Knights (8th Edition), pgs. 12–13
Argonan		Tempestus		Battle for the Abyss (Novel), Chapter 6
Argo Secundus				Catechism of Hate (Novella), Prologue
Arimaspia	Industrial World	Obscurus	Orbited by the Chrysalis Shipyards	Battlefleet Gothic Rulebook, pg. 145
Ariyo			Dekradek System.	The Blood Angels Omnibus, Appendix Angelus, pg. 603
Ark Reach Secundus	Dead World, formerly Imperial			A Thousand Sons (Novel), ch. 11
Arkadia				Warhammer Community - Battle Tanks from the Age of Darkness (last accessed 18 September 2018)
Arkalli			The industrial heart of a cluster of Imperial worlds at the limits of the Astronomican	White Dwarf 301 (UK), pg. 90
Arkhona	Dead World	Obscurus	Location of the Eternal crusade	Ethernal Crusade site - Arkhona of the Kharon System
Arkost	War World / Shrine World			Warhammer 40,000 5th Edition Rulebook, pg. 240
Arkunasha	Desert World / Xenos World	Ultima	Tau Empire colony	Codex: Tau Empire (4th Edition), pg. 14; Farsight Enclaves - A Codex: Tau Empire Supplement (E-Book) — The Arkunasha War
Armageddon	Hive World	Solar		Codex: Armageddon (3rd Edition), pgs. 13–32
Armato	Adeptus Astartes Homeworld	Ultima	Home of Sons of Orar	Codex: Space Marines (5th Edition), pg. 30
Arminiun	Imperial World		Home of the Honus Squad	Codex: Imperial Guard (3rd Edition, 1st Codex), pg. 28
Artemia Majoris	Forge World	Pacificus	Site of the Hieronymite Heresy	Imperial Armour Volume One - Imperial Guard and Imperial Navy, pgs. 8, 11
Arthas			Conquered by the forces of the Death Guard Chaos Lord Malek Vos and the Nurgle Daemon Prince, The Fly Lord.	White Dwarf 405 (UK) (ipad version) — Battle Report: And They Shall Know No Fear
Arthas Moloch	Xenos World, Artefact World, Dead World	Ultima	Location where the Dawn Blade was found	Farsight Enclaves - A Codex: Tau Empire Supplement — The Molochite Tragedy; Arks of Omen: Farsight, pgs. 30-37
Arthos				Codex: Space Marines (6th Edition) (E-Book Edition) pg. 102
Aryand	Hive World		Under Necron occupation	Codex: Necrons (5th Edition), pg. 25
Aryus Onc	Feudal World	Obscurus	Calixis Sector / Malfian Sub-sector	Dark Heresy Core Rulebook, pg. 288
Arx	Research Station	Obscurus	Alternative route out of the Eye of Terror	Codex: Chaos (2nd Edition), pg. 48; Warhammer 40,000 3rd Edition Rulebook, pg. 115
Asgard	Feudal World		Founding world for the Asgardian Rangers	Third War For Armageddon - Imperial Forces: The Asgardian Rangers (saved archive page, dated 23 August 2003, last accessed 9 July 2024)
Ashek II	Hive World	Pacificus	Reconquered during the Sabbat Worlds Crusade.	The Sabbat Worlds Crusade (Background Book), pg. 23; Honour Guard (Novel) — The Saint (Omnibus), Chapter Eleven, pgs. 181–182
Ashen	Cemetery World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Core Rulebook, pgs. 332-333
Asherkin				Crossfire (Novel), Chapter 5
Askelphion Secundus	Paradise World	Obscurus	Calixis Sector / Drusus Marches	Dark Heresy Core Rulebook, pg. 288
Asmasoria II				Codex: Orks (8th Edition), pg. 7 — The Barbarous Hordes
Asmordean V	War World			Kill Team: Elites, pg. 3
Aspen II	Civilized World	Ultima		Warhammer 40,000 5th Edition Rulebook, pg. 138
Aspiria				Revelation (Short Story)
Asterion	Hive World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Core Rulebook, pgs. 332-333
Asur	Xenos World		Site of the first Aspect Warrior Shrine, used to train the original Asurya.	Codex: Eldar (6th Edition), pg. 88
Atalia Minoris	War World			The Citadel Journal 49, pgs. 16–17
Atari Vo	Ork World	Ultima	Former Tau Sept World	Codex: Tau Empire (6th Edition), pgs. 49–53; Planetstrike, pg. 55
Atelier-888		Obscurus		Lost Hope (Short Story)
Aten III	Industrial World	Obscurus		Warhammer 40,000 5th Edition Rulebook, pg. 138
Ath-Ethon				Warhammer 40,000 5th Edition Rulebook, pg. 154
Athanos		Tempestus		Codex: Imperial Guard (5th Edition), pg. 26 - A Galaxy at War
Athonos	Civilized World / Tomb World (former)	Tempestus	Home to the Athonian Tunnel Rats Imperial Guard.	Warhammer 40,000 5th Edition Rulebook, pgs. 138, 141; Codex: Necrons (8th Edition), pg. 29
Atoma Prime	Hive World	Solar	Planetary capital of the Moebian Domain, produces Leman Russ Battle Tanks.	Warhammer 40,000: Darktide
Atraxian III		Obscurus	Calixis Sector	Dark Heresy Core Rulebook, pg. 263
Attila	Feudal World	Ultima		Codex: Imperial Guard (2nd Edition) [Help]
Augura	Imperial World	Ultima	Formerly a T'au world	Codex: Space Marines (5th Edition), pg. 48
Augury	Daemon World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Core Rulebook, pgs. 332-333
Aumet	Imperial World	Obscurus		Codex: Imperial Guard (5th Edition), pg. 26
Aurelia	Former Adeptus Astartes Homeworld	Ultima	Original Homeworld of the Blood Ravens, rendered inaccessible by Warp storms in M40 until M41	Warhammer 40,000: Dawn of War II - Chaos Rising; Warhammer 40,000: Dawn of War II - Retribution; White Dwarf July 2019 - Index Astartes: Blood Ravens
Auric		Tempestus		Imperial Armour Volume Twelve - The Fall of Orpheus, pgs. 42, 44
Aurorius				Blood Angels Painting Guide – Sons of Sanguinius, pg. 39
Australis Sunder				Against Entropy (Short Story) — The Vorbis Conspiracy (Anthology)
Au'taal	Tau Sept	Ultima		Codex: Tau Empire (4th Edition), pg. 18; Codex: Tau Empire (6th Edition), pgs. 13, 89
Autega	Death World / Shrine World			Redemption Corps (Novel), Chapter 5, pg. 163
Avalon				Index Imperialis: Apocrypha, pg. 47
Avalorn				The Horus Heresy Book Three - Extermination, pg. 85
Avar III				Index Imperialis: Apocrypha, pg. 47
Avarax	Hive world	Pacificus	Invaded by Leviathan Splinter Fleet in M42.	Warhammer 40,000: Space Marine II
Avellorn	Civilised world	Obscurus	Askellon Sector	Dark Heresy Second Edition: Core Rulebook, pg. 322
Aventine	Civilised World	Solar	Invaded by the Iron Warriors during the Horus Heresy	Codex: Chaos (2nd Edition), pg. 48; Codex: Chaos Space Marines (8th Edition), pg. 31
Avignor	Cardinal World	Obscurus		Codex: Sisters of Battle (2nd Edition) [Help]
Avitohol	Xenos World/Agri-World	Obscurus	Calixis Sector, The Periphery. Disputed between Imperial and Ork	Dark Heresy Core Rulebook, pg. 288
Azazen	Frontier World	Solar		Throne of Light (Novel), Chapter One
Azbaragus			Nurgle planet	White Dwarf 85 (2015) — Parade Ground - The Blighted, Cult of the Great Corrupter
Azoras				Sanctus (Novella) [Help]
B8400761	War World / Research Station / Artificial World	Ultima		Warhammer 40,000 5th Edition Rulebook, pg. 238
Baal	Death World / Adeptus Astartes Homeworld	Ultima	Home of the Blood Angels.	Index Astartes II, pg. 35 — Blood Angels
Baalus Trine	Feral World		A recruiting world for the Angels Sanguine Chapter.	The Blood of Angels (Short Story)
Badab Primaris	Hive World / Adeptus Astartes Homeworld (former)	Ultima	Former home of the Astral Claws.	Imperial Armour Volume Nine - The Badab War - Part One, pg. 7
Baedros	Shrine World			Codex: Harlequins (8th Edition), pg. 29 — The Dance of Ages: Faolchú's Wrath
Baih'Rus	Colony World		Eastern Fringe	Lord of the Night (Novel), Epilogue
Bakka	Forge World / Segmentum Fortress	Tempestus	Segmentum Command for Segmentum Tempestus.	Codex: Imperial Guard (2nd Edition); Battlefleet Gothic Magazine Issue 2, pgs. 31-33
Bakus III	Hive World			Imperial Armour Volume One - Second Edition: Imperial Guard, pg. 20
Balcarhsa		Ultima		Codex: Imperial Guard (5th Edition), pg. 27 - A Galaxy at War
Balecaster	Feudal World	Obscurus	Calixis Sector / Markayn Marches	Dark Heresy Core Rulebook, pg. 289
Balhaut	Cemetery World	Pacificus		The Sabbat Worlds Crusade (Background Book), pgs. 40-41
Balle Prime	War World	Pacificus		Imperial Armour Volume One - Imperial Guard and Imperial Navy, pgs. 42-43
Balmoran				Assassinorum: Kingmaker (Novel), Chapter 13
Balthasar			Conquered by the Luna Wolves during the Great Crusade.	Horus Rising (Novel), Part Two, Chapter Six
Balur	Imperial World			Codex: Imperial Guard (2nd Edition)
Bal'yth's Orb				Codex: Space Wolves (5th Edition), pg. 16
Balzac	Mining World	Obscurus		White Dwarf 287 (UK), pg. 40
Banish	Adeptus Astartes Homeworld	Obscurus	Home of the Exorcists.	Imperial Armour Volume Ten - The Badab War - Part Two, pg. 125
Banna	Civilized World	Solar		Warhammer 40,000 5th Edition Rulebook, pg. 138
Bantor III				White Dwarf 112 (UK), pg. 43 - Predator
Baran	Exodite World		Now Imperial controlled.	Epic Swordwind, pgs. 58-59
Bararat	Xenos World (former)			Warhammer Siege, pg. 95 — Example Scenarios: Nothin' But a Houseparty
Baraspine	Hive World	Obscurus	Calixis Sector / Adrantis Nebula.	Dark Heresy Core Rulebook, pg. 288
Barbarus	Destroyed — former Adeptus Astartes Homeworld / Feral World	Tempestus	Former home of the Death Guard	The Horus Heresy Book One - Betrayal, pgs. 290–291
Barbarus Prime	Dead World, formerly Mining World	Ultima		Warriors of Ultramar (Novel)
Baroda	Knight World	Obscurus	A Knight World of the Imperium during the Horus Heresy, home to the Renegade Knight Knight House Makabius. Current status unknown.	The Horus Heresy Book Four - Conquest, pgs. 106–113
Baryatin II		Pacificus		Legacy (Novel), Chapter 6
Bastion	Dead World			Forgotten Sons (Short Story)
Bastonbeil	Daemon World / Hive World (former) / Adeptus Astartes Recruiting World (former)	Ultima	Enslaved by the Company of the Shadow	Codex: Chaos Space Marines (4th Edition), pg. 41
Bast's World		Ultima		Codex: Imperial Guard (5th Edition), pg. 27 - A Galaxy at War
Bax III			Imperium Nihilus	Renegades: Lord of Excess (Novel), Chapter 2
Behtle V				Warrior Coven (Novel) — Kill Squad: A Deathwatch Omnibus, Chapter 7, pg. 286
Bekrin	Dead World / Shrine World (former)	Ultima	Destroyed by Hive Fleet Dagon.	Deathwatch: First Founding, pg. 100
Belaeno	Jungle World			Warhammer 40,000: Chaos Gate — Target of Opportunity: Belaen
Belahaam	Forbidden World / Xenos World	Obscurus	Calixis Sector / Hazeroth Sub-Sector	Dark Heresy Core Rulebook, pg. 289
Belasia	Civilised World		Ravaged by a civil war and Dark Eldar raids.	Blood Gorgons, Chapter 1
Belatis IV	Shrine World / Ice World			Imperial Armour Volume Two - Second Edition: War Machines of the Adeptus Astartes, pg. 20
Belecane	Forge World	Obscurus	Calixis Sector / Markayn Marches	Dark Heresy Core Rulebook, pg. 289
Belial	Hive World / Industrial World			Angel of Fire (Novel)
Belial IV	Crone World	Obscurus		Codex: Eye of Terror (3rd Edition), pgs. 24-25
Belis Corona	Dead World	Obscurus	Segmentum Obscurus Naval Base	Codex: Eye of Terror (3rd Edition), pg. 25
Bellicas	Adeptus Astartes Homeworld (former), Tomb World	Ultima	Home of the Emperor's Swords, wiped out by Necrons, purged by the Fire Lords	Codex: Space Marines (5th Edition), pgs. 30, 49
Belphago	Dead World		Home to pre-human ruins	Imperial Armour Volume Ten - The Badab War - Part Two, pg. 126
Berien VI	Dead World	Ultima	Eastern Fringe	Gorkamorka: Da Uvver Book, pg. 104
Berin				Black Crusade: The Tome of Blood, pg. 80
Beroghast	Ice World			White Dwarf 376 (UK), pg.25 – Assault on Beroghast
Beshic V	Forge World			Cadian Blood (Novel), Chapter VIII
Besos Nine				Lost Hope (Short Story)
Beta-Entebes III				The Horus Heresy Book Five - Tempest, pg. 200
Beta-Garmon II	Industrial World / Fortress World	Solar	Beta-Garmon Star Cluster	Adeptus Titanicus: Titandeath, pgs. 8–10; Titandeath (Novel), Chapters 24–33
Beta-Garmon III	Hive World	Solar	Beta-Garmon Star Cluster	Adeptus Titanicus: Titandeath, pgs. 8–10; Titandeath (Novel), Chapters 24–33
Beta Fortanis	Dead World		Destroyed by Tyranids.	Priests of Mars (Novel), Microcontent 05, pgs. 45–46
Betalis III	Ice World / Mining World	Solar	Invaded by Eldar forces in 894.M41	Imperial Armour Volume Eleven - The Doom of Mymeara
Betalis IV	Imperial World	Solar		Imperial Armour Volume Eleven - The Doom of Mymeara
Betel Nineteen				Master of Sanctity (Novel), Part 3 - Old Wounds
Bethelius	War World / Cardinal World			Codex: Adeptus Custodes (9th Edition), pg. 45 - The Splendour of Holy Terra
Biegel 9	Jungle World / Research Station / Tomb World (hypothesized)			Xenology (Background Book), pg. 4
Bifrost	Imperial World			The Thirteenth Black Crusade (Background Book), p. 91
Bilani	Agri World	Obscurus	Calixis Sector / Malfian Sub-sector	Dark Heresy Core Rulebook, pg. 288
Birmingham	Adeptus Astartes Homeworld / Feral World	Tempestus	Also known as the Black Planet; home of the Harbingers.	Warhammer 40,000 5th Edition Rulebook, pgs. 127, 138
Black Lake	Agri World			Cadia Stands (Novel), Part 3, ch. 12
Black Reach	Hive World	Ultima		Codex: Space Marines (5th Edition), pgs. 36–40
Blackwater	Feral World / Adeptus Astartes Recruiting World	Ultima	Recruitment ground for the Crimson Fists	Deathwatch: Honour the Chapter, pg. 59
Bleakfrost	War World	Ultima	Site of a battle between Orks and the forces of the Imperium.	Codex: Space Marines (7th Edition) — The Chronicles of Heroes - The Adamantine Line
Bleys				Master of Mankind (Novel), ch. 5
Blitzen			Home world of the Blitzen Armoured regiments of the Imperial Guard.	Imperial Armour - Imperial Vehicles for Warhammer 40,000, pg. 38
Bloodfall	Dead World / Adeptus Astartes Homeworld (former)	Solar	Home of the Red Wolves, destroyed by a splinter of Hive Fleet Leviathan	Codex: Tyranids (8th Edition), pg. 31
Blossak				War Zone Damocles: Mont'ka — Task Force Retribution Organization
Boe-Phe				Scars (Novel), Chapter 1
Boonhaven	Agri World / War World	Pacificus	Currently under attack by Waaagh! Gragnatz	Warhammer 40,000 5th Edition Rulebook, pg. 116
Bora Culpa	Dead World			Battlefleet Gothic: Armada (Book), pgs. 76-77
Boreal V	Dead World			Blood of Asaheim (Novel), Chapter Ten
Bork[4]	Ork World[4] / Industrial World (former)[4] / Frontier World (former)[4]	Eastern Fringe[4]	Named Bhorc Prime before the Ork Warboss Klawjaw united the Orks on the planet to conquer it.[4]
Bork'an	Tau Sept	Ultima	Educational, industrial, and manufacturing hub	Codex: Tau Empire (4th Edition), pgs. 18, 59
Boros		Ultima	Was invaded by the Ork Empire of Charadon but defended by the Ultramarines.	Imperial Armour Volume Two (Second Edition), pg. 22
Boros Prime	Fortress World	Obscurus	Site of the Siege of Boros Gate.	Dark Creed (Novel), ch. 2
Borvax V	War World / Mining World			Index Imperialis: Apocrypha, pg. 42
Boucherin	Hive World	Ultima		Warhammer 40,000 5th Edition Rulebook, pg. 138
Bradur IV	War World / Mining World			Codex: Adepta Sororitas (9th Edition), pg. 46
Brannik	War World / Shrine World			Conquest 64, Space Marines: Drop Pods
Bray	Imperial World	Obscurus		Codex: Chaos (2nd Edition), pg. 48
Brendine II	Dead World		Destroyed by the forces of the Slaaneshi worshiper Kallow the Tame.	Black Crusade: The Tome of Excess, pg. 77
Branx Magna	Industrial World	Solar	Highly productive Industrial world within the Moebian Domain.	Warhammer 40,000: Darktide - Character Creation - Home World: Branx Magna
Bren's World	Imperial World	Obscurus		Codex: Imperial Guard (5th Edition)
Brettaria				Missing in Action (Short Story)
Brezal III				Deathwatch: Honour the Chapter, pg. 139
Brigannion Four	Fortress World	Obscurus	Held by the Iron Warriors, nicknamed the Planet of Steel	Codex: Chaos Space Marines (4th Edition), pg. 23
Brimlock	Civilized World		Home to the Brimlock Dragoons Imperial Guard.	Imperial Armour Volume Three - The Taros Campaign, Chapter 3
Britan	Imperial World			The Thirteenth Black Crusade (Background Book), Appendix, pg. 91
Brobdigal	Death World			White Dwarf 481, pg. 11
Bront	Hive World	Obscurus	Calixis Sector / Golgenna Reach	Dark Heresy Core Rulebook, pg. 289
Brun	Ocean World			Dawn of War: Dark Crusade: Fury Island (Map Description)
Brycantia	Adeptus Astartes Homeworld	Obscurus	Home of the Iron Knights.	Codex: Space Marines (5th Edition), pg. 30
Bubonicus	Daemon World	Obscurus	Eye of Terror. Ruled over by Bubonicus, Daemon Prince of Nurgle	Realm of Chaos: The Lost and the Damned (1990), pg. 164
Bulwark	Daemon World	Ultima	Hadex Anomaly. Ruled over by the Khorne Daemon Prince Krakiota.	Deathwatch: The Achilus Assault, pgs. 87–88
Burjan's World	Fortress World		Ruled by the Iron Warriors.	The Masters, Bidding (Short Story)
Byssta	Death World			Redemption Corps (Novel), Chapter Six, Part I
Cadamine	War World / Forge World			Codex: Tyranids (8th Edition), pg. 25 — Hive Fleet Leviathan: The Ultimate Evolution
Cadia	Dead World / Fortress World (former) / Civilised World (former)	Obscurus	Blocks the Cadian Gate, home to the Cadian Shock Troopers Imperial Guard.	Codex: Chaos Space Marines (3rd Edition, 2nd Codex), pgs. 8, 81; Gathering Storm: Fall of Cadia, Chapter 3
Cadmus Phosp				Dark Imperium (Novel) Second Edition, Chapter 12
Caer Malafori				Fire Warrior (Novel), pg. 179
Caerthorn				Master of Sanctity (Novel), Part 3 - Old Wounds
Cahim II	Forge World			White Dwarf August 2019 - Battle Report: The Siege of Cahim II, pgs. 74, 88
Cairn		Ultima	Nostramo Sector. Destroyed 012.M31	The Horus Heresy Book Six - Retribution, pgs. 130-131
Calaco				Index Imperialis: Apocrypha, pg. 9
Calderia	Civilized World	Tempestus		Warhammer 40,000 5th Edition Rulebook, pg. 138
Calderis	Feudal World / Desert World / Adeptus Astartes Recruiting World	Ultima	Recruiting ground for the Blood Ravens	Rogue Trader Core Rulebook, pg. 305
Caldrin				Tallarn: Witness (Short Story)
Caliban	Destroyed — former Adeptus Astartes Homeworld / Death World	Obscurus	Former home of the Dark Angels.	Angels of Caliban (Novel), Chapters 6–7; Luther: First of the Fallen (Novel) - The Tale of the Beast
Calistra	Frontier World	Obscurus	Calixis Sector, Markayn Marches	Dark Heresy Core Rulebook, pg. 289
Calth	Civilised World	Ultima	One of the nine worlds of Ultramar.	Codex: Space Marines (8th Edition), pg. 25
Calysto Platinum		Solar		Apocalypse: War Zone Damnos, pg. 66
Camgia	Xenos World		Homeworld of the Zygo.	Warhammer 40,000 6th Edition Rulebook, pg. 196
Canak	Death World			Warhammer 40,000 3rd Edition Rulebook, pg. 115
Canau				Codex: Blood Angels (8th Edition), pg. 26 — Commander Dante
Candau	Dead World, former Agri World	Ultima		Deathwatch: Honour the Chapter, pg. 125
Canoptary Prime	Cardinal World			Master of Sanctity (Novel), Part 1 - Retribution
Canoptis II	War World			Codex: Astra Militarum (8th Edition), pg. 33 — Heroes Beyond Measure: Call of the Forge
Canopus	Hive World	Obscurus	Calixis Sector / Josian Reach	Dark Heresy Core Rulebook, pg. 289
Cano'var	Tomb World	Ultima	Formerly a Tau Sept.	Codex: Necrons (5th Edition) pg. 25
Canta IX	Industrial World	Ultima		Warhammer 40,000 5th Edition Rulebook, pg. 138
Canthicus Majoris		Solar		White Dwarf 96 (2015), Parade Ground: Extermination Clade I-X Aephus, Kataphron Breachers
Catrangras	Desert World			Codex: T'au Empire (8th Edition), pg. 34 — Armies of the Expanding Empire
Cantus	Hive World	Obscurus	Calixis Sector / Markayn Marches	Dark Heresy Core Rulebook, pg. 289
Carandinis VII		Obscurus	Had billions of its population turned into Plaguebearers by Typhus.	Warlords of the Dark Millennium: Typhus, pg. 8
Carcharias	Ice World / Hive World / Adeptus Astartes Homeworld	Ultima	Homeworld of the Crimson Consuls Chapter.	The Long Games at Carcharias (Short Story)
Cardrim	Tomb World (former) / Imperial World	Ultima	Site of the Battle of Cardrim	White Dwarf 389 (UK), pgs. 30–39
Carlos McConnell	Imperial World		Home to Felinid Abhumans.	Warhammer 40,000 6th Edition Rulebook, pg. 405
Carnac	Exodite World (former) / Tomb World		Site of the Carnac Campaign	Codex: Necrons (5th Edition), pg. 27
Carpathia	Labyrinth World / War World	Tempestus		Codex: Tyranids (5th Edition), pgs. 28–30; Tyranids Collectors' Guide, pg. 5
Carrion Deep	Necron Tomb World / Dead World / Quarantined World	Tempestus	Under Imperial quarantine.	Imperial Armour Volume Ten - The Badab War - Part Two, pgs. 88–89
Cartis IX				Apocalypse (2013), pg. 54
Caruana-W				Blind (Novel), Chapter 5
Casiorix	Forge World			Ravenwing (Novel), ch. 2 - A Cursed Name
Cassell	Agri World		Site of the Six Hour Revolution.	White Dwarf 287 (UK), pg. 25
Castigon Prime				White Dwarf 384 (UK), pg. 60
Castix VIII			Was infected by a warp virus by the Death Guard Sorcerer Porphyricus.	White Dwarf 72 (2015) — Parade Ground
Catachan	Death World / Jungle World	Ultima	Founding world of the Catachan Jungle Fighters	Codex: Imperial Guard (2nd Edition); Codex: Catachan (3rd Edition);
Cavolotus V				Know No Fear (Novel), Absolute//Overwhelm, Chapter 1
Celetradia	Shrine World			Codex Supplement: Angels of Death — Strike Forces: Famous Strike Forces
Ceocan	Agri World	Tempestus		The Oubliette (Novel), pg. 7
Ceoris Ultra		Ultima	Loki Sector / Ceoris System.	None More Loyal (Short Story)
Ceres XIV	Dead World		Destroyed by Hive Fleet Kraken during the Second Tyrannic War	Codex: Tyranids (8th Edition), pg. 22 — The Second Tyrannic War: The Loss of Ceres XIV
Cesstium	Death World			Warhammer 40,000 6th Edition Rulebook, pg. 153
Chaemos		Tempestus		White Dwarf 286 (UK), pg. 27; Codex: Imperial Guard (5th Edition), pg. 26
Chalimnus V				Codex: Chaos Space Marines (8th Edition) updated, pg. 98 — Scions of Chaos
Chandrax II	Tomb World		Former world of the Imperium, now a Necron Tomb World.	Munitorum: Quake Cannon (Background Book), pg. 3
Chandry	Mining World			Codex: Adepta Sororitas (8th Edition) — Wars of Faith
Chaoku-Minor				Blind (Novel), Chapter 7
Charadon	Ork World	Ultima	Capital of the Ork Empire of Charadon.	Codex: Orks (4th Edition), pg. 23; White Dwarf 94 (UK), pgs. 56–57
Chariban Worlds	Agri World			White Dwarf 481, pg. 10
Charo				Mechanicum (Novel), 2.07
Chaspia				Redemption Corps (Novel), Chapter 2, pg. 57
Chattackta				The Lords of Silence (Novel), Chapter 11
Chemos	Destroyed — former Adeptus Astartes Homeworld	Ultima	Former home of the Emperor's Children.	Index Astartes I, Children of the Emperor, pgs. 26-27
Chianco	Feral World / Civilized World (former) / Mining World (former)	Ultima	Known as the World that Died in One Night.	Index Chaotica: Apocrypha, pg. 38
Chigand	Cardinal World	Pacificus		Legacy (Novel), Chapter 5
Chiros	Agri World	Pacificus	Original homeworld of Rogue Trader Jan van Yastobaal	White Dwarf 262 (UK), pg. 101
Choidenmirn	Maiden World		Claimed by Ulthwé.	Throneworld (Novel), Chapter 6
Chordelis	Dead World / Civilized World (former)	Ultima	Subjected to Exterminatus by Inquisitor Lord Fidus Kryptman	Warriors of Ultramar (Novel)
Chosin	Ice World	Solar	Infested with Orks.	Codex: Armageddon (3rd Edition), pg. 33
Cinchare	Mining World	Obscurus	Orbits a rogue star in the Halo Zone	Malleus (Novel)
Cindar	Mining World	Obscurus	Calixis Sector, Malfian Sub-sector	Dark Heresy Core Rulebook, pg. 288
Cinderus XI	Mining World		Crystals from this world have peculiar properties, making them useful in the construction of Volcano Cannons.	Munitorum - Volcano Cannon, pg. 2
Circe	Gas Giant	Ultima	Part of Ultramar	Codex: Space Marines (5th Edition), pg. 33
Clanar II				White Dwarf 260 (UK) pg. 70
Clax		Ultima	Lost to the Warp since M36	Codex: Sisters of Battle (2nd Edition): The Age of Apostasy, pg. 12
Clove	Hive World	Obscurus	Calixis Sector, Hazeroth Sub-Sector	Dark Heresy Core Rulebook, pg. 289
Cloister	Frontier World	Obscurus	Calixis Sector / Hazeroth Sub-Sector	Dark Heresy Core Rulebook, pg. 289
Cochise				Index Imperialis: Apocrypha, pg. 47
Cocholos	Tomb World / Dead World	Ultima	Originally Necron, occupied by the Imperium, devastated by Daemon Prince Beublghor	Codex: Chaos Daemons (6th Edition), pg. 36; Codex: Necrons (8th Edition), pg. 12
Cociaminus		Pacificus	Sabbat Worlds; heavily contested during the Sabbat Worlds Crusade.	The Sabbat Worlds Crusade (Background Book), pg. 30
Coellow Quintus				Blind (Novel), Chapter 13
Colcha	Agri World	Pacificus		Codex: Sisters of Battle (2nd Edition), pg. 41
Colchis	Destroyed — former Adeptus Astartes Homeworld	Pacificus	Former home of the Word Bearers.	Index Astartes IV — Word Bearers; The Horus Heresy Book One - Betrayal, inside cover map
Colony Beta/54				Codex: Space Marines (3rd Edition), pg. 36
Connat's Guard				Cadia Stands (Novel), Part 3, ch. 12
Conovar		Obscurus	Site where the Chaos Space Marine Zarghan Ironfist launched an ambush that destroyed a fleet convoy of the Rogue Trader Janus Darke.	Farseer (Novel)
Constantinium	Civilised World	Pacificus	Also known as Nova Terra	Codex: Chaos Space Marines (4th Edition), pgs. 18–19; Warhammer 40,000 5th Edition Rulebook, pgs. 124–125, 144
Coralax	Adeptus Astartes Homeworld	"Beyond Imperial boundaries"	Home of the Knights of the Raven.	Codex: Space Marines (7th Edition); Codex: Space Marines (7th Edition), pg. 15
Coriallis IV	War World			Warhammer 40,000 4th Edition Rulebook, pg. 143
Corinal	Adeptus Astartes Homeworld		Homeworld of the Angels Vermillion.	Codex: Blood Angels (5th Edition), pg. 17
Corodon IV				The Labyrinth (Short Story)
Corolis				Blood Rite (Novel), ch. 1
Coronis Agathon	Hive World/Fortress World	Obscurus	Center of the Agathean Domain	Warhammer 40,000 5th Edition Rulebook, pg. 138; The Horus Heresy Book Four - Conquest, pgs. 53–63
Corossa				The First Heretic (Novel), ch. 5
Corphyra				The Horus Heresy Book Five - Tempest, pg. 112
Coseflame	Feudal World	Obscurus	Calixis Sector, Adrantis Nebula	Dark Heresy Core Rulebook, pg. 289
Cousteau XI	Dead World, formerly Adeptus Astartes Homeworld and Feudal World	Obscurus	Former home of the Fire Hawks.	Imperial Armour Volume Nine - The Badab War - Part One, pg. 69; Codex: Space Marines (7th Edition), pg. 15
Crake's World	Death World			Redemption Corps (Novel), Chapter Six, Part
Crassia II		Segmentum Obscurus	Eye of Terror	Codex: Dark Angels (8th Edition), pg. 48 — Belial
Crenax IV		Ultima		Warhammer 40,000 5th Edition Rulebook, pg. 132
Cressida	Dead World, formerly Ice World		Destroyed by Exterminatus.	Ice Guard (Novel)
Cretacia	Adeptus Astartes Homeworld / Death World / Jungle World	Tempestus	Home of the Flesh Tearers.	White Dwarf July 2019, pg. 46
Croatoa	Death World	Obscurus		Warhammer 40,000 5th Edition Rulebook, pg. 115; Warhammer 40,000 6th Edition Rulebook, pg. 153
Crone B9				Traitor Rock (Novel), Chapter 1
Crowe's World			Near the Draconic Arm	Farseer (Novel), Chapter Four
Crows World	Civilized World	Ultima	Recruiting World for the Raven Guard during the Great Crusade	Imperial Armour Volume Nine - The Badab War - Part One, pg. 29;The Horus Heresy Book Six - Retribution, pgs. 92-93
Crucis	Shrine World	Solar	Large Shrine World and 'second world' of the Moebian Domain.	Warhammer 40,000: Darktide - Character Creation - Home World: Crucis
Crux	Capital World / War World	Pacificus	Under attack by Waaagh! Gragnatz	Warhammer 40,000 5th Edition Rulebook, pg. 116
Cryptosa II				Death From the Skies (7th Edition) — Daemon Engines of Chaos
Cryptus	Cemetery World	Obscurus	Calixis Sector, Drusus Marches	Dark Heresy Core Rulebook, pg. 288
Cthartek	Hive World			Codex: Chaos Daemons (9th Edition), pg. 12 — Khorne
Cthonia	Destroyed — former Adeptus Astartes Homeworld / Mining World	Solar	Former home of the Luna Wolves.	The Horus Heresy Book Eight - Malevolence, pgs. 138-139; Index Astartes IV
Culchare	Dead World		Destroyed during the Horus Heresy.	Signal to Noise (Short Story)
Cullrak			Site of a victorious battle for the Aeldari of Craftworld Mymeara against a Daemonic incursion in 232.M41.	Dataslate: Eldar Ghost Warriors (Background Book) — Timeline — A Dark Enemy
Curwen	Agri World		Site of a Nurglite invasion in M41	Codex: Grey Knights (5th Edition), pg. 16
Cuyavale	Feral World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Enemies of the Imperium, pg. 14
Cybele	Cemetery World	Ultima		Deus Encarmine (Novel), ch. 1; The Blood Angels Omnibus - Appendix Angelus
Cyclonis			Conquered by the Emperor during the Great Crusade.	Horus Rising (Novel), Part Two, Chapter Six
Cyclopea	Forge World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Core Rulebook, pgs. 332-333
Cyclopean Prime	Hive World			Warhammer 40,000 6th Edition Rulebook, pg. 153
Cypra Mundi	Forge World / Segmentum Fortress	Obscurus	Segmentum Command for Segmentum Obscurus.	Forces of the Imperial Inquisition Collectors' Guide, pg. 4; The Horus Heresy Book Five - Tempest, pg. 73
Cyprian's Gate	Paradise World	Obscurus	Calixis Sector, Hazeroth Sub-Sector	Dark Heresy Core Rulebook, pg. 289
Cyrene	Civilized World (former) / Dead World	Ultima	Former Blood Ravens recruiting world.	White Dwarf 305 (UK), pg. 85
Cyrillion	Tomb World (former)			Codex: Dark Angels (9th Edition), pg. 55 - Crusade Rules
Cyris		Obscurus		Codex: Imperial Guard (5th Edition), pgs. 26, 58
Cyrus Vulpa	Agri World	Obscurus	Calixis Sector, Drusus Marches.	Dark Heresy Core Rulebook, pg. 288
Cystan				Index Astartes: Company Champions, pg. 15
Cytheria	Xenos World / Jungle World	Ultima	Captured from the Imperium by the T'au Empire	Warhammer 40,000 5th Edition Rulebook, pgs. 172–173
Dabenlar IV				White Dwarf 177 (UK), pgs. 48, 67–68
Daedallos		Ultima		Dark Imperium (Novel) Second Edition, Chapter 10
Daemos III				Imperial Knight Companion, pg. 59
Dakaram	Death World			The Martyr's Tomb (Novel), ch. 1
D'akhar	Death World / Desert World / Industrial World			Codex: Blood Angels (8th Edition), pg. 20 — A Chronicle of Heroes: Blood on the Sand
Dalos Prime				Imperial Armour Volume Eleven - Second Edition: The Doom of Mymeara, pg. 75
Dalthus	Mining World	Obscurus	Calixis Sector / Hazeroth Sub-Sector	Dark Heresy Core Rulebook, pg. 289
Dal'yth	T'au Sept	Ultima	Established M38	Codex: Tau Empire (6th Edition), pgs. 28, 15; Codex: Tau Empire (7th Edition), pgs. 17-18, 57
Dal'yth Tertius		Ultima		Orphans of the Kraken (Short Story)
Damnia	Death World / Adeptus Astartes Recruiting World		Recruiting world for the Angels of Vengeance Chapter.	Dataslate: Cypher - Lord of the Fallen, pg. 36
Damnos	Tomb World / Dead World / Mining World (former)	Ultima	Site of the Fall of Damnos.	Warhammer 40,000 5th Edition Rulebook, pgs. 180–181; Codex: Space Marines (9th Edition), pg.58
Danik's World	War World / Ice World formerly an Agri World	Ultima	Fought over by rebel PDF, the Vostroyan Firstborn Twelfth Army, and a host of the Venomhead Ork Clan	Rebel Winter (Novel), ch. 1
Dank IV				Deathworlder (Novel), Chapter 6
Dantium				Priests of Mars (Novel), Microcontent 10, pg. 100
Dantris III	Forge World	Ultima		Imperial Armour Volume Four - The Anphelion Project; Inquisitor Rulebook
Darcia	Imperial World			Barathrum (Short Story)
Darendara	Imperial World			First and Only (Novel) — The Founding (Omnibus), A Memory: Darendara, Twenty Years Earlier, pgs. 37-43
Darillia			Imperial world.	The Thirteenth Black Crusade (Background Book), pg. 91
Darios		Tempestus		Psychic Awakening: Engine War, pg. 4 - The Tide of Power
Darjun				Codex: Adeptus Custodes (9th Edition), pg. 22 - Trajann Valoris
Darkenhel	Imperial World			Codex: Dark Angels (7th Edition) — In the Name of Absolution
Darkhold	Adeptus Astartes Homeworld	Obscurus	Home of the Dark Sons.	Codex: Space Marines (8th Edition), pgs. 16-17
Davin	Dead World / Feral World (formerly)	Ultima	Location of Horus's fall to Chaos.	False Gods (Novel), pgs. 36–37, 60, 214
Debari	Maiden World		Claimed by Craftworld Ulthwe	Throneworld (Novel), Chapter 6
Decimius			Pyrus Reach Sector	The Gathering Storm (Short Story) (saved archive page, dated 29 January 2007, last accessed 9 July 2024)
Dekhorra VI	War World			Codex: Imperial Knights (8th Edition), pg. 82 — In Adamant Clad
Delaphina	Hive World			Blood Gorgons (Novel), ch. 5
Dellerax			Site of a war between Cadians and Saim-Hann Aeldari.	White Dwarf 366 (UK), pg. 62
Delpha II	War World / Industrial World / Mining World			Codex: Genestealer Cults (9th Edition), pg. 42 — The Faithful Throng
Delphenia	Agri World			Warhammer 40,000 5th Edition Rulebook, pg. 114
Delta Arbuthnot	Agri World		A Psyker-induced rebellion was put down with the help of the White Scars Chapter.	Hunt for Voldorius (Novel), Chapter 12
Delta Tao	War World	Ultima	Invaded by Hive Fleet Kraken	Codex: Tyranids (2nd Edition), pgs. 37, 59
Deluge	Death World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Core Rulebook, pg. 320
Deniadol	Dead World / Maiden World (former)		Consumed by Tyranids	Path of Grief (Short Story)
Denkari Minor	Death World			Imperial Armour Volume One - Imperial Guard and Imperial Navy, pg. 83
Dennar IV	Agri World, Adeptus Astartes Recruiting World		Howling Griffons Chapter Recruiting World	Imperial Armour Volume Nine - The Badab War - Part One, pgs. 124–131
Depler's Hope	Merchant World		Imperium Nihilus	Pilgrims of Fire (Novel), Part Four, Chapter Two
Derdoni	Hive World			Codex: Imperial Guard (5th Edition), pg. 23
Derwynia	Death World			Conquest of Armageddon (Novel), pg. 121
Desperation		Ultima		Only War: Core Rulebook, pg. 321
Desolatia IV	Mining World			Fight or Flight (Short Story)
Deucalia				The Battle of Tyrok Fields (Short Story)
Devlan	Mining World	Ultima		Codex: Tau (3rd Edition), pg. 8; Codex: Tyranids (5th Edition), pgs. 22, 37
Dh'artan	Sept World		Eastern Fringe	Codex: Chaos Daemons (8th Edition), pg. 53 — Rotigus
Dheneb	Ice World	Obscurus	Chaos-held world near the Eye of Terror	Warhammer 40,000: Chaos Gate — Target of Opportunity: Dheneb
Dhol VI	Tomb World	Ultima	Crownworld of the Necron Novokh Dynasty.	Codex: Necrons (7th Edition) — The Awakening Empire
Dhorthan	Hive World		Dorthian System.	Warhammer 40,000 8th Edition Rulebook, pg. 35 — In the Depths of Space
Diesos	Hell Forge		Controlled by the Dark Mechanicum.	Codex: Chaos Daemons (6th Edition), pg. 23
Dimmamar	Cardinal World	Obscurus	Birthplace of Sebastian Thor and the Confederation of Light	Codex: Sisters of Battle (5th Edition), pg. 93
Dolgan IV				Index Imperialis: Apocrypha, pg. 47
Dolsia	Imperial World			Codex: Sisters of Battle (2nd Edition), pg. 41
Donaka				War Zone Damocles: Kauyon, pg. 78
Don-Croix	Hive World	Ultima		Crossfire (Novel), Chapter 2
Dorian Prime			Lost to the Warp	Dawn of War: Tempest (Novel), Chapter Four
Dorrholtz	Penal World			Seventh Retribution (Novel), pgs. 111–112
Dorvastor	Cardinal World			Fanatic Online 31 — Swords of the Unfaithful
Doton	Dead World	Ultima		Gorkamorka: Da Uvver Book, pg. 104
Drachu	Hive World	Tempestus		Inquisitor Annual 2002, pg. 57
Draconith	Adeptus Astartes Homeworld	Obscurus	Home of the Star Dragons.	Codex: Space Marines (5th Edition), pg. 30
Drade-73		Ultima		Crossfire (Novel), Chapter 2
Drakaasi	Daemon World	Obscurus	Eye of Terror. Devoted to Khorne	Hammer of Daemons (Novel)
Drakus Prime				Warhammer 40,000 8th Edition Rulebook, pg. 92 — Forces of Chaos
Dranno IV				The Horus Heresy Book Five - Tempest, pg. 200
Draven	Tomb World	Ultima	Belongs to the Necron Novokh Dynasty	Codex: Necrons (7th Edition) — The Awakening Empire
Drazak	Tomb World	Northeast of Ultima	Ruled over by the Necron Lord Valgul.	Codex: Necrons (5th Edition), pg. 15; Codex: Necrons (9th Edition), pg. 19
Dreah	Agri World	Obscurus	Calixis Sector / Markayn Marches	Dark Heresy Core Rulebook, pg. 289
Dreer	Feral World	Ultima		Warhammer 40,000 5th Edition Rulebook, pg. 138
Dreska		Tempestus		Codex: Imperial Guard (5th Edition), pgs. 26-27
Drex				Divine Will (Short Story)
Drisinta	Civilized World	Ultima		Warhammer 40,000 5th Edition Rulebook, pg. 138
Drondii		Solar		Codex: Imperial Guard (5th Edition), pg. 26 - A Galaxy at War
Drook VI		Obscurus	Home to the Drookian Fen Guard Imperial Guard.	Cadia Stands (Novel), Part Three, Chapter Nine
Drusus/Sentinel	Shrine World	Obscurus	Calixis Sector, Drusus Marches	Dark Heresy Core Rulebook, pg. 288
Duala	War World	Ultima	Close to the Damocles Gulf	Gathering Storm: Fracture of Biel-Tan, Chapter 1: Dire Tidings for Biel-Tan - Addenda Inquisitoria
Dulan	Fortress World / Industrial World		Conquered by the Space Wolves and Dark Angels during the Great Crusade.	Deathwatch: Core Rulebook, pg. 49; Codex: Space Wolves (5th Edition), pg. 91
Dunan				Rebel Winter (Novel), Chapter 4
Dune	Special	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Core Rulebook, pgs. 332-333
Dunen II	Dead World	Ultima		Gorkamorka: Da Uvver Book, pg. 104
Dunroamin VI	Mining World	Ultima		Codex: Assassins (3rd Edition), pg. 3
Durant III				Codex: Astra Militarum (8th Edition), pg. 14 — Deployed for War
Durmian VII				Signal to Noise (Short Story)
Dusk	Feral World	Obscurus	Calixis Sector / Malfian Sub-sector	Dark Heresy Core Rulebook, pg. 288
Duthovan	Ocean World		Recruitment world for the Dark Angels Legion during the Great Crusade.	Eye of Terror (Novel), Chapter 13; The Horus Heresy Book Six - Retribution, pg. 16
Dwimlicht	Feral World	Obscurus	Calixis Sector, Hazeroth Sub-Sector	Dark Heresy Core Rulebook, pg. 289
D'yanoi	Tau Sept	Ultima		Codex: Tau (3rd Edition), pg. 64; Codex: Tau Empire (7th Edition), The Sept Worlds
Dykastra		Obscurus		Farseer (Novel), Chapter Four
Dynak	Death World			Imperial Knight Companion, pg. 35
Dynax-Abultra	Forge World		Close to the Ullanor System	Shadow of Ullanor (Novel), Chapter 7
Dynax Primus	Forge World			Apocalypse (2013), pg. 35
Dynostix V	Forge World			Codex: Orks (8th Edition), pg. 69 — Ghazghkull Thraka
Ebrimund				Villainy & Infamy (saved archive page, dated 5 July 2006, last accessed 9 July 2024)
Ecovoria	Forge World			Codex: Genestealer Cults (7th Edition) — The Hidden Dynasties
Ectosa		Segmentum Obscurus		Warhammer 40,000 5th Edition Rulebook, pg. 132
Eden Prime	Agri World (former)		Destroyed late M41	Codex: Necrons (5th Edition), pg. 24
Eidolon	Daemon World / Maiden World (former)	Obscurus	Eye of Terror. Divided in four empires, each vying for supremacy in the name of its Chaos God	Bloodquest II: Into the Eye of Terror, Episode Three
Eilixo				Scars (Novel), Chapter 5
Eireius	Death World / Jungle World			White Dwarf July 2019, pg. 46
Eirene Septimus	Death World / Mining World			The Seventh Serpent (Novella), Chapter Seven
Eisenfel	War World			Codex: Orks (8th Edition), pg. 31 — The Green Tide: Da Green Fist
Ekklestis	Industrial World			Codex: Adeptus Custodes (9th Edition), pg. 78 - Magisterium Lex Ultima
Elania			Imperium Nihilus.	Pilgrims of Fire (Novel), Part Four, Chapter Two
Elara Prime				The Emperor's Will (Short Story)
Elboryth	War World			Warhammer 40,000: Kill Team Core Manual (2nd Edition), pg. 12 — Theatres of War
Eldritch	Dead world	Ultima	Subjected to Exterminatus.	Codex: Space Marines (5th Edition), pgs. 26–27
Elipax				Blood of Iax (Novel), Chapter 12
Elnath	Jungle World			Warhammer 40,000: Chaos Gate — Target of Opportunity: Elnath
Elros	Feudal World	Obscurus	Calixis Sector, Hazeroth Sub-Sector	Dark Heresy Core Rulebook, pg. 289
Elsy'eir	Tau Sept	Ultima	Settled during the Second Sphere of Expansion	War Zone Damocles: Kauyon, pg. 119; Codex: Tau Empire (7th Edition), The Sept Worlds
Elusia Prime	Artificial World / Adeptus Astartes Homeworld	Ultima	Home of the Doom Legion.	Codex: Space Marines (5th Edition), pg. 30; Warhammer 40,000 5th Edition Rulebook, pg. 132
Elysia	Civilised World	Solar	Founding world of the Elysian Drop Troops	Codex: Imperial Guard (5th Edition), pg. 21
Elysiar	Civilized World	Obscurus	The fourth planet of Modren's Realm.	Rogue Trader: Twilight Crusade, pgs. 34–35
Emele	Maiden World / Quarantined World	Pacificus	Currently under attack by Waaagh! Gragnatz	Warhammer 40,000 5th Edition Rulebook, pg. 116
Emiline's Hope	Shrine World		Harbours the bones of Saint Emiline	White Dwarf 269, pg. 12
Empesal				Legion (Novel), Part 2, Chapter 3
Endrite	Feral World	Obscurus	Calixis Sector, Drusus Marches	Dark Heresy Core Rulebook, pg. 288
Endymion Prime	Death World			Redemption Corps, Chapter Six, Part I
Enkidu	Feral world	Obscurus	Askellon Sector	Dark Heresy Second Edition: Core Rulebook, pg. 322
Entessian				White Dwarf 112 (UK), pg. 71 - Adeptus Titanicus: Conqueror! - Robots in Adeptus Titanicus
Eorak				Warhammer Siege, pg. 95 - Example Scenarios: Orkoid Attack
Eorcshia	Dead World			Codex: Tyranids (8th Edition), pg. 23 — The Second Tyrannic War: To Strike a Blow
Ephaeda		Ultima		Crossfire (Novel), Chapter 2
Ephalia				Last Step Backwards (Short Story)
Ephisia	Hive World		Site of the Ephisian Atrocity.	We Are One (Short Story) — Hammer and Bolter 10, pgs. 22–27
Epihelikon	Jungle World / Ork World (former)		Chondax System. Purged in the aftermath of the Ullanor Crusade	Brotherhood of the Storm (Novella), Chapter 1
Ephraeleon	Dead World / Exodite World		Destroyed by Tyranids	The Path Forsaken (Audio Drama)
Epsilon Tokugawa III				Index Imperialis: Apocrypha, pg. 47
Epsion Octarius	Imperial World	Solar	Contested between Imperial and Ork Forces.	Codex: Imperial Guard (2nd Edition), pg. 11
Erenon	Adeptus Astartes Homeworld	Ultima	Home of the Celestial Guard.	Codex: Space Marines (5th Edition), pg. 30
Ergotia				Redemption Corps (Novel), pg. 48
Eridos				Death From the Skies (7th Edition) — Eldar
Erridas				Horus Rising (Novel), Part One, Chapter Ten
Erwynn's World	Adeptus Astartes Homeworld	East of Ultima	Home of the Dragon Lords.	Codex: Space Marines (5th Edition), pg. 30; Codex: Space Marines (7th Edition), pg. 15
Esko		Tempestus		Codex: Imperial Guard (5th Edition), pg. 26
Esmadoria	War World / Hive World			Codex: Orks (8th Edition), pg. 124 — Ways of the Warbands
Espandor	Cardinal World	Ultima	One of the nine worlds of Ultramar.	Codex: Ultramarines, pg. 15; Codex: Space Marines (5th Edition), pg. 31; Codex: Space Marines (8th Edition), pg. 25
Estaban III	Forge World	Ultima	Home to the Legio Tempestor	Imperial Armour Volume One - Imperial Guard and Imperial Navy, pg. 8
Estaban VII	Forge World	Ultima	Home to the Legio Magna	Imperial Armour Volume One - Imperial Guard and Imperial Navy, pg. 8
Es'Tau	Tau Sept	Ultima	Formerly Skal's Breach	Kill Team (Novel), pgs. 137, 261
Eswulus	Ocean World			Conquest of Armageddon (Novel), Chapter 2, pg. 38
Etiamnun III	Imperial World	Ultima		Dawn of War: Tempest — Blood Ravens: The Dawn of War Omnibus, Chapter Ten: Contestation, pgs. 719–721
Etorras			Eastern Fringe.	Castellan Draco
Eurytion	Imperial World		Involved in the Palatine Crusade.	Codex: Witch Hunters (3rd Edition), pg. 47
Evangel	Dead World	Ultima		Gorkamorka: Da Uvver Book, pg. 104
Eydolim	Shrine World	Ultima	Site of the Battle of Eagle Gate.	Warhammer 40,000 6th Edition Rulebook, pgs. 385–386
Eypharos				Blood Angels Painting Guide – Sons of Sanguinius, pg. 53
Eyrie	Adeptus Astartes Homeworld	Solar	Home of the Storm Wings.	Codex: Space Marines (5th Edition), pg. 30
Facrast	War World	Obscurus	Calixis Sector / Malfian Sub-sector	Dark Heresy Core Rulebook, pg. 288
Faeden's Reach		Ultima		Death From the Skies (7th Edition) — Tau Empire
Fal'shia	Tau Sept	Ultima	Founded during the First Sphere of Expansion	Codex: Tau Empire (4th Edition), pg. 18; Codex: Tau Empire (7th Edition), The Sept Worlds, Commanders
Faldon Kise	Frontier World	Obscurus	Calixis Sector / Malfian Sub-sector	Dark Heresy Core Rulebook, pg. 288
Fallon				The Flight of the Eisenstein (Novel), ch. 1
Fargon	War World / Feudal World			Warhammer Siege, pg. 94 - Example Scenarios: A Blow for Freedom
Fedrid	Feral World	Obscurus	Calixis Sector, Markayn Marches	Dark Heresy Core Rulebook, pg. 288
Felis	Adeptus Astartes Homeworld	Ultima	Home of the White Panthers.	Codex: Space Marines (5th Edition), pg. 30
Fell Core	Dead World / Hive World (former)	Ultima	Subjected to Exterminatus after Tyranid invasion	Fire Warrior (Novel), Chapter 3, pg. 63
Fenksworld	Hive World	Obscurus	Calixis Sector / Josian Reach	Dark Heresy Core Rulebook, pg. 289
Fenimore			Orbits the Gas Giant 88-Clavia	Predator, Prey (Novel), Chapter 1
Fenris	Adeptus Astartes Homeworld / Death World	Obscurus	Home of the Space Wolves.	Codex: Space Marines (5th Edition), pgs. 6–7, pg. 17, pg. 18; White Dwarf 452, pg. 19 — Index Astartes: Space Wolves: Inheritors of Russ
Ferrom	Factory World	Obscurus	Askellon Sector	Dark Heresy Second Edition: Core Rulebook, pg. 322
Ferroxian	Penal World			Warhammer 40,000 6th Edition Rulebook, pg. 153
Festus	Feudal World	Obscurus	Calixis Sector, Malfian Sub-sector	Dark Heresy Core Rulebook, pg. 288
Fervious	Feudal World	Obscurus	Calixis Sector, Drusus Marches	Dark Heresy Core Rulebook, pg. 288
Finreht Three-Seven	Feral World	Obscurus	Home to the Finreht Highlanders Imperial Guard.	White Dwarf 284 (UK), pg. 83
Firestorm	Adeptus Astartes Homeworld	Ultima	Home of the Aurora Chapter	Codex: Space Marines (7th Edition) — Ultramarines Successor Chapters
Fi'rios	Tau Sept	Ultima	Founded during the Third Sphere of Expansion	Codex: Tau Empire (4th Edition), pg. 19; Codex: Tau Empire (6th Edition), pgs. 29, 87
Flak				Witchbringer (Novel), Chapter 5
Flent			Night Lords' Fief World during the Horus Heresy	Warhammer Community: Solar Auxilia – The Heraldry of Honour Part 3 (posted 13/6/2024) (Saved archive page, dated 30 July 2024, last accessed 30 July 2024, original link: https://www.warhammer-community.com/2024/07/30/solar-auxilia-the-heraldry-of-honour-part-3/)
Fleur-de-Fides	Cardinal World	Solar	Destroyed during the War of the Beast.	Predator, Prey (Novel), Chapter 6
Flijghof				Index Imperialis: Apocrypha, pg. 43
Florins		Obscurus	The planet's male population was completely wiped out by the dreaded Red Flux disease, released by Typhus the Herald of Nurgle.	Warlords of the Dark Millennium: Typhus, pg. 8, Typhus the Traveller
Flotte			Imperial world.	The Thirteenth Black Crusade (Background Book), pg. 91
Foldane's Landing				Shield of Baal: Exterminatus — The Angels Resurgent
Folion				First and Only (Novel) — The Founding (Omnibus), A Memory: Gylatus Decimus, Eighteen Years Earlier, pgs. 69-70 (Interstitial between Parts Two and Three)
Follax IV		Ultima		Codex: Imperial Guard (5th Edition), pg. 27 - A Galaxy at War
Fool's Paradise	Daemon World	Obscurus		Codex: Imperial Guard (5th Edition), pg. 23
Forasticus Prime	Death World / Jungle-subtype	Obscurus		White Dwarf July 2019, pg. 52
Foray-Secundus				The Horus Heresy Book Six - Retribution, pg. 204
Fordris	Tomb World		Site of the Battle of Fordris	Codex: Necrons (5th Edition), pg. 20
Forgefane	Fortress World (former) / Dead World	Tempestus	Held by the Iron Warriors until the invasion of Hive Fleet Leviathan in 997.M41.	White Dwarf 362 (UK), pg. 46 — Liber Apocalyptica: Trygons
Forge Polix	Hell Forge	Obscurus		Black Crusade: The Tome of Fate, pg. 36
Forgewell				The Purging of Kadillus (Novel), The Tale of Belial - Counter-attack
Formal Prime	Hive World	Pacificus	Reconquered during the Sabbat Worlds Crusade	The Sabbat Worlds Crusade (Background Book), Phase One, pgs. 14-18
Formanton IV	War World / Hive World			White Dwarf 50 (2015) — Regiments of Renown
Fornax Aleph	Hive World	Pacificus	Reconquered during the Sabbat Worlds Crusade	The Sabbat Worlds Crusade (Background Book), pgs. 28-29
Foronika		Ultima	Nephilim Sector / Argovon System	White Dwarf 457, pg. 54
Fortrea Quintus				White Dwarf 270 (UK), pg. 53
Fortress	Adeptus Astartes Homeworld	Ultima	Home of the Crimson Paladins.	Codex: Space Marines (5th Edition), pg. 30
Fortis Binary	Forge World	Pacificus	Reconquered during the Sabbat Worlds Crusade	First And Only (Novel), Part Two: Fortis Binary Forge World, chs. 4, 9
Foth III				Warrior Coven (Novel) — Kill Squad: A Deathwatch Omnibus, Chapter 7, pg. 264
Foth VI	Feudal World			Warrior Coven (Novel) — Kill Squad: A Deathwatch Omnibus, Chapter 7, pg. 264
Fourtheden	Agri-World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Enemies of the Imperium, pg. 12
Framlingham	Imperial World		Home to the Framlingham Rifles Imperial Guard.	The Thirteenth Black Crusade (Background Book), pg. 91
Frumenta	War World / Agri World / Ork World (former)			The Only Good Ork (Short Story)
Fulgor II	War World / Industrial World			Codex: Chaos Space Marines (9th Edition), pg. 125 - Crusade Rules
Furund	Ice World			Warhammer 40,000: Chaos Gate — Target of Opportunity: Furund
Fychis Dolorous				Necropolis (Novel), ch. 17
Fydae Minos	Agri World	Obscurus	Calixis Sector / Malfian Sub-sector / Fydae System	Dark Heresy Core Rulebook, pg. 288
Gabrydon	Mining World			White Dwarf 261 (UK) pg. 67
Gacrux	Desert World			Warhammer 40,000: Chaos Gate — Target of Opportunity: Gacrux
Gaero Alphus			Lost to Nurglite forces in M36.	Codex: Chaos Daemons (6th Edition), pg. 21
Galan V				Imperial Armour - Imperial Vehicles for Warhammer 40,000, pgs. 40–42
Galaspar	Hive World			The Horus Heresy Book One - Betrayal, pgs. 136–137
Galathas II	Ice World			Fire Warrior (Novel), Chapter 2, pg. 39
Galavan	Jungle World			Death or Glory (Novel) — Ciaphas Cain: Defender of the Imperium (Omnibus), Chapter Nine, pg. 102, fn. 1
Galfranus V	Agri World			Imperial Knight Companion, pg. 39
Gallilenus III	Cardinal World		Center of the Gallilenus Heresy	Inquisitor: The Thorians, pg. 6
Galmor	Death World / Jungle World / Swamp World			Warhammer 40,000: Dawn of War - Dark Crusade: Abandon All Hope (Map Description); White Dwarf July 2019, pg. 46 - Death World Jungles
Galterian Prime				Warhammer Community: Psychic Awakening: Sanguine (Posted 09/12/2019) (Last accessed on 9 December 2019)
Gamara 12		Pacificus	Reclaimed during the Macharian Crusade.	Fist of Demetrius (Novel), Chapter 13, pgs. 82–83
Gametha				White Dwarf 64 (2015) — The Eldar Warhosts: Marking out the Warhost
Gammenon IX		Ultima		Fire Warrior (Novel), Chapter 2, pg. 35
Gandian Saturnalia				Pestilence (Short Story)
Ganf Magna	Frontier World / Mining World	Obscurus	Calixis Sector / The Periphery	Dark Heresy Core Rulebook, pg. 288; Only War: Core Rulebook, pgs. 332-333
Garaghak's World	Hive World (former) / Ork World	Tempestus	Named Forsarr before falling to Waaagh! Garaghak	Imperial Armour Volume Eight - Raid on Kastorel-Novem, pgs. 76–77
Garalon Prime		Ultima	Garalon System	The Horus Heresy Book Five - Tempest, pg. 18
Gareva		Ultima		The Horus Heresy Book Five - Tempest, pg. 18
Gargathea III	Feral World	Ultima	Site of several battles during the Badab War.	Imperial Armour Volume Nine - The Badab War - Part One, pgs. 6, 101
Garguur			Gulgorahd Protectorate. Destroyed 012.M31	The Horus Heresy Book Six - Retribution, pg. 130
Garm	Industrial World	Obscurus	Associated with the Space Wolves Chapter	Grey Hunter (Novel), chs. 2, 3, 9, 14
Garomar				The Traitor's Hand (Novel) — Editorial Note after Chapter 14, pg. 674, fn. 1 - Ciaphas Cain: Hero of the Imperium (Omnibus)
Gatera				White Dwarf July 2019 — Raven's Blood (Short Story)
Gath Rimmon	Death World			Runes (Short Story)
Gathalamor	Cardinal World	Solar	Diocese of the heretical Cardinal Bucharis during the Age of Apostasy	Codex: Sisters of Battle (2nd Edition), pgs. 39–42
Gathis II	Adeptus Astartes Homeworld		Gathis II is the current Homeworld of the Doom Eagles Chapter.	The Returned (Short Story)
Gehenna	Forge World		Produces the Manticore platform, possibly (or not) site of the Gehenna Campaign.	Imperial Armour - Imperial Vehicles for Warhammer 40,000, pg. 62
Gehenna Prime		Ultima	Site of an Ork invasion and a Genestealer infestation.	Titan Legions (game), The Fires of Gehenna scenarios booklet, pgs. 2-3
Gehöft	Agri World (former) / Dead World		Invaded by Nurglite daemons, subjected to Exterminatus.	Kor'sarro Khan: Huntmaster (Short Story)
Gelmiro Primus	War World	Obscurus	Calixis Sector, Markayn Marches. Part of the Gelmiro System	Dark Heresy Core Rulebook, pg. 289
Gelmiro Secundus	War World	Obscurus	Calixis Sector, Markayn Marches. Part of the Gelmiro System	Dark Heresy Core Rulebook, pg. 289
Gelmiro Tertius	War World	Obscurus	Calixis Sector, Markayn Marches. Part of the Gelmiro System	Dark Heresy Core Rulebook, pg. 289
Genarius Prime				Inquisitor (film)
Genovinga				White Dwarf 265 (UK), pg. 21
Geratomro	Industrial World	Tempestus	A.k.a. Gerat III, Gerat Prime	Shadowsword (Novel), ch. 1
Gershom	Imperial World			The Curiosity (Short Story)
Gereon	Imperial World	Pacificus	Formerly under Chaos control.	Traitor General (Novel)
Gethseda				Rebirth (Novel), Chapter 21
Geyluss Auspix				First and Only (Novel), Part Six, Chapter Twenty-Three
Ghalmek	Daemon World	Ultima		White Dwarf 270 (UK), pg. 53
Gharex V				Codex: Harlequins (8th Edition), pg. 27 — The Reaper's Mirth
Gheden	Tomb World	Ultima	Crownworld of the Nihilakh Dynasty.	Codex: Necrons (5th Edition), pg. 14
Gheistos	Agri World (former) / Dead World		Invaded by Chaos, subjected to Exterminatus	Warhammer 40,000 5th Edition Rulebook, pgs. 152-153
Gheldor X	War World			Codex Supplement: Salamanders (8th Edition), pg. 43 - The Art of Fire
Ghinga	War World		Fought over by the Imperium and Chaos.	White Dwarf 114 (UK), pg. 13
Ghola's Hope	Shrine World	Ultima		Warhammer 40,000 5th Edition Rulebook, pg. 128
Ghoma VI				Codex: Chaos Daemons (9th Edition), pg. 24 - Slaanesh
Ghorsk IV				Regimental Standard: Flawless Crisis Instructions for Humans (Posted on 10/03/2021) (Last accessed on 10 March, 2021)
Ghorstangrad	former Adeptus Astartes Homeworld	Tempestus	Former Homeworld of the Emperor's Swords Chapter.	Codex: Chaos Space Marines (6th Edition), pg. 24
Ghül	Xenos World			Hereticus (Novel), ch. 17
Gidrim	Tomb World	Ultima	Ruled by Nemesor Zahndrekh of the Sautekh Dynasty	Codex: Necrons (5th Edition), pg. 60
Gilreh				Fire Warrior (Novel), Chapter 5, pg. 120
Glacia IX	Ice World			Apocalypse: War Zone Damnos, pg. 34
Gladris				The Horus Heresy Book Seven - Inferno, pg. 141
Glenescrede Raptus	Dead World / Forge World (former)	Pacificus	Destroyed in 999.M41.	Gathering Storm: Fracture of Biel-Tan, Chapter 3: Clash on the Ice Moon - Addenda Dominus
Gloriam	War World	Pacificus	Contested between Ork and Imperial Forces.	Warhammer 40,000 5th Edition Rulebook, pg. 116
Glorificum Alpha	Cardinal World			Codex: Adeptus Custodes (8th Edition), pg. 51
Glysos	War World			Blood Angels Painting Guide – Sons of Sanguinius, pg. 53
Gnosis Prime	Hive World			Champions of Fenris, pgs. 17, 16–19
Gnotis	Shrine World / Artificial World			White Dwarf 481, pg. 13
Goborra	Mining World	Tempestus		Psychic Awakening: Engine War, pg. 4 - The Tide of Power
Gohliath IV				Warrior Coven (Novel) — Kill Squad: A Deathwatch Omnibus: Chapter 6, pg. 271
Golgotha	Ork World / Tomb World (hypothesized)	Ultima		Gunheads (Novel), Chapter Twenty-Five, pgs. 228, 234
Golia VII	Daemon World			White Dwarf 313 (UK), pg. 75
Gomgrath				Ravenwing (Novel), Three - Honour
Gonides VII				Codex: Space Marines (8th Edition, 2nd Codex), pg. 92
Gonomondium	Quarantined World			Warhammer 40,000 6th Edition Rulebook, pg. 153
Gonoria Prime	Desert World		Site of the Gonoria Prime Rebellion	Imperial Armour - Imperial Vehicles for Warhammer 40,000, pgs. 66–6
Goranado	Jungle World			Warhammer 40,000: Chaos Gate — Target of Opportunity: Goranado
Goranl	Hive World	Obscurus	Nachmund Sub-Sector.	White Dwarf 475, pg. 68 - Flashpoint: Nachmund - The Acts of the Wardens
Gorgonum	Forge World	Ultima		White Dwarf 63 (2015) — Battleground: Gorgonum; Space Hulk: Tactics
Gorkamorka	Ork World / Tomb World	Ultima	Also known as Angelis.	Gorkamorka: Da Uvver Book, pgs. 5-10, 103–105; Gorkamorka: Digganob, pgs. 6-8, 29, 57, Back cover
Gororan III				Inquisitor Annual 2002, pg. 56
Gorrobin			Abrint Sector.	The Sixth Cult of the Denied (Short Story)
Goru-Prime	Desert World		Native world of the Mukaali Xenos	Imperial Armour Volume Three - The Taros Campaign, pg. 60
Gorzal	Swamp World			Tyranids: Forgotten Fleets
Go'shol	Ice World	Ultima	Currently a warzone for the T'au Empire	War Zone Damocles: Kauyon, pg. 119
Goth	Forge World	Obscurus		Codex: Necrons (7th Edition), pg. 13
Goughen				The Final Compliance of Sixty-Three Fourteen (Short Story)
Govina	Sept World	Ultima		Blood Gorgons (Novel) — Chapter 5
Graffias	Jungle World			Warhammer 40,000: Chaos Gate — Target of Opportunity: Graffias
Graia	Forge World	Tempestus		Imperial Armour Volume One - Imperial Guard and Imperial Navy, pgs. 8, 144, 179
Graiad				Death From the Skies (7th Edition), Deathbringer Skylegions
Grammachus Beta	Forge World			Codex Supplement: Angels of Death, Strike Force Grolvoch
Grangold	Dead World	Obscurus	Calixis Sector, Adrantis Nebula	Dark Heresy Core Rulebook, pg. 288
Granithor	Cemetery World	Obscurus	Calixis Sector, Golgenna Reach	Dark Heresy Core Rulebook, pg. 289
Gravalax	Agri World	Ultima		For the Emperor (Novel) — Ciaphas Cain: Hero of the Imperium (Omnibus), Editorial Note Between Chapters Two & Three (pgs. 61-63), Chapter Nine
Greater Eydolim	Mining World / Gas Giant	Ultima		Warhammer 40,000 6th Edition Rulebook, pgs. 384, 386-387, 389
Greiman's World				Master of Sanctity (Novel), Part 3 - Old Wounds
Grendel's World	Dead World	Ultima	Destroyed by the Night Lords.	Index Astartes II, pg. 26
Grettel		Obscurus		Lost Hope (Short Story)
Grimoyr		Pacificus	Was occupied by the forces of Chaos.	The Sabbat Worlds Crusade (Background Book), Phase Four, pg. 56
Grodisphere				Codex: Imperial Knights (7th Edition), A Noble Legacy — Knights Gallant
Grosphox IV				War Zone Damocles: Kauyon, pg. 87
Grove's Fall	Hive World	Obscurus	Calixis Sector / Markayn Marches	Dark Heresy Core Rulebook, pg. 289
Grull				Codex: Dark Angels (8th Edition), pg. 39 — Close Support Squads
Grunald	Agri World			Crimson Slaughter - A Codex: Chaos Space Marines Supplement (6th Edition), pg. 22 — The Crimson Slaughter Unleashed
Gruss	Agri World	Obscurus	Belongs to the Rogue Trader Vyr Modren (see also Modren's Realm).	Rogue Trader: Twilight Crusade, pg. 35
Gryphonne IV	Forge World (former) / Dead World	Tempestus	Eaten by Hive Fleet Leviathan.	Imperial Armour Volume One - Imperial Guard and Imperial Navy, pg. 8
Gudrun	Civilised World / War World	Obscurus		Codex: Imperial Knights (8th Edition), pg. 85 — In Adamant Clad
Guer III		Tempestus		White Dwarf 63 (2015) — Regiments of Renown
Gulinglas				Missing in Action (Short Story)
Gunpoint	Hive World	Obscurus	Calixis Sector / Hazeroth Sub-Sector	Dark Heresy Core Rulebook, pg. 289
Guranta			Gurantan System	Warhammer 40,000: Rogue Trader, pg. 27
Gurgit's Mekworld	Ork World / T'au Sept (former)			White Dwarf 452, pg. 38
Guryan	Mining World	Pacificus		Codex: Sisters of Battle (2nd Edition), pg. 41
Guytoga	Hive World	Obscurus	Calixis Sector, Hazeroth Sub-Sector	Dark Heresy Core Rulebook, pg. 289
Gythos			Subjected to a daemonic incursion in 888.M41, harvested by Necrons after the latter defeated the Daemons.	Codex: Necrons (7th Edition) — A New Epoch Begins
Haakonath	Destroyed. Former Adeptus Astartes Homeworld.		Former Adeptus Astartes Homeworld of the Star Phantoms Space Marines Chapter. Destroyed by the Hrud.	Imperial Armour Volume Ten - The Badab War - Part Two, pgs. 135-136
Haark			Attacked in 477.M39 by the Daemons of Tzeentch and then destroyed in a supernova explosion. See also By the Dying Light incident.	Dataslate: Space Marines Strike Force Ultra (Background Book), pg. 13
Hadd	Forge World	Obscurus	Calixis Sector, Drusus Marches. Part of The Lathes	Dark Heresy Core Rulebook, pg. 288
Haddrack	Death World	Obscurus	Calixis Sector, Drusus Marches	Dark Heresy Core Rulebook, pg. 288
Hadleys Hope			Imperial world.	The Thirteenth Black Crusade (Background Book), pg. 91
Hagia	Feudal World / Shrine World	Pacificus	Birthplace of Saint Sabbat	Honour Guard (Novel) — The Saint (Omnibus); Epigraph before Chapter One, Chapter One, Chapter Five
Halanga	Desert World			Codex: Adeptus Custodes (9th Edition), pg. 42 — The Splendour of Holy Terra
Halcrot III				Warhammer Siege, pg. 95 - Example Scenarios: This is Not A Drill
Haldor			Pyrus Reach Sector	Blind Hopes (Short Story) (saved archive page, dated 4 July 2007, last accessed 9 July 2024)
Hale				The Horus Heresy Book Six - Retribution, pgs. 81 & 130
Halea				Codex Supplement: Raven Guard (8th Edition), pg. 46 - The Raven's Panoply
Hambro Cuth	Feudal World			Warhammer Siege, pg. 94 - Example Scenarios: For Your Own Good
Hamooth	Agri World			Iron Hands (Novel), ch. 13, pg. 224
Hannizare				The Horus Heresy Book Three - Extermination, pg. 60
Happenstance	Civilised World		Part of the Sanctimonia Conflict in 291.M37	White Dwarf 492, pg. 141
Harakon	Hive World		Home to the Harakoni Warhawks Imperial Guard Regiments.	Codex: Imperial Guard (3rd Edition, 2nd Codex), pg. 6
Hare				Last Step Backwards (Short Story)
Harkon		Solar		Codex: Imperial Guard (5th Edition), pg. 26
Haruthalen				Codex: Dark Angels (9th Edition), pg. 52 - Crusade Rules
Haxan Prime	Quarantined World			Warhammer 40,000 6th Edition Rulebook, pg. 153
Hazhim	Hive World	Ultima	Orbited by deep-space foundries	Crossfire (Novel), chs. 2, 11
Heckla	Ice World	Obscurus		Iron Hands (Novel), ch. 9, pg. 134
Heed	Dead World	Obscurus	Calixis Sector, Markayn Marches	Dark Heresy Core Rulebook, pg. 288
Hegelian IX				Warrior Brood (Novel) — Kill Squad: A Deathwatch Omnibus, ch. 3, pgs. 44–45
Heidrun			Imperial World	The Thirteenth Black Crusade (Background Book), pg. 91
Heletine	Cardinal World	Ultima	In 980.M41, Heletine was embroiled in the Promethean War, a conflict between Sisters of Battle and the Salamanders Space Marine Chapter against the Black Legion Chaos Space Marines.	Rebirth (Novel), chs. 1, 8, 20, 22, 26, 35, 38; Codex: Chaos Space Marines (8th Edition), pg. 20
Helios	Forge World		Besieged by Orks in 857.M38	Imperial Armour Volume Two, pg. 106; Imperial Armour Volume Two - Second Edition, pg. 18
Hellenis				Ravenwing (Novel), Three - Honour
Hellgrace	Forge World			Imperial Armour Volume One - Second Edition: Imperial Guard, pg. 119
Hellicore				Garro: Shield of Lies (Audio Book)
Helmont	Dead World		Consumed by Hive Fleet Behemoth during the First Tyrannic War	Codex: Tyranids (8th Edition), pg. 16 — The First Tyrannic War: Behmoth Advances
Hemisphere	Hive World			Imperial Armour Volume Eleven - The Doom of Mymeara Second Edition, pg. 24
Henvinka				Virtues of the Sons (Short Story)
Herculanis	Forge World			Codex: Chaos Daemons (9th Edition), pg. 39 - Infernal Panoply
Hermetica	Hive World	Solar	Capital of the Chonma Sector	Imperial Armour Volume Ten, pg. 109
Herod	Desert World / Mining World	Obscurus	Supplies crystals for the manufacture of las-weapons across the Achilles subsector	Iron Hands (Novel) chs. 7 (pgs. 100–106), 8 (pgs. 111–118, 122-124), 9 (pg. 130)
Herodor	Imperial World	Pacificus	Contested between Imperial and Chaos Forces.	Sabbat Martyr, ch. 1
Hervara	Forge World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Core Rulebook, pgs. 332-333
Hesh	Forge World	Obscurus	Calixis Sector, Drusus Marches. Part of The Lathes	Dark Heresy Core Rulebook, pg. 288
Heshimar				A Rose Watered With Blood (Short Story)
Hesiod's Wake	Agri World	Obscurus	Calixis Sector, Hazeroth Sub-Sector	Dark Heresy Core Rulebook, pg. 289
Hesperax	Dead World, former Xenos World	Obscurus		Warrior Coven (Novel) — Kill Squad: A Deathwatch Omnibus, ch. 4 (pgs. 220–226)
Het	Forge World	Obscurus	Calixis Sector, Drusus Marches. Part of The Lathes	Dark Heresy Core Rulebook, pg. 288
Heterodyne	Feudal World	Obscurus	Calixis Sector, Hazeroth Sub-Sector	Dark Heresy Core Rulebook, pg. 289
Hethgar Prime		Ultima		Warhammer 40,000: Regicide, Intro, Act 2 Mission X, Act 2 Mission XIII
Heugen's Anvil				Codex: Tyranids (8th Edition), pg. 23 — The Second Tyrannic War: The Anvil
Hevaran				Warhammer Community: High Marshal Helbrecht Gets It Together in His New Black Library Novel (Posted on 15/06/22) (Last accessed on 15 June 22)
Hexis Alpha	Hive World		The Knights of House Mortan, House Althalos and House Thalmus saved the Hive World when a Warp rift spawned a tide of Daemons across the planet.	Codex: Imperial Knights (6th Edition) — The Knightly Houses - Lesser Houses
Hilarion	Agri World / Feudal World	Obscurus	Calixis Sector, Hazeroth Sub-Sector	Dark Heresy Core Rulebook, pg. 289
Hlatan		Tempestus		Imperial Armour Volume Twelve - The Fall of Orpheus, pg. 42
Hoight	Garden World	Pacificus	Liberated during the Macharian Crusade	Codex: Imperial Guard (3rd Edition, 1st Codex), pg. 49 (inside back cover)
Holda	Dead World	Obscurus		Gorkamorka: Da Uvver Book, pg. 104
Holgar IV				White Dwarf 112 (UK), pg. 43 - Predator
Holst (Signus VI)	Quarantined World	Ultima Segmentum	Part of Signus Cluster	Fear to Tread (Novel) - Chapter Five
Honourum	Feral World / Adeptus Astartes Homeworld	Ultima	Home of the Novamarines.	Codex: Space Marines (5th Edition), pg. 30; Death of Integrity (Novel), ch. 2 (pg. 24)
Horestis	Dead World / Daemon World (former)		Once a fief of Nurgle, destroyed by Exterminatus from the Imperial Navy.	Black Crusade Core Rulebook, pg. 342
Horizon	Frontier World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Core Rulebook, pgs. 332-333
Horos				Codex: Khorne Daemonkin (7th Edition) — Slaughter Without End — Mired In Blood
Horsk	Dead World			Renegades: Lord of Excess (Novel), Chapter 2
Horzark Prime				Codex: Orks (9th Edition), pg. 29 - Mad Dok Grotsnik: Da Corpse Grab
Ho'sarn	Tau Sept	Ultima		Codex: Tyranids (5th Edition), pgs. 18–21
Houns Ashemashea	Maiden World			Rise of the Ynnari: Wild Rider (Novel), Chapter 22
Hranx	War World / Hive World		Contested between the Imperium and the Alpha Legion.	Hunted (Short Story) — Hammer and Bolter 4
Hredrin	Hive World	Obscurus	Calixis Sector, Josian Reach	Dark Heresy Core Rulebook, pg. 289
Hualda-IX				The Horus Heresy Book Seven - Inferno, pg. 209
Hubris	Ice World	Obscurus	Scarus Sector / Helican Subsector	Xenos (Novel), One — A cold coming. Death in the dormant vaults. Some puritanical reflections.
Hubris IV	Agri World	Obscurus		White Dwarf 264 (UK), pg. 67
Hulee V	Hive world	Obscurus	Askellon Sector	Dark Heresy Second Edition: Core Rulebook, pg. 322
Hurspraxia	Dead World		Rendered lifeless by unidentified Xenos	Codex: Imperial Guard (5th Edition), pg. 7
Husk	Hive World / War World			Lazarus: Enmity's Edge (Novel), ch. 1
Hyannoth IV	Imperial World		Home to Neandor Abhumans	Warhammer 40,000 6th Edition Rulebook, pg. 405
Hyades	Jungle World	Obscurus		Sons of Fenris (Novel), ch.2
Hydra Minoris	Dead World	Obscurus	Quarantined in 757.M41 due to an outbreak of Zombie Plague	Warhammer 40,000 6th Edition Rulebook, pg. 172; Codex: Chaos Space Marines (6th Edition), pg. 22; White Dwarf 291 (UK), pg. 96
Hydraphur	Forge World / Segmentum Fortress	Pacificus	Segmentum Command of Segmentum Pacificus	White Dwarf issues 139 and 140, Interstellar Travel
Hypnoth	Forge World	Ultima	Conquered by the Necrons.	Codex: Necrons (5th Edition), pg. 26
Hypasitis	Cemetery World	Obscurus		Deathwatch: Honour the Chapter, pg. 90; Carcharodons: Outer Dark (Novel), ch. 4 (pg. 81)
Hyraq II				Codex: Khorne Daemonkin (7th Edition) — Slaughter Without End — One Hundred Skulls
I'Ycklaha	Death World / Jungle World			White Dwarf July 2019, pg. 46
Iax	Death World / Paradise World (former) / Agri World (former)	Ultima	One of the nine worlds of Ultramar, corrupted during the Plague Wars	Codex: Space Marines (8th Edition), pg. 25; Dark Imperium: Godblight (Novel), chs. 33, 43
Icefang	Adeptus Astartes Homeworld	Ultima	Home of the Tigers Argent.	Codex: Space Marines (5th Edition), pg. 30
Ichar IV	Hive World	Ultima		White Dwarf 263 (UK), pg. 78
Ichorax	Dead World / Hive World (former)		Population wiped out by Emperor's Children in 999.M41	Index Chaotica: Possessed (Background Book) — Daemonic Deeds - Screams of the Dying
Ichoria	Daemon World	Obscurus		White Dwarf 282 (UK), pg. 21 — The Eye of Terror — Daemon Worlds
Ichtar IX	Mining World		Population wiped out in M32	Codex: Chaos Daemons (6th Edition), pg. 33 Codex: Chaos Daemons - Daemonic Incursion Edition, pg. 20
Ichovor	Feudal World	Obscurus	Calixis Sector, Hazeroth Sub-Sector	Dark Heresy Core Rulebook, pg. 289
Idumea	Forge World	Obscurus	Calixis Sector, Hazeroth Sub-Sector	Dark Heresy Core Rulebook, pg. 289
Iduno	Imperial World			Codex: Space Marines (4th Edition), pg. 47
Idyll	Shrine World			Codex: Khorne Daemonkin (7th Edition) — Slaughter Without End — Exultance
Iesta Veracrux	Agri World	Ultima		Nemesis (Novel), chs. 1-3
Ignatius Cardinal	Cardinal World		Also known simply as Ignatius	First and Only (Novel) — The Founding (Omnibus), A Memory: Ignatius Cardinal, Twenty-Nine Years Earlier, pgs. 107-111 (Interstitial between Parts Three and Four)
Illiun				Watchers of the Throne: The Emperor's Legion (Novel), Chapter 18 - Aleya
Illustria IV				Rites of Passage (Novel), The Star Lounge
Imon			Pyrus Reach Sector	The Gathering Storm (Short Story)
Incaladion	Forge World	Ultima		Imperial Armour Volume One - Imperial Guard and Imperial Navy, pg. 8; Codex: Skitarii (7th Edition), pgs. 10-11 — Bastions of the Machine God
Incron	Ocean World	Solar	Naval depot of the Moebian Domain's battlefleet.	Warhammer 40,000: Darktide - Character Creation - Home World: Incron
Incunabla	Dead World		Where the Chapters of the 21st Founding were secretly created.	White Dwarf 260 (UK), pgs. 98-102
Inferria-Prime				Fire Warrior (Novel), ch. 6 (pg. 162)
Infidus Brim		Solar	A tumultuous vassal world of the Moebian Domain located in the Moebian Fringe Region.	Warhammer 40,000: Darktide
Ingiga	Adeptus Astartes Homeworld	Solar	Home of the Angels of Fury.	Codex: Space Marines (5th Edition), pg. 30
Innocence III	Shrine World			Codex: Space Marines (7th Edition) — The Chronicles of Heroes - Firestorm
Inwit	Ice World / Adeptus Astartes Recruiting World	Tempestus	Former homeworld of Rogal Dorn, recruiting ground for the Imperial Fists	Space Marine (Novel), Chapter Two; The Horus Heresy Book One - Betrayal, pgs. 290–291
Iobos				Codex: Space Marines (8th Edition, 2nd Codex), pg. 101 - Insignium Astartes
Iocanthos	Agri World	Obscurus	Calixis Sector / Golgenna Reach	Dark Heresy Core Rulebook, pg. 288
Iolas IX				Iron Devil (Audio Drama), e-book version
Ionus X	Forge World			Codex: Imperial Knights (8th Edition), pg. 116 — Heirlooms of the Noble Houses: Honour's Bite
Ipheriax Tertius				Grey Talon (Short Story)
Iris	Death World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Core Rulebook, pgs. 332-333
Ironhelm	Forge World		Liberated in 901.M41 from Waaagh! Bludcrumpa by the Blood Angels.	Codex: Blood Angels (5th Edition), pg. 15 — A Legend Forged of Blood: The Battle of Stonehaven
Ironghast Foundry	Hell Forge		Dedicated to Khorne.	Codex: Khorne Daemonkin (7th Edition) — The Ironghast Foundry
Isla'su	Ocean World	Ultima	Belongs to the Tau Empire. Homeworld of the Greet xenos.	Codex: Tau Empire (6th Edition), pg. 10
Issenheim	Ice World			Codex: T'au Empire (8th Edition), pg. 64 — XV88 Broadside Battlesuits
Issinium			Issinium System	Misbegotten (Short Story)
Isstvan III	Dead World	Ultima		Realm of Chaos: Slaves to Darkness, pg. 240; Codex: Chaos Space Marines (3rd Edition, 2nd Codex), pg. 5
Isstvan V	Imperial World	Ultima	Location of the Drop Site Massacre.	The Horus Heresy Book One - Betrayal, pg. 1; The Horus Heresy Book Two - Massacre, pg. 26 (sidebar)
Ithaka	Ocean World / Adeptus Astartes Homeworld	Obscurus	Also called the Cradle of Snakes, home of the Iron Snakes.	Brothers of the Snake (Novel), Part Five
Ithlas				Imperial Armour II - Ork, Eldar and Dark Eldar Vehicles for Warhammer 40,000, pg. 43
Ixus IX	Dead World / Tomb World (former) / Penal World (former)			Cold Blood (Short Story)
Ixya	Dead World / Tomb World / Mining World (former)			But Dust in the Wind (Short Story) — Victories of the Space Marines (Anthology)
Iygorn X	Ultima		Ultramar Subsector	Adeptus Titanicus: Shadow and Iron, pg. 14 - The Iron Crusade: Burning Sands, Cold Vengeance
Iylassa	Feudal World			White Dwarf 481, pg. 13
Izzakos	Penal World			The Strange Demise of Titus Endor (Short Story) — Hammer and Bolter 1, pg. 14
Jacero				Exhumed (Short Story)
Jagata VII	Death World			Dark Creed (Novel), Chapter Six
Jaggafall	Adeptus Astartes Homeworld	Obscurus	Home of the Blood Swords.	Codex: Space Marines (5th Edition), pg. 30
Jago	Fortress World	Pacificus		Only in Death (Novel), ch. 1
Jagram				Warhammer 40,000 5th Edition Rulebook, pg. 115
Jagun	Adeptus Astartes Homeworld / Feral World		Home of the Storm Reapers.	Codex: Space Marines (8th Edition), pg. 35
Jakart IV	Hive World			White Dwarf 263 (UK), pg. 24
Janus	Gas Giant	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Core Rulebook, pgs. 332-333
Japheth	Hive World			Iron Hands (Novel), Prologue, pgs. 9–10
Jared's World				Warp Spawn (Short Story)
Jaskan IV	Mining World			Void King (Novel), Chapter 29
Jemdal	Death World / Jungle World			White Dwarf July 2019, pg. 46
Jericho IV	Civilised World			White Dwarf 352 (UK), pg. 100 - Frontline Event Calendar: On Wings of Fire
Jhal Sak III				Codex: Astra Militarum (9th Edition), pg. 30 - Vresh Grenadiers
Jilator's Star	War World			Codex: Adepta Sororitas (9th Edition), pg. 48 - Vestments of Purity
Jindran			Discovered by the Imperium of Man in M37	Signal to Noise (Short Story)
Jollana	Civilised World		Renowned for its Great Librarium	Codex: Grey Knights (5th Edition), pgs. 18-19
Jones Crispin World	Hive World	Ultima	Located in the Eydolim System	Warhammer 40,000 6th Edition Rulebook, pgs. 384, 386, 389
Jorun's World			Invaded by Gorklaw's Waaagh! in 805.M41.	Apocalypse Reload, pgs. 76–87
Jorvon VIII				Dataslate: Reclusiam Command Squad (Background Book) — Reclusiam Command Squad
Jostero				Codex: Grey Knights (8th Edition), pg. 27 — Lord Kaldor Draigo
Joura	Civilised World	Segmentum Pacificus		Warhammer 40,000 4th Edition Rulebook, pg. 90
Jouran	Civilised World		Home to the Jouran Dragoons Imperial Guard.	[Help]
Jubal	Mining World	Obscurus		White Dwarf 291 (UK), pg. 96
Jula II	Tomb World (former)			Codex: Chaos Daemons (9th Edition), pg. 95 - Nurgle Datasheets
Junos	Mining World	Obscurus	Calixis Sector, Malfian Sub-sector, Fydae System	Dark Heresy Core Rulebook, pg. 288
Jumael IV	Agri World		Home to the Jumael Volunteers Imperial Guard.	Fifteen Hours (Novel), 22:57 hours Imperial Standard Time (Revised Real-Space Close Planetary Approximation), 20:14 hours Jumal IV Central Planetary Time (Western Summer Adjustment); Imperial Armour II - Ork, Eldar and Dark Eldar Vehicles for Warhammer 40,000, pg. 39
Jupiter	Gas Giant / Forge World / Mining World	Solar		The Horus Heresy Book One - Betrayal, pg. 18; Codex: Adeptus Custodes (8th Edition), pg. 29
Jurn	Imperial World	Tempestus		Codex: Chaos (2nd Edition), pg. 48
JXM A18Z	Forge World	Obscurus	Calixis Sector, Malfian Sub-sector	Dark Heresy Core Rulebook, pg. 288
K'ail		Ultima	Former Tau world that was conquered by the Ultramarines in 913.M41 during The Six Hour War.	Dataslate: Space Marines Strike Force Ultra (Background Book), pg. 13
Kaenis V				Index Astartes: Stalkers and Hunters — Renowned Stalkers - Deathless Saint of Days
Ka'hesku Atoll	Sept World (former)			Conquest 64 - Space Marines: Drop Pods
Kai	Forge World (former)	Obscurus		Codex: Chaos Space Marines (3rd Edition, 2nd Codex), pg. 20
Kail IX	Ocean World			Scars (Novel), Chapter 1
Kailith	Maiden World / Jungle World		Contains a Webway Portal	Warhammer 40,000 5th Edition Rulebook, pg. 237
Khai-Zhan	Agri World / Ocean World	Obscurus	Cadian Sector	Codex: Cityfight, pgs. 74–78
Kaladrone	Industrial World			White Dwarf 262 (UK), pg. 70
Kalatar				Blood Rite (Novella), Chapter 1
Kaledon	Feral World	Obscurus	Home to the Kaledon Hunters Imperial Guard.	Warhammer 40,000 5th Edition Rulebook, pgs. 138, 141
Kalf	Frontier World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Dark Heresy Core Rulebook, pg. 288
Kalgrathis				Rebel Winter (Novel), ch. 10
Kalidar I	Dead World	Tempestus		Baneblade (Novel), Interstitial (after Prologue), pgs. 17–18
Kalidar II	Dead World	Tempestus		Baneblade (Novel), Interstitial (after Prologue), pgs. 17–18
Kalidar III	Dead World	Tempestus		Baneblade (Novel), Interstitial (after Prologue), pgs. 17–18
Kalidar IV	Industrial World	Tempestus	Capital World of the Chiros Sector.	Baneblade (Novel), Interstitial (after Prologue), pgs. 17–18
Kalighast IV	Ice World			Codex: Death Guard (8th Edition), pg. 63
Kaliman IV				Index Astartes: Company Champions, pg. 6
Kalimant	Xenos World		Hrud nest	Ghazghkull Thraka: Prophet of the Waaagh! (Novel), Interrogation 1
Kalleth		Ultima	Nostramo Sector. Destroyed 011.M31, resources claimed by the Angels Vermillion 017.M31	Farseer (Novel), Chapter 18
Kallista	Industrial World			Farseer (Novel), Chapter 18
Kalmatir				Codex: Blood Angels (9th Edition), pg. 63 - Abilities
Kalor III				Black Crusade: The Tome of Fate, pg. 9
Kalto	Agri World	Obscurus	Askellon Sector	Dark Heresy Second Edition: Core Rulebook, pg. 322
Ka'mais	Tau Sept (former) / Dead World	Ultima		Codex: Tyranids (5th Edition), pgs. 18–21
Kamenka Troika			Collective name for the three satellite worlds of the planet Kamenka Ulizarna	A Thousand Sons (Novel), Chapter Two (pgs. 42–43)
Kanak	Feral World / Death World / Tomb World (former)	Obscurus	Home to the Kanak Skull Takers	Codex: Imperial Guard (3rd Edition, 2nd Codex), pg. 61; Codex: Imperial Guard (5th Edition), pg. 26
Kane's Sorrow	Death World	[[Ultima Segmentum|Ultima]		Imperial Knight Companion, pg. 39
Kantim Secondus				White Dwarf 469, pg. 122 — The Horus Heresy: Armour Through the Ages
Kanzuz IX		Obscurus	Desecrated by Fabius Bile.	Warlords of the Dark Millennium: Fabius Bile — To Walk The Stars; Codex: Chaos Space Marines (8th Edition), pg. 20
Kao-li	Forbidden World	Obscurus	Calixis Sector / Josian Reach	Dark Heresy Core Rulebook, pg. 289
Kappa Veldt				Flesh and Steel (Novel), Chapter 15
Kar Duniash	Segmentum Fortress	Ultima	Segmentum Command for Ultima Segmentum.	Battlefleet Gothic Rulebook, pgs. 86, 111
Karacallia	Gas Giant	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Core Rulebook, pgs. 320
Karadox				White Dwarf 53 (2015) — The Danse of Death
Karis Cephalon				White Dwarf 257 (UK), pg. 101-115
Karkariad	Hive World	Pacificus	Was occupied by the forces of Chaos.	The Sabbat Worlds Crusade (Background Book), Phase Four, pg. 57; Honour Guard (Novel), Chapter Three
Karnak II		Obscurus	Site where the Lightning STC patterns were found.	Imperial Armour - Imperial Vehicles for Warhammer 40,000, pg. 72
Karnat				Codex: Deathwatch (8th Edition), pg. 87 — Knights of the Long Vigil
Karnax 17				Imperial Armour Volume Two (Second Edition), pg. 164
Karrik	Death World / Ice World	Obscurus		Black Industries' Calixis Sector: Karrik (saved archive page, dated 6 June 2008, last accessed 9 July 2024)
Karygpha	War World / Industrial World			Codex: Aeldari (9th Edition), pg. 67 - Colours of the Asuryani
Kasr Fuul				Last Step Backwards (Short Story)
Kastorel-Novem	Ork World / Mining World (former)	Ultima	Base of Waaagh! Garaghak; now known as Mekslag-Ikks	Imperial Armour Volume Eight - Raid on Kastorel-Novem, pg. 75
Kataris	Dead World, former Agri World	Obscurus		Fateweaver (Novella) — Architect of Fate (Anthology), Chapter 1, pgs. 222–223
Kathalon	Daemon World	Obscurus	Disputed between forces of Tzeentch and Khorne	Codex: Chaos Daemons (4th Edition), pg. 18
Kathur	Shrine World	Obscurus		[Help]
Kato	Shadow World	Ultima		Codex: Imperial Guard (5th Edition), pgs. 22, 26-27
Kattyak				Blood of Asaheim (Novel), Chapter One
Kaurava I	Civilised World (former) / Ork World	Ultima	Centre of the Kaurava system.	Dawn of War: Soulstorm
Kaurava II	Civilised World (former) / Ork World	Ultima		Dawn of War: Soulstorm
Kaurava III	Tomb World (former) / Ork World	Ultima		Dawn of War: Soulstorm
Kaurava IV	Civilised World (former) / Ork World	Ultima		Dawn of War: Soulstorm
KCX-1288	Xenos World	Obscurus	Saruthi world.	Xenos (Novel), ch. 18
Keletros	Adeptus Astartes Homeworld	Solar	Home of the Skull Bearers.	Codex: Space Marines (5th Edition), pg. 30
Ke'lshan	Tau Sept	Ultima	Founded during the Second Sphere of Expansion; also spelt Kel'shan	Codex: Tau (3rd Edition), pgs. 18, 59
Kenov III	Death World	Obscurus	Calixis Sector, Malfian Sub-sector	Dark Heresy Core Rulebook, pg. 288
Kentaur				First and Only (Novel), A Memory: Khedd 1173, Sixteen Years Earlier (Interstitial between Parts Five and Six)
Kessae	Frontier World	Obscurus	Calixis Sector, Malfian Sub-sector, Fydae System	Dark Heresy Core Rulebook, pg. 288
Keylek	Xenos World		Homeworld of the Keylekid.	Horus Rising (Novel), Part One, Chapter Nine, pgs. 172–173
Khai-zhan	Agri World / Ocean World	Obscurus	Location of the Khai-Zhan Uprising in 968.M41	Codex: Cityfight, pgs. 74–78
Khedd 1173			Imperial	First and Only (Novel), A Memory: Khedd 1173, Sixteen Years Earlier (Interstitial between Parts Five and Six), Part Six, Chapter Sixteen
Khelrantyr	War World / Tomb World			Warhammer Combat Cards, The Devourer - campaign description
Khendrel IV	War World / Industrial World			Dark Angels and Death Guard do battle at Warhammer World
Khongkotan	Feral World			Redemption Corps (Novel), Chapter 4, pg. 101
Khoraj	Adeptus Astartes Homeworld	Tempestus	Homeworld of the Iron Champions Chapter.	Imperial Armour Volume Two - Second Edition, pg. 8
Khur	Dead World	Segmentum Pacificus	Subjected to Exterminatus during the Great Scouring.	The First Heretic (Novel), ch. 2
Khymara	Death World / Mining World	Ultima		Imperial Armour Volume Nine - The Badab War - Part One, pg. 6
Kiavahr	Adeptus Astartes Homeworld / Hive World / Forge World	Tempestus	Home of the Raven Guard.	The Horus Heresy Book Three - Extermination, pg. 133
Kicury	Mining World		Imperium Nihilus.	Pilgrims of Fire (Novel), Part Four, Chapter Two
Kimmeria	Feral World / Adeptus Astartes Recruiting World	Ultima	Dark Angels recruiting world.	Index Astartes I, pgs. 18–22
Kinog	Paradise World	Obscurus	Calixis Sector, Malfian Sub-sector	Dark Heresy Core Rulebook, pg. 288
Kiskayde				Misbegotten (Short Story)
Klaat	Hive World		Klaat System.	The Helwinter Gate (Novel), prologue
Klaihn	Ice World / Xenos World		Location of a temple dedicated to the Aeldari goddess Isha.	Dataslate: Eldar Ghost Warriors (Background Book) — Timeline — Dishonourable Alliances
Klebendor III				White Dwarf 302, pg. 85
Kleimoran				Scars (Novel), Chapter 2
Klithaine	Exodite World (former) / Paradise World (former)		The Aeldari population of the planet were killed and devoured by the Wrath Chaos Space Marines warband.	Codex: Khorne Daemonkin (7th Edition) — Slaughter Without End - Paradise Lost
Klybo	Dead World	Obscurus	Calixis Sector, Markayn Marches	Dark Heresy Core Rulebook, pg. 288
Knarr			Location of the Rusthunt	Codex: Space Marines (7th Edition) — The Chronicles of Heroes — The Rusthunt
Ko'an Prime		Ultima	T'au Empire warzone.	War Zone Damocles: Kauyon, pg. 118
Kodiak Prime				Faith and Fire (Novel), Chapter 5, pgs. 100–101
Kogen's Toil	Forge World			Codex: Astra Militarum (8th Edition), pg. 12 — Astra Militarum Company Organization: The Mechanicus and the Guard
Kokytos	Ice World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Enemies of the Imperium, pg. 14
Kol	Quarantined World	Ultima Segmentum	Part of Signus Cluster	Fear to Tread (Novel) - Chapter Five
Kol'hoosi			T'au Empire troops fought Orks here.	Altar of Maws (Short Story)
Kolagar				Deathwatch: The Flesh of the Angel (Short Story)
Komaris		Solar	Moebian Domain	Warhammer 40,000: Darktide
Kommitzar	Penal World	Obscurus	Calixis Sector / Hazeroth Sub-Sector	Dark Heresy Core Rulebook, pg. 289
Kollace		Obscurus	Gothic Sector	Warhammer 40,000 4th Edition Rulebook, pg. 239
Kommitzar	Penal World	Obscurus	Calixis Sector / Hazeroth Sub-Sector	Dark Heresy Core Rulebook, pg. 289
Koorqosan				The Horus Heresy Book Eight - Malevolence, pg. 12 - Selected Encounters of Esoteric Phenomena
Koradrum	Tomb World	Obscurus	Scarus Sector	Born Unto Us (Short Story)
Koralkal		Ultima		Codex: Imperial Guard (5th Edition), pg. 27 - A Galaxy at War
Korkos	War World			Codex: Aeldari (9th Edition), pg. 58 - Colours of the Asuryani
Korlax V	War World / Industrial World			Warhammer 40,000 9th Edition Rulebook, pgs. 71-72
Korlin II				Codex: Chaos Daemons (9th Edition), pg. 12 - Khorne
Korzemayar II	War World / Mining World			Codex: Necrons (9th Edition), pg. 75 - Crusade Rules
Kossok's World				Codex: Imperial Knights (8th Edition), pg. 116 — Heirlooms of the Noble Houses: The Hunter's Eye
Kotrax	Ultima			Codex: Imperial Guard (5th Edition), pg. 27 - A Galaxy at War
Kovalic II		Ultima	Attacked by Aeldari pirates - presumably Dark Eldar. The resisting soldiers were killed, other inhabitants were taken into slavery.	Imperial Armour II - Ork, Eldar and Dark Eldar Vehicles for Warhammer 40,000, pgs. 5, 25
Krachordia	Jungle World / Feral World (former)			Codex: Thousand Sons (8th Edition), pg. 31 - Annals of the Arcane: The Beast Within
Kragh	Knight World		Rediscovered in 112.M41 after the abating of a localised Warp Storm that had raged in the region for over twenty millennia.	Codex: Imperial Knights (6th Edition) — The Time of Ending — First Contact
Krajnov				Codex: Space Marines (9th Edition), pg. 84 - Insignium Astartes
Kralos Prime				White Dwarf 489, pg. 110 — The Unforgiven
Krandor III	Dead World	Obscurus	Suffered a massive Chaos Cult-led rebellion in 853.M41.	Warhammer 40,000 6th Edition Rulebook, pg. 173
Kreinaath		Obscurus	Word Bearers-held planet, near the Eye of Terror	Warhammer 40,000: Chaos Gate — Campaign Mission 13
Kreneddis	War World / Hive World			Codex: Chaos Space Marines (9th Edition), pg. 56 - Insignium Traitoris
Krieg	Death World / Hive World (former)	Tempestus	Home to the Death Korps of Krieg Imperial Guard.	Warhammer 40,000 5th Edition Rulebook, pg. 116
Krogg's World	War World	Ultima		Codex: T'au Empire (9th Edition), pg. 48 — Insignia of Empire
Kromlok			Home to the Kromlok Dangler	Tyranids: Forgotten Fleets
Kronite	Feudal World	Obscurus		Warhammer 40,000 5th Edition Rulebook, pg. 138
Kronus	Tomb World / Civilised World	Ultima		Warhammer 40,000: Dawn of War - Dark Crusade — Archive screen for Pavonis province
Krourk	Mining World	Solar	Recruiting grounds for the Krourk Ogryn Auxilia.	Codex: Armageddon (3rd Edition), pg. 5
Kroxis				Necropolis (Novel), Chapter Nine
Kruun		Ultima	Nostramo Sector. Destroyed 012.M31	The Horus Heresy Book Six - Retribution, pg. 131
Ksi'm'yen	Tau Sept	Ultima	Founded during the Third Sphere of Expansion	Codex: Tau Empire (4th Edition), pg. 19
Kudrun	Frontier World	Obscurus	Calixis Sector, Josian Reach	Dark Heresy Core Rulebook, pg. 289
Kulth	War World	Obscurus	Calixis Sector / The Periphery / Spinward Front. Contested between Imperial and Ork Forces.	Dark Heresy Core Rulebook, pg. 288
Kuluth	War World	Obscurus	Calixis Sector / Malfian Sub-sector	Dark Heresy Core Rulebook, pg. 288
Kutgaard	Bastion World			Codex: Dark Angels (9th Edition), pg. 29 — Insignium Calibanus
KW-9	Gas Giant	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Enemies of the Imperium, pg. 40
Lackan XV				White Dwarf 260 (UK) pg. 71
Lacusta	Feral World	Obscurus	Calixis Sector, Drusus Marches	Dark Heresy Core Rulebook, pg. 288
Laedira	Jungle World			Codex: Craftworlds (8th Edition), pg. 52 — Dire Avengers
Lagrans Alpha and Beta	Death World			White Dwarf 481, pg. 11
Laius Rift	Death World			Laius Rift (saved archive page, dated 11 January 2007, last accessed 9 July 2024)
Lalinta Prime	Civilized World	Tempestus		Warhammer 40,000 5th Edition Rulebook, pg. 138
Lambs World				Index Imperialis: Apocrypha, pg. 9
Lammas			Site of the Lammas Campaign.	Imperial Armour Volume One - Imperial Guard and Imperial Navy, pg. 29
Landariel	War World / Maiden World			Codex: Aeldari (9th Edition), pg. 65 - Colours of the Asuryani
Landunder	Hive World	Obscurus	Calixis Sector / Malfian Sub-sector	Dark Heresy Core Rulebook, pg. 288
Lanorra	Hive World	Obscurus		Warhammer 40,000 5th Edition Rulebook, pg. 138
Lassiv	Dead World		Hecuba Sector	Dark Heresy: Disciples of the Dark Gods, pg. 235
Lastrati	Hive World			Warhammer 40,000 3rd Edition Rulebook, pg. 114
Last Reach				Codex: Imperial Guard (3rd Edition, 1st Codex), pg. 10
Lathes	Forge World	Obscurus	Collective name for the trio formed by Hadd, Hesh, and Het	Dark Heresy Rulebook, pg. 324
Lavantia	Adeptus Astartes Homeworld, Hive World, Desert World	Tempestus	Homeworld of the Night Swords Space Marine Chapter.	Imperial Armour Volume Two - Second Edition, pg. 8; Deathwatch: Rites of Battle, pg. 43
Laymon		Tempestus	Also known as Amarah III	Imperial Armour Volume Twelve - The Fall of Orpheus, pg. 42
Lector's Lowell	Forge World	Ultima		Warhammer 40,000 6th Edition Rulebook, pgs. 384, 386–387, 389
Lehyde Ten	Frontier World	Obscurus	Calixis Sector, Adrantis Nebula	Dark Heresy Core Rulebook, pg. 288
Lentrel Prime	Forge World	Ultima	Vidar Sector. Contact lost in 925.M41	Warhammer 40,000 5th Edition Rulebook, pg. 128
Lesh	Agri World			White Dwarf 481, pg. 10
Lesser Nox	Death World			Redemption Corps (Novel), Part I, Chapter Six
Lethe Eleven	Ork World, formerly Hive World	Obscurus		White Dwarf 287 (UK), pg. 39
Lethys				Fanatic Online #17 - Fleshing Out Your Nemesis
Letum	Frontier World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Core Rulebook, pgs. 332-333
Levion Gamma	Hive World (former)			Honours (Short Story)
Liberty V				Warhammer 40,000 4th Edition Rulebook, pg. 228
Libethra	Former Adeptus Astartes Homeworld, destroyed	Tempestus	Former Homeworld of the Angels Revenant.	Imperial Armour Volume Twelve - The Fall of Orpheus, pg. 32
Ligeria				The Strange Demise of Titus Endor (Short Story) — Hammer and Bolter 1, pg. 16
Lilia Mundi	Feral World / Adeptus Astartes Recruiting World			White Dwarf 324 (UK), pgs. 42–51 — Iron Will, Iron Blood
Lima Rogan				Codex: Sisters of Battle (2nd Edition), pg. 41
Limnus Epsilon	Imperial World			Faith and Fire (Novel), Chapter 5, pg. 42
Lind	Hive World	Obscurus	Calixis Sector, Malfian Sub-sector	Dark Heresy Core Rulebook, pg. 288
Lissandro			Overrun by Daemons of Tzeentch	Codex: Chaos Daemons (6th Edition), pgs. 36–37
Llagris				Warlords of the Dark Millennium: Huron Blackheart, pg. 17
Lliax	Forge World			Hand Elect (Short Story)
Lo	Hive World	Obscurus		Black Industries' Calixis Sector (saved archive page, dated 17 February 2008, last accessed 9 July 2024)
Lodius		Pacificus		The Armour of Contempt (Novel), Walking Glory Road
Lolita	Agri-World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Core Rulebook, pgs. 332-333
Londal Minor V				Imperial Armour Volume Eleven - Second Edition: The Doom of Mymeara, pg. 109
Lorek	Forest World			Blood of Iax (Novel), Chapter 4
Lorentian IV				Codex: Imperial Guard (3rd Edition, 1st Codex), pg. 10
Loriar	Death World	Tempestus		Warhammer 40,000 5th Edition Rulebook, pg. 138
Lorin Alpha	Adeptus Astartes Homeworld	Solar	Homeworld of the Fire Angels Space Marine Chapter.	Imperial Armour Volume Nine - The Badab War - Part One, pg. 94
Lorin Sigma		Solar		The Horus Heresy Book Five - Tempest, pg. 71
Lorn V	Ice World			Dawn of War: Winter Assault
Loqiit	Xenos World	Pacificus	Homeworld of the Q'orl.	Xenology (Background Book), pg. 59
Loss	Feral World	Obscurus	Calixis Sector, Malfian Sub-sector	Dark Heresy Core Rulebook, pg. 288
Lostok		Ultima	The source of the Lostok 23rd, an Imperial Guard Regiment of Gland War Veterans.	Inquisitor Rulebook, pg. 111
Lotus	Daemon World	Ultima	The Maelstrom. Devoted to Slaanesh.	Daemon Worlds: The Maelstrom — Lotus
Lucid Prime	Shrine World		Place of the Honour's End incident.	Codex: Space Wolves (5th Edition), pg. 19 — War in the Sea of Stars: Honour's End
Lucifere II	Jungle World			Warhammer 40,000: Kill Team Core Manual (2nd Edition), pg. 12 — Theatres of War
Lucius	Forge World	Obscurus		Imperial Armour Volume One - Imperial Guard and Imperial Navy, pg. 8
Luggnum	Mining World	Obscurus	Calixis Sector, Golgenna Reach	Dark Heresy Core Rulebook, pg. 288
Lukekin	Hive World			Warhammer Siege, pg. 95 — Example Scenarios: A Rough Time at the Sector House
Lukius	Feudal World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Core Rulebook, pgs. 332-333
Luther Mcintyre		Tempestus		Only War: Core Rulebook, pg. 320
Luther Macintyre IX	Death World / Desert World / Tomb World (hypothesized)	Tempestus	Homeworld of the Ambull Xenos	Warhammer 40,000: Rogue Trader, pg. 207
Luxor (Gothic Sector)	Imperial World	Obscurus		[Help]
Luxor (Helioret Sector)	Industrial World	Ultima	Location of the Luxor Uprising in 812.M41	Imperial Armour Volume Nine - The Badab War - Part One, pg. 119
Luyten's World				Hunt for Voldorius (Novel), Chapter 9
LXD-9768	Archive World		Part of the Libraria project.	Red Fury (Novel), Chapter 5
Lynia				Legacy (Novel), Chapter 4
Ma'Caellia			Infested by Genestealers, hit by Exterminatus	Space Hulk (video game)
Maccabeus Quintus	Shrine World	Obscurus	Calixis Sector / Drusus Marches	Dark Heresy Core Rulebook, pg. 288
Macharia (Donia Magna System)	Shrine World	Pacificus	Originally named Donia. Birthplace of Macharius.	White Dwarf 240 (UK), pg. 32
Macharia (Cadian System)	Hive World (former) / Dead World	Obscurus		Codex: Eye of Terror (3rd Edition), pg. 24
Machiun		Ultima	Training ground for Adeptus Arbites recruits	Crossfire (Novel), Chapter 2
Macragge	Adeptus Astartes Homeworld	Ultima	Homeworld of the Ultramarines, Capital World of Ultramar.	Codex: Space Marines (8th Edition), pg. 25
Maesa	War World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Core Rulebook, pgs. 332-333
Magdelene IX	Ork World	Tempestus		Imperial Armour Volume Eight - Raid on Kastorel-Novem, pg. 75
Magnax V				Munitorum: Vortex Missiles (Background Book), pg. 3
Magnos Omicron	Forge World	Solar		[Help]
Magog	Chaos Fortress World, former Agri World	Ultima	Possibly orbited by a Blackstone Fortress	Deathwatch: The Achilus Assault, pg. 76
Magog	Obliterated World		Formerly a Warp-affected world like Prospero and Neva.	Faith and Fire (Novel), ch. 13
Magogue	Tomb World / Ocean World (former) / Industrial World (former)			Codex: Adeptus Mechanicus (8th Edition), pgs. 34–35 — The Quest for Knowledge: The Unknowable
Magrapolis	Hive World			White Dwarf 481, pg. 12
Mahr'douk	Imperial World	Obscurus		Codex: Imperial Guard (5th Edition), pg. 26
Makron V	Death World			White Dwarf 481, pg. 11
Malanthar VII				Apocalypse (2013), pg. 126
Malbolge IV				Iron Hands (Novel), Chapter 2, pg. 33
Malfi	Hive World	Obscurus	Calixis Sector, Malfian Sub-sector	Dark Heresy Core Rulebook, pg. 288
Malice	War World	Obscurus	Calixis Sector, Hazeroth Sub-Sector. Frontline of the Wrack War.	Dark Heresy Core Rulebook, pg. 289
Malum	War World			Best Death Wins (Short Story) - Inferno! (2020) Vol.5
Malodrax	Fortress World (former)		Iron Warriors world, subjected to Exterminatus in 971.M41	Codex: Space Marines (5th Edition), pg. 91
Malvolion	Agri World (former) / Dead World			The Fall of Malvolion (Short Story)
Mancora[1]	Adeptus Astartes Homeworld[1] / Feudal World[2] / Knight World[3]	Ultima[1]	Home of Howling Griffons.[1]	[1]
Mandragora	Tomb World	Ultima	Crownworld of the Sautekh Dynasty.	Codex: Necrons (5th Edition), pg. 14
Maner				Cadia Stands (Novel), Part 3, ch. 4
Mannia-4				Warhammer Adventures: Warped Galaxies - Attack of the Necron Extract - Chapter 3
Manus Cenita	Hive World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Core Rulebook, pgs. 332-333
Manzipor	Civilised World	Ultima		First and Only (Novel) — The Founding (Omnibus), A Memory: Manzipor, Thirty Years Earlier (Interstitial between Parts Four and Five)
Mara	Forbidden World / Ice World	Obscurus	Calixis Sector / Hazeroth Sub-Sector	Dark Heresy Core Rulebook, pg. 289
Marfak	Desert World			Warhammer 40,000: Chaos Gate — Target of Opportunity: Marfak
Mariach		Ultima		Bad Blood (Short Story)
Marioch	Frontier World	Obscurus	Calixis Sector / Adrantis Nebula	Dark Heresy Core Rulebook, pg. 289
Mars	Forge World / Fortress World	Solar	Center of the Adeptus Mechanicus.	Imperial Armour Volume One - Imperial Guard and Imperial Navy, pg. 8
Marunda II	Agri World			Codex: Militarum Tempestus (6th Edition) — Regiments of the Militarum Tempestus
Marzan	Feudal World			Warhammer Siege, pg. 94 — Example Scenarios: A Gift from the Past
Mas			Thivian System	Dante (Novel), Chapter Nineteen
Masali	Desert World (former) / Agri World	Ultima	One of the nine worlds of Ultramar.	Codex: Space Marines (8th Edition), pg. 25
Mataras IV	Agri World (former) / Dead World	Ultima	Subjected to Exterminatus in 920.M37	Deathwatch Core Rulebook, pg. 39
Maypax	Death World			The 19'ers (Graphic Novel) - Warhammer Monthly 62
Medredax			Its population committed ritual suicide, incited by the Daemon Cherubael masquerading as a prophet.	White Dwarf 260 (UK), pg. 70
Medrengard	Daemon World	Obscurus	Current homeworld of the Iron Warriors	Dead Sky, Black Sun (Novel) — The Ultramarines Omnibus, Prologue, pgs. 524–528
Medusa	Hive World	Obscurus	Superseded in the lore by Medusa IV	Farseer (Novel), Chapter Four
Medusa IV	Adeptus Astartes Homeworld / Waste World / Death World (unofficial)	Obscurus	Home of Iron Hands.	First Founding (Background Book), pgs. 196-198 — Iron Hands: Home World
Medusa V	Mining World (former) / Dead World	Ultima	At the center of The Fall of Medusa V.	The Fall of Medusa V (booklet), pgs. 6-7
Megheim	Hive World			Warhammer 40,000 7th Edition Rulebook — Unimaginable Scale
Megiddio Primus	Death World			The Citadel Journal 22, pgs. 49–55, 59
Mekbuda	Jungle World	Obscurus	Near the Eye of Terror.	Warhammer 40,000: Chaos Gate — Target of Opportunity: Mekuba
Mekslag-Ikks	Ork World	Tempestus	Formerly known as Kastorel-Novem	Imperial Armour Volume Eight - Raid on Kastorel-Novem, pg. 75
Melchior			Stripped of all human life by Nephilim just before the Great Crusade. Later conquered by the Blood Angels and Luna Wolves.	Fear to Tread (Novel), Prologue: Melchior
Melqart	Feral World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Core Rulebook, pgs. 332-333
Melior-Tertia	Forge World	Ultima		The Honoured (Novella), Chapter 1
Menazoid Epsilon	Death World	Pacificus		First and Only (Novel) — The Founding (Omnibus), Part Five, Chapter One
Mendona	Ice World / War World	Ultima		Dawn of War: Dark Crusade, Polar Cap (Map Description)
Mephisto V				Codex: Chaos Space Marines (3rd Edition, 2nd Codex), pg. 6
Mercia				White Dwarf 262 (UK), pg. 101
Merga	Jungle World			Warhammer 40,000: Chaos Gate — Target of Opportunity: Merga
Merida		Ultima	After the Necron attack in 666.M40 all Imperial colonists were gone without trace.	Battlefleet Gothic: Armada (Book), pg. 72
Meridian	Hive World	Ultima	Capital world of Subsector Aurelia	Warhammer 40,000: Dawn of War II, Single-player campaign
Merov	Hive World	Obscurus	Calixis Sector, Golgenna Reach	Dark Heresy Core Rulebook, pg. 288
Merovincha	Hive World	Obscurus		Dark Heresy: The Radical's Handbook, pg. 101
Merrand				Rebel Winter (Novel), ch. 12
Mertiol	Colony World			Garro: Shield of Lies (Audio Book)
Messia	Death World	Obscurus	Affiliation: Chaos	Black Crusade: The Tome of Blood, pgs. 102–104
Metalica	Forge World	Ultima	Home to the Legio Metalica	Imperial Armour Volume One - Imperial Guard and Imperial Navy, pg. 8
Methalor	Hive World	Solar		Codex: Sisters of Battle (2nd Edition), pg. 41
Methusela	Hive World	Ultima		Warhammer 40,000 8th Edition Rulebook, pg. 166 — The Blood Crusade
Metron	Civilized World / Mining World			Warhammer World - Investigation on Glomus Campaign Weekend (Event) (saved archive page, dated 20 September 2016, last accessed 9 July 2024)
Mezoa	Forge World	Obscurus		Imperial Armour Volume One - Imperial Guard and Imperial Navy, pg. 8
Mezoa XV				Imperial Armour Volume Thirteen - War Machines of the Lost and the Damned, pg. 22 — The Martyred Sons
MG-Dyel		Ultima		Crossfire (Novel), Chapter 2
Milarro				Snares & Delusions (Short Story)
Minea	Hive World	Ultima		Warhammer 40,000 5th Edition Rulebook, pg. 115
Minerva	Civilised World	Solar	Homeworld of the Minervan Tank Legions	Codex: Armageddon (3rd Edition), pg. 5
Miral II	Jungle World	Tempestus	Saved from Hive Fleet Leviathan by the Imperial Fists Chapter.	Codex: Space Marines (7th Edition) — The Chronicles of Heroes - The Defense of Miral II
Mis'bah				The Bloodied Rose (Novella), Chapter 1
Mithra				Warhammer 40,000: Carnage
Mithron	Shrine World			Hard Choices 'What happened on Algol?'
M'khand	Forge World	Pacificus		Imperial Armour Volume One - Imperial Guard and Imperial Navy, pg. 8
M'Laar XIII	Daemon World		Fell to Khornate forces in M34	White Dwarf 246 (UK), pgs. 60–61
MMX 215	Forbidden World	Obscurus	Calixis Sector / Malfian Sub-sector	Dark Heresy Core Rulebook, pg. 288
Modren Prime	Civilized World	Obscurus	Second planet of Modren’s Realm.	Rogue Trader: Twilight Crusade, pg. 34
Moebius	Tomb World	Ultima	Crownworld of the Nekthyst Dynasty.	Codex: Necrons (7th Edition), pg. 13
Mogahl Prime				White Dwarf 263 (UK) pg. 78
Moirae	Forge World		Destroyed in the Moirae Schism.	Imperial Armour Volume Ten, pg. 97
Moltova	Hive World	Ultima		Warhammer 40,000 5th Edition Rulebook, pgs. 138-139
Monrass	Feral World	Obscurus	Calixis Sector / Drusus Marches	Dark Heresy Core Rulebook, pg. 288
Monterosso		Tempestus	Caligari Sector	Silent Hunters (Novel), Part 1, ch. 1, ch. 7
Montsegnur	Adeptus Astartes Homeworld	Tempestus	Homeworld of the Red Hunters Space Marine Chapter.	Imperial Armour Volume Two - Second Edition, pgs. 8–9
Mordant Prime	Mining World	Tempestus	Home to the Mordant Acid Dogs Imperial Guard.	Codex: Astra Militarum (8th Edition) — A Galaxy of War
Mordax	Forge World (former) / Ork World	Obscurus	Captured during the Green Kroosade, now known as Moredakka	White Dwarf 287 (UK), pg. 39
Mordian	Hive World	Obscurus	Home to the Mordian Iron Guard Imperial Guard Regiments.	Codex: Imperial Guard (5th Edition), pg. 16
Mordriana III	Feral World / Jungle World	Obscurus		Warrior Brood (Novel) — Kill Squad: A Deathwatch Omnibus, Chapter 10, pgs. 139–140
Moredakka	Forge World / Ork World	Obscurus	Captured during the Green Kroosade, formerly known as Mordax	White Dwarf 287 (UK), pg. 39
Moriorum	Adeptus Astartes Homeworld	Tempestus	Homeworld of the Dark Eagles Space Marine Chapter.	Imperial Armour Volume Two - Second Edition, pgs. 8–9
Morisha		Ultima		Codex: Assassins (3rd Edition), pg. 12
Morlex	War World / Dead World / Mining World / Paradise World (former)			Warhammer World Event - Clash of Iron
Morlond	Fortress World	Pacificus	Contested between Imperial and Chaos forces during the Sabbat Worlds Crusade	Honour Guard (Novel), Epigraph before Chapter One
Mornax	Mining World	Solar	World of the Moebian Domain.	Warhammer 40,000: Darktide - Character Creation - Home World: Mornax
Morpheon	Daemon World	[[Ultima Segmentum[Ultima]]	The Maelstrom. Devoted to Tzeentch.	Daemon Worlds: The Maelstrom — Morpheon
Morrigar	Hive World (former) / Tomb World (former) / Dead World			Codex: Necrons (5th Edition), pg. 25 — A New Epoch Begins: The Ruin of Morrigar
Morrigor	Tomb World			Hammer and Anvil (Novel), Chapter Twelve, pg. 137
Mortikah VII	Adeptus Astartes Homeworld	Pacificus	Homeworld of the Guardians of the Covenant	Codex: Dark Angels (6th Edition), pg. 26
Mortressa	Death World	Obscurus	Calixis Sector, Adrantis Nebula	Dark Heresy Core Rulebook, pg. 288
Morwen VI	Dead World	Obscurus	Calixis Sector, Adrantis Nebula. Orbitted by the Hippocrasian Agglomeration.	Dark Heresy Core Rulebook, pg. 288
Mosul	Frontier World	Obscurus	Calixis Sector, Markayn Marches	Dark Heresy Core Rulebook, pg. 289
Mpandex	Forge World	Obscurus		Imperial Armour Volume One - Imperial Guard and Imperial Navy, pg. 8
Mu'gulath Bay	T'au Sept / Hive World (former)	Ultima	Formerly known as Agrellan, captured during the Third Sphere of Expansion	Codex: Tau Empire (6th Edition), pgs. 32–34
Muiral'lathar	War World / Maiden World			Codex: Chaos Space Marines (9th Edition), pg. 59 - Insignium Traitoris
Mundus Planus	Adeptus Astartes Homeworld / Feral World	Ultima	Also known as Chogoris; home to the White Scars.	Codex Supplement: White Scars (8th Edition), pgs. 8-9
Mundus Pyra	Adeptus Astartes Homeworld	Ultima	Home to the Fire Lords.	Codex: Space Marines (5th Edition), pg. 30
Munsk	Feral World	Obscurus	Calixis Sector, Josian Reach	Dark Heresy Core Rulebook, pg. 289
Murder	Death World		Originally designated One-Forty-Twenty, homeworld of the Megarachnids	Horus Rising (Novel), Part Two, chs. 1-2
Murzim	Desert World			Warhammer 40,000: Chaos Gate — Target of Opportunity: Murzim
Myosan	Agri World		Diosis System	Codex: Militarum Tempestus (6th Edition), pg. 50
Myr	Death World	Tempestus		Warhammer 40,000 5th Edition Rulebook, pg. 138
Mysibis				Hunt for Voldorius (Novel), Chapter 1, pg. 11
Nachorn	War World			Codex: Harlequins (8th Edition), pg. 8 — The Fall of the Aeldari
Nagathar	Tomb World	Ultima		Codex: Necrons (5th Edition), pg. 82
Nahme	Mining World	Obscurus	Calixis Sector / Malfian Sub-sector	Dark Heresy Core Rulebook, pg. 288
Nairuil	War World			Codex: Chaos Space Marines (9th Edition), pg. 67 - Insignium Traitoris
Na'jadar	Desert World			Iron Hands (Novel), Chapter 5, pg. 68
Nalahsa				The Purge (Novella), Chapter 5
Nalibraxis II	Jungle World			Codex: Imperial Knights (6th Edition) — The Time of Ending — Disaster on Nalibraxis II
Nanthrax III	Adeptus Astartes Recruiting World		Source of Aspirants for the Mantis Warriors	Warrior Brood (Novel) — Kill Squad: A Deathwatch Omnibus: Chapter 1
Naogeddon	Dead World			Codex: Necrons (3rd Edition), pgs. 6-7
Naos	Jungle World			Warhammer 40,000: Chaos Gate — Target of Opportunity: Naos
Natol Prime		Tempestus		Deliverance Lost (Novel), Chapter 10
ND0/K4	Mining World	Obscurus	Calixis Sector / Golgenna Reach	Dark Heresy Core Rulebook, pg. 289
N'dras	Tau Sept	Ultima	Established during the Second Sphere of Expansion	Codex: Tau Empire (4th Edition), pg. 18
Nachtwald	Adeptus Astartes Recruiting World		Under Angels of Vengeance control, used primarily by Angels of Absolution	Dataslate: Cypher, pgs. 23–25
Nebrus IX	Dead World			Redemption Corps (Novel), Chapter 4
Necris	Adeptus Astartes Homeworld	"Beyond Imperial boundaries"	Home of the Marines Exemplar.	Codex: Space Marines (5th Edition), pg. 3
Necromunda	Hive World / Adeptus Astartes Recruiting World	Solar	Formerly known as Araneus Prime	White Dwarf 130 (UK), pgs. 10-25
Ne'deble		Solar		The Horus Heresy Book Five - Tempest, pg. 71
Nedicta Secundus	Cardinal World			The Long Games at Carcharias (Short Story) — Victories of the Space Marines (Anthology), pg. 81
Nekkar	Forge World		Captured by the Word Bearers until Captain Kruger's Ultramarines Company defeated them.	Warhammer 40,000: Chaos Gate — Target of Opportunity: Nekkar
Nemesis Tessera		Obscurus	Site of an Inquisition fortress.	Codex: Eye of Terror (3rd Edition), pg. 24
Neo Baku	Hive World	Ultima		Warhammer 40,000 5th Edition Rulebook, pg. 138
Neptune	Imperial World	Solar		The Horus Heresy Book One - Betrayal, pg. 18
Neutra	Adeptus Astartes Homeworld (former)	Obscurus	Home of the Relictors until they became fleet based	Codex: Space Marines (5th Edition), pg. 30
New Badab	Chaos Space Marine Homeworld	Ultima	Current stronghold of the Red Corsairs.	The Skull Harvest (Short Story)
New Bylar		Obscurus		Regia Occulta (Short Story)
New Klondike				Index Imperialis: Apocrypha, pg. 47
New Muin			Population sacrificed to the Blood God.	Deathwatch: Mark of the Xenos, pg. 101
Newfound	Adeptus Astartes Homeworld	Ultima	Home of the Genesis Chapter.	Codex: Space Marines (6th Edition) (e-book), Ultramarines Successor Chapters
Newseam	Mining World	Ultima	Home to the Cult of the Rusted Claw.	Codex: Genestealer Cults (7th Edition) — Genestealer Cults of the Imperium
Nhadakin				War Zone Damocles: Mont'ka — Task Force Retribution Organization
Nihilas	Adeptus Astartes Homeworld	Ultima	Home of the Death Strike.	Codex: Space Marines (5th Edition), pg. 30
Nimboru	Ice World / War World			Codex: Chaos Space Marines (8th Edition) Updated, pg. 102 — Scions of Chaos
Nimbosa	Industrial World	Ultima	Focus of the Nimbosa Crusade.	Warhammer 40,000: Cities of Death, pgs. 56–57
Nishagar				Blood of Asaheim (Novel), Chapter One
Nithander				Echoes of Eternity (Novel), Chapter Seventeen
Nocturne	Adeptus Astartes Homeworld / Death World	Ultima	Home of the Salamanders.	Index Astartes IV, Promethean Warriors
Nonimax	Hive World	Pacificus	Liberated from Chaos forces in 765.M41	The Sabbat Worlds Crusade (Background Book), Phase Four, pg. 56
Nomanus	Industrial World			Warhammer 40,000: Chaos Gate — Target of Opportunity: Nomanus
Norada VII	War World	Solar		Codex: Astra Militarum (9th Edition), pgs. 10-11
Norcarmos V		Obscurus	Calixis Sector	Dark Heresy: Creatures Anathema, pg. 50
Nostramo	Destroyed/ Adeptus Astartes Homeworld (former) / Hive World (former)	Ultima	Nostramo Sector. Former home world of the Night Lords.	Index Astartes II, Bringers of Darkness (pg. 27)
Nove Shendak			Also known as World Eight-Two-Seventeen	After Desh'ea (Short Story)
Nox	Death World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Core Rulebook, pgs. 332-333
Nox Alpha	Death World	Solar	Moebian Domain Fringe world where the Moebian 6th regiment succumbed to Nurgle corruption and turned traitor.	Warhammer 40,000: Darktide
Nullivar	Forge World			Codex: Adeptus Mechanicus (10th Edition), pg. 22
Nurth	Dead World			Legion (Novel), Part One, ch. 1
Nyarr	Hive World			Codex: Space Marines (8th Edition), pg. 125 — Champions of Humanity
Nymidae	Adeptus Astartes Recruitment World / Tomb World		Recruitment world for the Dark Angels Chapter.	White Dwarf 403 (UK) (ipad version) — Battle Report: Siege of the Angels' Redoubt
Nysairene Delta	Forge World		Fell to Chaos in M42.	Codex: Chaos Knights (8th Edition), pg. 4
Obsidia	Adeptus Astartes Homeworld	Ultima	Home of the Sable Swords.	Codex: Space Marines (5th Edition), pg. 30
Obdura	Imperial World		Home of the 91st Obdura Siege Infantry.	Only War: Hammer of the Emperor, pg. 36
Occludus	Adeptus Astartes Homeworld	Ultima	Nostramo Sector. Home of the Death Spectres.	Codex: Space Marines (5th Edition), pg. 30
Octarius	Ork World	Ultima	Also known as Octaria or Octavius; capital of the Ork Empire of Octarius	Codex: Tyranids (5th Edition), pgs. 29–31
Odecima Tertius				Codex: Drukhari (8th Edition), pg. 78 — Pageantry of Commorragh
Oestragon III				Xenocide (Short Story) — 25 for 25 (Anthology), pg. 512
Ogris Major		Pacificus		Codex: Imperial Guard (5th Edition), pg. 26 - A Galaxy at War
Ogrys	Adeptus Astartes Homeworld	Ultima	Home of the Invaders.	Codex: Space Marines (5th Edition), pg. 30
Ohmsworld	Hive World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Enemies of the Imperium, pg. 13
Okki			Night Lords' Fief World during the Horus Heresy	Warhammer Community: Solar Auxilia – The Heraldry of Honour Part 3 (posted 13/6/2024) (Saved archive page, dated 30 July 2024, last accessed 30 July 2024, original link: https://www.warhammer-community.com/2024/07/30/solar-auxilia-the-heraldry-of-honour-part-3/)
Okku Station				White Dwarf 469, pg. 122 — The Horus Heresy: Armour Through the Ages
Olama				Wolf King (Novella), Chapter 2
Oldarian				Warlords of the Dark Millennium: Huron Blackheart (Background Book), pg. 7
Olympia	Dead World / Adeptus Astartes Homeworld (former)	Ultima	Former home of the Iron Warriors.	Index Astartes I, Bitter and Twisted (pg. 35)
Omeros				Index Astartes: Company Champions, pg. 15
Omicron Epsilon				Codex: Imperial Guard (3rd Edition, 2nd Codex), pg. 7
Omnicron 71-DX	Forge World	Obscurus	Calixis Sector / Adrantis Nebula	Dark Heresy Core Rulebook, pg. 288
Omus-2.8	Agri World			White Dwarf 481, pg. 10
Ondermanx				First and Only (Novel), Part Six, Chapter Two
Ootheca	Adeptus Astartes Homeworld		Former homeworld of the Mantis Warriors Chapter, ceded to the Carcharodons after the Badab War.	Codex: Space Marines (8th Edition, 2nd Codex), pg. 40
Ophelia VII	Cardinal World / Shrine World / Forge World	Tempestus	Seat of the Synod Ministra and Convent Sanctorum	Warhammer 40,000 4th Edition Rulebook, pg. 98
Ophelion				White Dwarf 408 (UK) (ipad version) — A Chapter Divided
Opus Macharius	Forge World	Obscurus	Calixis Sector, Drusus Marches	Dark Heresy Core Rulebook, pg. 288
Orana		Ultima	Imperial World	Codex: Imperial Guard (5th Edition), A Galaxy at War (pg. 26)
Orar	Hive World	Obscurus		Battlefleet Gothic Rulebook, pg. 94
Orask	Frontier World/Fortress World	Ultima		Imperial Armour - Apocalypse II, pg. 79
Orbel Quill	Agri World	Obscurus	Calixis Sector, Malfian Sub-sector	Dark Heresy Core Rulebook, pg. 288
Orbiana	Feral World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Core Rulebook, pgs. 332-333
Orcus	Penal World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Core Rulebook, pgs. 332-333
Ordana	Forge World			Imperial Armour - Apocalypse II, pg. 11
Orelia				Blood of Asaheim (Novel), Chapter One
Orendel's Tomb	Shrine World	Obscurus	Calixis Sector, Josian Reach	Dark Heresy Core Rulebook, pg. 289
Orestes	Forge World / Knight World	Pacificus		Codex: Imperial Knights (8th Edition), pg. 13 — Knight Worlds of the Imperium
Oriad	Mining World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Core Rulebook, pgs. 332-333
Oriflame				Deathwatch: Honour the Chapter, pg. 34
Orinoca	Hive world	Obscurus	Askellon Sector	Dark Heresy Second Edition: Core Rulebook, pg. 322
Orlen				Blood Gorgons (Novel), Chapter 3
Orlenza Triartes				Dataslate: Officio Assassinorum, pg. 31
Ormus				Imperial Knight Companion, pg. 57
Ornsworld	Ratling World	Obscurus	Gothic Sector	Battlefleet Gothic Rulebook, pg. 93
Orpheus Prime	Adeptus Astartes Homeworld / Adeptus Astartes Recruiting World (former)	Ultima	Homeworld of the Praetors of Orpheus Chapter.	Codex: Imperial Knights (6th Edition), pg. 13
Orphidia Delta	Hive World			Fanatic Online #2 - Emil Van Venkman - Rogue Bounty Hunter
Orphia	Hive World	Obscurus	Caliban Sector	White Dwarf 292 (UK), pg. 97
Orphidia Prime	Hive World			Fanatic Online #2 - Emil Van Venkman - Rogue Bounty Hunter
Orthoda Rex	Cardinal World			Crusade For Armageddon (Novel), Chapter 5
Oscillia IX		Pacificus	Was occupied by the forces of Chaos.	The Sabbat Worlds Crusade (Background Book), Phase Four (pg. 57)
Osiris	Dead World		Destroyed by the Inquisition	Signal to Noise (Short Story)
Ossorian	Hive World			White Dwarf 481, pg. 12
Ossuar	Shrine world	Obscurus	Askellon Sector	Dark Heresy Second Edition: Core Rulebook, pg. 322
Ossulon	Industrial World			White Dwarf 457, pgs. 10-17 - The Terminus (Short Story)
Ouranos	Paradise World			Silent Hunters (Novel), Part One, Chapter 4
Outremer	Maiden World			Throneworld (Novel), Chapter 6
Outrenacht	Adeptus Astartes Homeworld	Obscurus	Home of the Legion of Night.	Codex: Space Marines (5th Edition), pg. 30
Owwen	Hive World			[[Cadia Stands (Novel), Part 1: Chapter 1
Oxatan	Adeptus Astartes Homeworld	Ultima	Home of the Red Legion.	Codex: Space Marines (5th Edition), pg. 30
Palamar Secundus				Scars (Novel), Chapter 2
Palatine III	War World / Forge World / Ork World			Fanatic Online #1 — Avicennas Warband
Palaxion II	Shrine World		Site of the Cauldon of Biletide battle between incurring Nurgle Daemons and the Grey Knights.	White Dwarf 376 (UK), pg. 15 – The Cauldon of Biletide
Palinurus Rhys	Frontier World	Obscurus	Calixis Sector, Josian Reach	Dark Heresy Core Rulebook, pg. 289
Palis II	Dead world			Warhammer Citadel: New Hobbyist Expo Update - Escape from Palis II
Palladium			Imperial colony	Warhammer 40,000 3rd Edition Rulebook, pg. 117
Palomar	Dead world / Forge World (former)			Priests of Mars (Novel), Microcontent 07, pgs. 67–68
Pandora Prime	Hive world		Invaded by Eldar, Ork and Chaos forces.	[Help]
Panetha Varn			The planet's Decagogue's hedonistic priesthood was defeated by Inquisitor Covenant.	Exterminatus Issue 6 pgs. 24-27
Panell IV				Warhammer 40,000: Dawn of War II - Chaos Rising — Lance of Polyphemus, wargear selection screen
Parabellus III	Forge World			Codex: Astra Militarum (8th Edition), pg. 12 — Astra Militarum Company Organization: The Mechanicus and the Guard
Parabulus			Base of pirates	Codex: Dark Angels (7th Edition) — In the Name of Absolution - To Catch Cypher
Paragane	Feudal World			White Dwarf 481, pg. 13
Paraghast	Hive World		Attacked by Chaos forces in 904.M41	Codex: Chaos Daemons (6th Edition), pgs. 38–39
Paragon	Adeptus Astartes Homeworld	Solar	Home of the Emperor's Hands.	Codex: Space Marines (5th Edition), pg. 30
Paramar		Solar	Imperial World	Codex: Chaos (2nd Edition), pg. 48
Paramar V		Solar	Under the domain of the Adeptus Mechanicus	The Horus Heresy Book Three - Extermination, pgs. 18-19
Paraxus	Adeptus Astartes Recruiting World		Provides Aspirants to the Sons of Guilliman Chapter.	White Dwarf 72 (2015) — Parade Ground
Pardaeon Alphus	War World	Ultima		Warhammer: Visions 22, pg. 13 - Tau Empire
Parosa	Dead World	Ultima		Warriors of Ultramar (Novel) — The Ultramarines Omnibus, Chapter Four
Pascaari	War World	Obscurus		Warhammer World Event - The Hunt for Battlefleet Kruvek
Pavane	Imperial World	Solar	Recently discovered human world in the Moebian Domain.	Warhammer 40,000: Darktide - Character Creation - Home World: Pavane
Pavar V	Agri World			Imperial Armour Volume One - Second Edition: Imperial Guard, pg. 17
Pavonis	Mining World / Tomb World	Ultima	Location of the Night Bringer.	Codex: Necrons (3rd Edition), inside back cover
Pax	Gas Giant	Obscurus	Belongs to Rogue Trader Vyr Modren (see also Modren's Realm).	Rogue Trader: Twilight Crusade, pg. 35
Pech		Ultima	Homeworld of the Kroot, part of the T'au Empire	White Dwarf 264 (UK), pgs. 94-98 — Index Xenos: Savage Evolution
Pelius				Fist of Demetrius (Novel), Chapter 14, pgs. 91–92
Pellucida IX	Mining World	Obscurus	Calixis Sector / Drusus Marches	Dark Heresy Core Rulebook, pg. 288
Pelucil		Ultima		Codex: Death Guard (8th Edition), pg. 23 — The Great Brewing
Penolpass	Feudal World	Obscurus	Calixis Sector / Malfian Sub-sector	Dark Heresy Core Rulebook, pg. 288
Penolpass	Feudal World	Obscurus	Calixis Sector / Malfian Sub-sector	Dark Heresy Core Rulebook, pg. 288
Pentari				Missing in Action (Short Story)
Perditia				Codex: Dark Angels (8th Edition), pg. 38 — Close Support Squads
Perechar	Adeptus Astartes Homeworld	Obscurus	Close to the Eye of Terror	Codex: Chaos Daemons (9th Edition), pg. 37 - The Eye of Terror
Perinetus	Forge World	Obscurus	Calixis Sector, Adrantis Nebula	Dark Heresy Core Rulebook, pg. 288
Periremunda	Civilised World	Ultima		Duty Calls (Novel), Editorial Note after Chapter One, pg. 18
Perlia	Civilised World	Ultima		Death or Glory (Novel), Chapter One, pg. 18
Perpetua	Hive World			White Dwarf 481, pg. 12
Persepolis	Hive World	Pacificus		Imperium Maledictum, pgs. 263-264
Pertinax	Feudal World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Core Rulebook, pgs. 332-333
Pervigilium	Adeptus Astartes Homeworld	Obscurus	Home of the Angels of Vigilance	Third War For Armageddon - Imperial Forces: Angels of Vigilance (saved archive page, dated 20 August 2006, last accessed 9 July 2024)
Phaedox XIII	War World			Codex: Chaos Daemons (9th Edition), pg. 47 - Infernal Panoply
Phaedra	Ocean World	Eastern Fringe	Home of the Saathlaa.	Fire Caste (Novel)
Phaenon Prime	Dead World / Penal World (former) / Hive World (former)	Obscurus		Dark Heresy: The Radical's Handbook, pgs. 118–120
Phaethon IV	Tomb World / Industrial World (former)			The Long Games at Carcharias (Short Story) — Victories of the Space Marines (Anthology), pg. 81
Phaeton	Forge World	Solar	Origin of a common pattern of Leman Russ Battle Tank and Chimera variants; home to the Legio Osedax	Imperial Armour Volume One - Imperial Guard and Imperial Navy, pg. 8
Phagir	Dead World	Obscurus	Calixis Sector, Hazeroth Sub-Sector	Dark Heresy Core Rulebook, pg. 289
Phagos VII	Daemon World	Obscurus	Eye of Terror Devoted to Nurgle	Daemon Worlds: The Eye of Terror — Phagos VII
Phaistos Osiris	Cardinal World	Ultima		Imperial Armour Volume Ten - The Badab War - Part Two, pgs. 76–78
Phalan 10	Industrial World			Codex: Chaos Daemons (6th Edition), pg. 35
Pharaxes				Assassinorum: Kingmaker (Novel), Chapter 5
Phenosia				Rebel Winter (Novel), Chapter 3
Phobian	Adeptus Astartes Homeworld	Tempestus	Home of the Dark Hunters.	Codex: Space Marines (5th Edition), pg. 30
Phobos	Imperial World		Not to be confused with the Martian moon of the same name	The Thirteenth Black Crusade (Background Book), pg. 91
Phorus	Quarantined World	Ultima Segmentum	Part of Signus Cluster	Fear to Tread (Novel) - Chapter Five
Phraeges III	War World	Ultima	Outer edges of the Red Scar.	Codex Supplement: Blood Angels (10th Edition), pg. 47 - Showcase: The Sanguinary Brotherhood
Phyressia			Home world of the Phyressian Armoured regiments of the Imperial Guard.	Imperial Armour - Imperial Vehicles for Warhammer 40,000, pg. 37
Phyrr	Death World	Obscurus	Calixis Sector, Hazeroth Sub-Sector	Dark Heresy Core Rulebook, pg. 289
Picus	Agri World	Obscurus		Battlefleet Gothic Rulebook, pg. 159
Piety	Hive World	Obscurus		Black Industries' Calixis Sector (saved archive page, dated 17 February 2008, last accessed 9 July 2024)
Piety of Seth	Shrine World	Obscurus	Calixis Sector, Adrantis Nebula	Dark Heresy Core Rulebook, pg. 289
Pilgrim's Pause	Cemetery World	Obscurus	Calixis Sector, Hazeroth Sub-Sector	Dark Heresy Core Rulebook, pg. 289
Pimonedes Alpha				Eternal War (Comic Anthology) — A Good Day To Die
Pintax		Tempestus	Imperial World	Codex: Imperial Guard (5th Edition), pg. 26
Piscina IV	Mining World	Solar	In a constant battle with Orks.	Codex: Dark Angels (4th Edition), pg. 42
Plague Planet	Daemon World	Obscurus	Formerly known as Eliathada; current homeworld of the Death Guard	Realm of Chaos: The Lost and the Damned, pgs. 256–257
Plarsdek	Industrial World			Codex: Adeptus Custodes (9th Edition), pg. 43 - The Splendour of Holy Terra
Pleuvus Seven				From the Blood (Short Story) — Flesh Tearers (Anthology)
Plutol			Abaddon had most of the population killed when priests of a wilderness shrine refused to bow to his authority.	Warlords of the Dark Millennium: Abaddon the Despoiler, pg. 7
Pluvioris	Daemon World	Obscurus		White Dwarf 282 (UK), pg. 21 — The Eye of Terror — Daemon Worlds
Poina 77	Mining World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Core Rulebook, pgs. 332-333
Polom	Agri World			White Dwarf 481, pg. 10
Porphetus	Dead World / Forge World (former)		Destroyed by Tyranids.	Priests of Mars (Novel), Microcontent 06, pg. 58
Porphyry	Mining World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Enemies of the Imperium, pg. 42
Port Sanctus	Fortress World	Solar	Imperial Navy base.	The Emperor Expects (Novel), ch. 19
Port Veruca	Imperial World			Blood Gorgons (Novel), Chapter 18
Port Wrath	Special World. Headquarters for Battlefleet Calixis	Obscurus	Calixis Sector, Drusus Marches.	Dark Heresy Core Rulebook, pg. 288
Poscol				First and Only (Novel) — The Founding (Omnibus), Part Five, Chapter Eight
Posul	Destroyed — Adeptus Astartes Homeworld (former) / Feral World (former)	Tempestus	Former home of the Mortifactors.	Codex: Tyranids (5th Edition), pg. 28
Praedis Zeta	Hive World / Adeptus Astartes Homeworld	Ultima	Home to the Imperial Reavers.	Warhammer 40,000 6th Edition Rulebook, pg. 409
Praesidia	Adeptus Astartes Homeworld / Death World / Desert World	Ultima	Homeworld of the Sons of Guilliman Space Marine Chapter.	Codex Supplement: Ultramarines (8th Edition) - Successor Chapters
Praesteum's Forge	Dead World		Imperium Nihilus. Subjected to Exterminatus after the opening of the Great Rift.	Pilgrims of Fire (Novel), Part Six, Chapter Two
Praetoria	Hive World	Tempestus	Home to the Praetorian Guard Imperial Guard Regiments.	"Massacre at Big Toof River" - UK Gamesday '97 Programme
Pramatia				Legion (Novel), Part 2: Chapter 3
Pranagar	Adeptus Astartes Homeworld (former)	Tempestus	Home of Sky Sentinels, overrun by Chaos forces during the 13th Black Crusade	Warhammer 40,000 8th Edition Rulebook, pg. 151 — Dark Imperium
Prandium	Dead World / Garden World (former) / Agri World (former)	Ultima	Consumed by Hive Fleet Behemoth in 745.M41	Codex: Space Marines (8th Edition), pg. 25
Prassrum		Ultima		Codex: Imperial Guard (5th Edition), pg. 26 — A Galaxy at War
Praxis II	War World			Warhammer 40,000 8th Edition Rulebook, pg. 246
Prester Myra	Cemetery World	Obscurus	Calixis Sector / Josian Reach	Dark Heresy Core Rulebook, pg. 289
Pretannis VII	Feudal World			White Dwarf February 2020, pg. 59 — Indomitus Crusade Heroes
Preyspire	Adeptus Astartes Homeworld	Ultima	Home of the Hawk Lords.	Codex: Space Marines (5th Edition), pg. 30
Priory II	War World			Codex: Space Wolves (3rd Edition), pg. 26
Prism	Adeptus Astartes Homeworld	Ultima	"Records deleted"	Codex: Space Marines (5th Edition), pg. 30
Prixetti VII				Black Crusade: The Tome of Excess, pg. 7
Profundis	War World			Codex: Deathwatch (9th Edition), pg. 24 - Knights of the Long Vigil
Prol IX	Hive World	Obscurus	Calixis Sector / Markayn Marches	Dark Heresy Core Rulebook, pg. 289
Promada IV				Unification (Short Story) - Warriors and Warlords (Anthology)
Prosperis II	War World	Ultima		Codex: T'au Empire (9th Edition), pg. 40 - Insignia of Empire
Prospero	Destroyed — Adeptus Astartes Homeworld (former)	Ultima	Former home of the Thousand Sons; under reconstruction after the formation of the Great Rift	Index Astartes III, Masters of Forbidden Knowledge - The Thousand Sons Space Marine Legion, pg. 68
Protasia	Hive World War World	Obscurus	Calixis Sector, Drusus Marches	Dark Heresy Core Rulebook, pg. 288
Protheus		Obscurus	The planet had billions of its population turned into Plaguebearers by Typhus, Herald of Nurgle.	Warlords of the Dark Millennium: Typhus, pg. 8, Typhus the Traveller
Providence Lenticula				First and Only (Novel) — The Founding (Omnibus), A Memory: Khedd 1173, Sixteen Years Earlier (Interstitial between Parts Five and Six)
Proxima-III	Quarantined World			Warhammer 40,000 5th Edition Rulebook, pg. 115
Proxima Trantor	Xenos World (former)			The Horus Heresy Book Seven - Inferno, pg. 141
Puhl-puhl	Swamp World			Codex: Craftworlds (8th Edition), pg. 70
Purgatory (World)		Ultima		Index Chaotica - Noise Marines — Ambush in Blackpass
Purgatory	Research Station	Obscurus		Codex: Chaos (2nd Edition), pg. 48
Purgatory of Soubirous	Mining World	Obscurus	Calixis Sector, Hazeroth Sub-Sector	Dark Heresy Core Rulebook, pg. 289
Purge III	Shrine World / Death World			White Dwarf 481, pg. 13 — Worlds of Warhammer
Pylar	Ice World	Obscurus	Part of Modren's Realm	Rogue Trader: Twilight Crusade, pg. 35
Pyr				Blood of Iax (Novel), Chapter 4
Pyran	Civilised World	Solar	Home to the Pyran Dragoons Imperial Guard.	Armageddon Site (saved archive page, dated 23 August 2003, last accessed 9 July 2024)
Pyrites	Civilised World	Pacificus		First and Only (Novel), Part Four, Chapter One
Pyrrhia	Tomb World			Codex: Necrons (5th Edition), pg. 62
Qavalon				Brotherhood of the Storm (Novella), Chapter 3
Qietto				Rebel Winter (Novel), Chapter 12
Quaddis	Paradise World	Obscurus	Calixis Sector, Golgenna Reach	Dark Heresy Core Rulebook, pg. 288
Quanta Magnifica	War World			Codex: Drukhari (9th Edition), pg. 40 — A Sinister Spectacle
Quatara-Prime	Desert World			Imperial Armour - Imperial Vehicles for Warhammer 40,000, Inside front cover
Quatra	Desert World			Warhammer 40,000: Dawn of War - Dark Crusade, Quatra (Map Description)
Quintarn	Agri World / Desert World	Ultima	One of the nine worlds of Ultramar.	Codex: Space Marines (5th Edition), pg. 15
Queh-quih	Sept World	Ultima	Kroot Sept World of the Tau Empire.	Fire Warrior (Novel), Chapter 3, pg. 60
Quintus	Industrial World	Ultima		Codex: Space Marines (5th Edition), pgs. 42–43
Quisto'rol		Ultima		Codex: Imperial Guard (5th Edition), pg. 27 - A Galaxy at War
Qulus Trine	Merchant World			Dawn of War: Tempest (Novel), Chapter 5
Racion	Feudal World			Warhammer World Event - Investigation on Glomus
Radnar	Dead World / War World / Hive World (former)	Ultima	Invaded by Hive Fleet Kraken.	Orphans of the Kraken (Short Story)
Rahjez		Ultima	Subsector Fantomine	The Inquisition (Background Book), pg. 9
Raikan	Adeptus Astartes Homeworld	Tempestus	Home of the Red Talons.	Codex: Space Marines (5th Edition), pg. 30
Ralephos	Archival World	Ultima		Codex: Orks (7th Edition)[Help]
Ral'eth	T'au Sept (former)	Ultima		Codex: Khorne Daemonkin (7th Edition) — Chaos Bikers
Ramenghal	Civilized World			Codex: Blood Angels (8th Edition), pg. 23 — A Chronicle of Heroes: From Beyond the Veil
Ramillon IV				Warhammer: Visions 21, pg. 158 — Parade Ground
Rana	Jungle World			Warhammer 40,000: Chaos Gate — Target of Opportunity: Rana
Rand XXI	Desert World		Held by the Adepta Sororitas.	Lesser Evils (Short Story) — Hammer and Bolter 13, pgs. 85–87
Rann	Sept World	Ultima		Fire Warrior (Novel), Chapter 3, pg. 70
Ra'pson				Codex: Tyranids (8th Edition), pg. 16 — The First Tyrannic War: Behemoth Advances
Rassios	Hive World	Solar		Warhammer 40,000 5th Edition Rulebook, pg. 138
Raxos	Hive World (former)			Codex: Grey Knights (5th Edition), pg. 14
Rayvenscrag IV				Priests of Mars (Novel), Microcontent 06
Rebus			Night Lords' Fief World during the Horus Heresy	Warhammer Community: Solar Auxilia – The Heraldry of Honour Part 3 (posted 13/6/2024) (Saved archive page, dated 30 July 2024, last accessed 30 July 2024, original link: https://www.warhammer-community.com/2024/07/30/solar-auxilia-the-heraldry-of-honour-part-3/)
Regulus	Agri World	Obscurus	Calixis Sector, Hazeroth Sub-Sector	Dark Heresy Core Rulebook, pg. 289
Rentyr Prime				Conquest 64 — Space Marines: Drop Pods
Reshia	Shrine World	Obscurus	Calixis Sector, Josian Reach	Dark Heresy Core Rulebook, pg. 289
Reth	Paradise World	Obscurus	Calixis Sector, Adrantis Nebula.	Dark Heresy Core Rulebook, pg. 288
Revelet Taredes	Gas Giant			Scars (Novel), Chapter 1
Rexus IX				Last Step Backwards (Short Story)
Reznor		Obscurus	Uninhabited	White Dwarf 291 (UK), pg. 96
Rhanda	Civilised World / Mining World	Solar		Codex: Sisters of Battle (2nd Edition), pg. 39
Rhodin IV	Forge world	Obscurus	Askellon Sector	Dark Heresy Second Edition: Core Rulebook, pg. 322
Rhodus	War World			The Rewards of Tolerance (Short Story)
Rhorsch	Jungle World / Shrine World		Invaded by Blood Cults, but saved by the Mortifactors and Raven Guard.	Codex: Space Marines (7th Edition) — The Chronicles of Heroes - In Blood and Shadows
Rianoen	Exodite World	Ultima		Warhammer 40,000 5th Edition Rulebook, pg. 154
Rilaea Secundus	Agri World			Shadowbreaker (Novel), Chapter 64
Rith			Convent world.	The Eternal Crusader (Novella), Chapter 3
Ritzos			Imperial world.	The Thirteenth Black Crusade (Background Book), pg. 91
Rocyria	Agriworld	Solar	A world of the Moebian Domain.	Warhammer 40,000: Darktide - Character Creation - Home World: Rocyria
Ronja			Its civilisation was extinguished in a single night by the Daemon Prince Cherubael	White Dwarf 260 (UK) pg. 70
Rook				Imperial Armour Volume Two - Second Edition: War Machines of the Adeptus Astartes, pg. 190
Rovanat IV				Fanatic Online #31 - Swords of the Unfaithful
Ruden III				Shield of Baal: Exterminatus — Blade of Sanguinius: Commander Dante
Ruhr III	Mining World			Warhammer 40,000: Squad Command
Rustfane	Industrial World / Desert World		In the service of the Adeptus Mechanicus	Leviathan (Box) Rulebook, pg. 156
Ryboth	Forge World	Obscurus	Calixis Sector / Markayn Marches	Dark Heresy Core Rulebook, pg. 289
Rygar				Codex: Space Wolves (8th Edition), pg. 33 — Harald Deathwolf
Rylan			Site of The Dawn Hammer battle in 766.M37.	Dataslate: Space Marines Strike Force Ultra (Background Book), pg. 13
Rymoria	War World			White Dwarf August 2019 — For the Emperor (Short Story), pgs. 68-69
Rynn's World	Adeptus Astartes Homeworld / Agri World	Ultima	Home of the Crimson Fists.	Warhammer 40,000: Rogue Trader, pgs. 62–66
Ryza	Forge World / War World	Ultima		Imperial Armour - Imperial Vehicles for Warhammer 40,000, pg. 16
Sa'cea	Tau Sept	Ultima		White Dwarf 263 (UK), pg.20
Sabatine	Daemon World / Adeptus Astartes Homeworld (former)	Pacificus	Original home of the White Consuls, overrun by Chaos forces after the formation of the Great Rift	Warhammer 40,000 8th Edition Rulebook, pg. 51 — Dark Imperium
Sable		Ultima		Honours (Short Story), pg. 3
Sabriel	Unclassified	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Core Rulebook, pgs. 332-333
Sacris	Forbidden World Adeptus Astartes Homeworld	Obscurus	Calixis Sector, Drusus Marches. Homeworld of the Storm Wardens Chapter.	Dark Heresy Core Rulebook, pg. 288
Saganor	Quarantined World / Jungle World			Dawn of War: Dark Crusade: Forbidden Jungle (Map Description)
Sagathis	Agri World			Fall of Cadia (Novel), Phase Three, ch. 3
Saharrin	War World			Conquest 48 — Deadly Pursuit
St. Astrid's Fall	Frontier World	Obscurus	Calixis Sector, Hazeroth Sub-Sector	Dark Heresy Core Rulebook, pg. 289
St Capilene	Missionary World			White Dwarf 257 (UK), pg. 95
Saint Cyllia's World				Codex: Astra Militarum (8th Edition), pg. 31 — Heroes Beyond Number: The Saint Cyllia Aftermath
Saint Lykon's Repose	Shrine World			White Dwarf 481, pg. 13
Saint Marduk's Bane	Dead World / Hive World (former)	Tempestus	Formerly known as Colkasth.	Imperial Armour Volume Twelve - The Fall of Orpheus, pgs. 20–22
St Rezmond’s Hope	Ork World / Shrine World (former)			White Dwarf 452, pg. 38
Saint's Lament	War World			Codex: Genestealer Cults (9th Edition), pg. 44 — The Faithful Throng
Salem	Dead World	Ultima	Asteroid-monastery, attacked by Hive Fleet Kraken in 991.M41	Codex: Tyranids (6th Edition) (e-book) — The Second Tyrannic War
Salem Proctor	Cardinal World		Site of the Salem Proctor Rebellion	Codex: Witch Hunters (3rd Edition), pg. 45
Salkizor				Legion (Novel), Part 1: Chapter 12
Sallan's World	Ice World		Site of the Sallan's World Offensive.	Imperial Armour - Imperial Vehicles for Warhammer 40,000, pg. 62
Salomine	T'au Colony	Ultima		The Traitor's Hand (Novel), Chapter One
Samarkis	War World / Ocean World / Mining World			Warhammer Community: The Best Battle Reports Ever – Warhammer Staff Relive Their Favourite Throwdowns (Posted on 03/05/2024) (Last accessed on 03/05/2024)
Samax IV	Agri World			Xenocide (Short Story)
Samech	Hell Forge	Ultima		Deathwatch: The Achilus Assault, pgs. 91–93
Sameranth				Legion (Novel), Part 1: Chapter 7
Sameter	Civilised World	Obscurus		Missing in Action (Short Story)
Samson IV	Hive World	Obscurus	Calixis Sector / Hazeroth Sub-Sector	Dark Heresy Core Rulebook, pg. 289
Sanctus Valorium	Forge World			Codex: Astra Militarum (8th Edition), pg. 12 — Astra Militarum Company Organization: The Mechanicus and the Guard
San Guisaga	Adeptus Astartes Homeworld		Homeworld of the Blood Drinkers Chapter.	Red Fury (Novel), Chapter Seven
San Leor	Agri World	Ultima		Codex: Sisters of Battle (2nd Edition), pg. 10
San Sebastian			Homeworld of the Martyrs of Thor Death Cult	White Dwarf 261 (UK) pg. 65
Sancour		Obscurus		Pariah (Novel), chs. 25, 26, 38
Sanctimonia	Cardinal World		The starting point of the Sanctimonia Conflict in 291.M37	White Dwarf 458, pg. 50
Sanctum	Adeptus Astartes Homeworld	Pacificus	Home of White Templars; earlier source locates it in the Segmentum Solar	Codex: Space Marines (8th Edition), pgs. 16-17 — Imperius Dominatus
Sanctus Lys	Shrine World			Revelation (Short Story)
Sanisor			Fell to Chaos in 356.M38.	Imperial Armour Volume Thirteen - War Machines of the Lost and the Damned, pg. 123
Sans Gaviria	Death World			Voidsong (Short Story) - There Is Only War (Anthology), pg. 585
Sansha XII		Solar		Codex: Adeptus Custodes (9th Edition), pg. 41 - The Splendour of Holy Terra
Saras VII	Agri world	Pacificus		Imperial Armour Volume Eleven - The Doom of Mymeara, pg. 74
Sargotha				Codex: Grey Knights (8th Edition), pg. 34 — Brother-Captain Stern
Sarius V	Shrine World / Desert World			Munitorum: Vulcan Mega-Bolter (Background Book), pg. 2
Sarosel				Horus Rising (Novel), Part One, Chapter Nine
Sarkon	Tomb World	Obscurus	Centre of the Empire of the Severed.	Codex: Necrons (5th Edition), pg. 16
Sarlax	Agri World	Obscurus	Agripinaa Sector. Fell to Chaos during the 13th Black Crusade.	Cadia Stands (Novel), Part 5: Chapter 2
Sarmathia				Revelation (Short Story))
Sarposia	Dead World		Destroyed by Hive Fleet Jormungandr.	Codex: Tyranids (8th Edition), pg. 33 — Hive Fleet Jormungandr: The Great Serpent Rises
Sarum	Hell Forge	Ultima		The Horus Heresy Book One - Betrayal, pgs. 99–101
Sathathorix				Master of Sanctity (Novel), Part 3 - Old Wounds
Saturn	Gas Giant / Inquisitorial Fortress	Solar	Its moon, Titan serves as the headquarters of the Ordo Malleus and Grey Knights.	Codex: Grey Knights (5th Edition), pg. 30
Scarric XXII	Unclassified	Obscurus	Calixis Sector / Hazeroth Sub-Sector	Dark Heresy Core Rulebook, pg. 289
Scathe	Civilized World	Obscurus	The third planet of Modren’s Realm.	Rogue Trader: Twilight Crusade, pg. 34
Scelilus' Hope			Morhet Sector	Pilgrims of Fire (Novel), Part Three, Chapter Three
Scelus	Feral World / Adeptus Astartes Homeworld (former)	Obscurus	Former home of the Sons of Malice.	Index Astartes IV — Rogues Sons - Renegade Space Marine Chapters
Schrödinger VII	Ice World / Tomb World / Hive World (former) / Mining World (former)		Ruled by the Necrons.	White Dwarf 384 (UK), pgs. 68-70 — Slaughter On Schrödinger VII
Scintilla	Hive World	Obscurus	Calixis Sector / Drusus Marches. Sector capital of the Calixis Sector.	Dark Heresy Core Rulebook, pg. 288
Scintilla Prime				Codex: Chaos Daemons - Daemonic Incursion Edition — Hellflayers of Slaanesh
Scoltrum	Quarantined World	Ultima Segmentum	Part of Signus Cluster	Fear to Tread (Novel) - Chapter Five
Scoria Prime	War World	Ultima		Gathering Storm: Fracture of Biel-Tan, Chapter 1: Dire Tidings for Biel-Tan - Addenda Inquisitoria
Scound's Fall	Cardinal World	Solar		Codex: Chaos Space Marines (4th Edition), pg. 42
Scythia	Formely Tomb World, now Ork World			White Dwarf 452, pg. 38
Seco	Xenos World	Ultima	Kroot world discovered by the T'au during the Third Sphere of Expansion	Warhammer 40,000 5th Edition Rulebook, pg. 170
Seculoris				[[The Horus Heresy Book Seven - Inferno, pg. 141
Secunda	Desert World	Obscurus		Warhammer 40,000: Chaos Gate — Target of Opportunity: Secunda
Seedworld AFG:218	Forbidden World	Obscurus	Calixis Sector / Malfian Sub-sector	Dark Heresy Core Rulebook, pg. 288
Seidon	Tomb World	Ultima		Codex: Necrons (5th Edition), pg. 17
Sekel's Landing		Solar		The Horus Heresy Book Five - Tempest, pg. 71
Sekmet	Gas Giant	Obscurus	Calixis Sector, Hazeroth Sub-Sector	Dark Heresy Core Rulebook, pg. 289
Semmel		Ultima Segmentum	Eastern Fringe / Vidar Sector	Warhammer 40,000 6th Edition Rulebook, pg. 409
Semus				Dawn of War: Dark Crusade: Fortress (Map Description)
Sepharis Ultra				The Emperor's Chosen (Short Story)
Sepheris Secundus	Feudal World	Obscurus	Calixis Sector / Golgenna Reach	Dark Heresy Core Rulebook, pg. 288
Septimus Moore	Necron Tomb World			Warhammer 40,000: Dawn of War II — Unflinching Warp Crusader, wargear selection screen
Sepus Prime	Dead World	Pacificus	Destroyed by Virus Bombs during a Chaos insurrection	Blackstone Fortress (Novel), Before
Seraphina	Ork World (former)	Ultima	Wheel of Fire Sector	Two Metaphysical Blades (Short Story)
Serena	Pleasure World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Core Rulebook, pgs. 332-333
Sergatama VI				White Dwarf 276 (UK), pg. 100 — Claws of the Raven - The Saga of the Weregeld
Settlement 228	Frontier World	Obscurus	Calixis Sector / Drusus Marches.	Dark Heresy Core Rulebook, pg. 288
Setvan	War World	Obscurus	Sentinel Worlds System.	White Dwarf 291 (US), pg. 96
Sevara	Feral World / Jungle World / Hive World (former)			Tau & Necron Collectors' Guide, pg. 44
Sevayin				Daenyathos (Novella), Part 1
Sha'draig	Tau Sept / Death World / Jungle World	Ultima		White Dwarf July 2019, pg. 48
Shangh VI				Codex: Space Marines (8th Edition, 2nd Codex), pg. 53 — Iron Hands
Shannon's Reach			Described as lawless	White Dwarf 262 (UK), pg. 101
Shardenus	Hive World	Contqual Subsector	Purged of Chaos influence by the Iron Hands in 812.M41.	White Dwarf 262 (UK), pg. 70
Sharlor	Agri World		Site where the Penumbral Cult was destroyed by the Black Templars Chapter.	Index Astartes: Stalkers and Hunters (Background Book) — Renowned Hunters - Javelin of Faith
Shau'Nesh	Sept World (former)	Ultima		Codex: Khorne Daemonkin (7th Edition), pg. 20 — Slaughter Without End - All Is Death
Shemnoch	Tomb World (former)		Iron Hands and Brazen Claws Chapters defeated Shemnoch's Necron Dynasty.	Clan Raukaan - A Codex: Space Marines Supplement — The Hall of Conquest
Shenlong	Forge World			Deus Encarmine (Novel), ch. 6
Sheol XVII	Penal World	Obscurus	Calixis Sector / Hazeroth Sub-Sector	Dark Heresy Core Rulebook, pg. 289
Shodrax				Warhammer 40,000 5th Edition Rulebook, pg. 139
Shroud	Ice World			White Dwarf September 2019, pg. 40
Sibb's World				White Dwarf 112 (UK), pg. 15 - Terminator
Sicarus	Daemon World	Obscurus		Dark Creed (Novel), pg. 9
Sickle	Forbidden World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Core Rulebook, pgs. 332-333
Siculi	Agri World	Obscurus	Calixis Sector, Adrantis Nebula.	Dark Heresy Core Rulebook, pg. 288
Sidon 452	Forge World			Farseer (Novel), Chapter Sixteen
Sigma-Agrius	Agri World	Obscurus	Populated by Ratlings	White Dwarf 284 (UK), pg. 83
Signus Prime	Quarantined World	Ultima Segmentum	Part of Signus Cluster	Fear to Tread (Novel) - Chapter Five
Signus Tertiary	Quarantined World	Ultima Segmentum	Part of Signus Cluster	Fear to Tread (Novel) - Chapter Five
Signus Twelve	Dead World / Mining World (former)	Ultima	Ultramar Subsector.	Adeptus Titanicus: Shadow and Iron, pg. 14 - The Iron Crusade: Burning Sands, Cold Vengeance
Sigurd IV	Hive World	Obscurus	Calixis Sector, Josian Reach	Dark Heresy Core Rulebook, pg. 289
Silence	Adeptus Astartes Homeworld	Obscurus	Home of the Night Watch.	Codex: Space Marines (5th Edition), pg. 30
Simia Orichalcae	Ice World / Mining World / Tomb World			Caves of Ice (Novel), Chapter 1, pgs. 295–298
Sinophia	Frontier World / Unclassified	Obscurus	Calixis Sector / The Periphery / Spinward Front	Dark Heresy Core Rulebook, pg. 288
Sirens' Den	Paradise World	Obscurus	Calixis Sector, Markayn Marches	Dark Heresy Core Rulebook, pg. 289
Sisk	Feudal World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Dark Heresy Core Rulebook, pg. 288
Sixty-Three-Nineteen	Civilised World			Horus Rising (Novel), Part One, Chapter One
Skardenfel				Codex: Khorne Daemonkin (7th Edition) — Slaughter Without End — The Threefold War
Skarus	War World / Necron Tomb World			Warhammer World Event - War for the Webway
Skeros				Codex: Khorne Daemonkin (7th Edition) — Slaughter Without End - Dangerous Prey
Skorgulian	Forge World	Obscurus	Calixis Sector, Adrantis Nebula	Dark Heresy Core Rulebook, pg. 288
Skrynne	Death World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Core Rulebook, pgs. 332-333
Skraag			Also known as Beta-Entebes III	Index Imperialis: Apocrypha, pg. 53
Skumgrot's Rock	Xenos World		Ork World	The Citadel Journal 5, pg. 17
Sleef	Dead World	Obscurus	Calixis Sector, The Periphery	Dark Heresy Core Rulebook, pg. 288
Smelter's Heap	Mining World			Codex: Space Wolves (8th Edition), pg. 21 — Annals of the Space Wolves: The Curse of Russ
Snope's World	Hive world	Obscurus	Askellon Sector	Dark Heresy Second Edition: Core Rulebook, pg. 322
Snowden's World	Frontier World	Obscurus	Calixis Sector, Josian Reach	Dark Heresy Core Rulebook, pg. 289
Solek	Jungle World			Blood of Iax (Novel), Chapter 7
Solemnace	Tomb World	Ultima	Home to Trazyn the Infinite.	Codex: Necrons (5th Edition), pg. 58
Solemnus	Feudal World / Quarantined World / Adeptus Astartes Homeworld (former)		Former home of the Black Templars	Crusade for Armageddon (Novel), Prologue, pg. 15
Solomon	Hive World	Obscurus	Calixis Sector / Markayn Marches	Dark Heresy Core Rulebook, pg. 289
Soloo	Ice World			Azrael (Novel), Part Two — Date Ident: Unknown
Solshen XIX	Agri World	Solar		[Help]
Solstice	Feudal World	Tempestus		Codex: Sisters of Battle (2nd Edition), pg. 62
Somnium		Obscurus		Rogue Trader: Edge of the Abyss, pgs. 101-102
Somonor	Tomb World		Part of the Sautekh Dynasty.	Codex: Necrons (5th Edition), pg. 22
Sondheim V	Dead World / Daemon World (former) / Agri World (former)	Tempestus	Transformed by M'kar the Reborn into his own Daemon World. Subjected to Exterminatus by the Sky Sentinels Chapter.	Codex: Tyranids (5th Edition), pgs. 28–31
Sophano Prime	Mining World	Obscurus	Calixis Sector / Golgenna Reach	Dark Heresy Core Rulebook, pg. 288
Soprony	Forbidden World / |Xenos World	Obscurus	Calixis Sector / Hazeroth Sub-Sector	Dark Heresy Core Rulebook, pg. 289
Sortiarius	Daemon World	Ultima / Obscurus (former)	Also known as the Planet of the Sorcerers; current homeworld of the Thousand Sons	Realm of Chaos: The Lost and the Damned, pgs. 268, 274
Soryth	Mining World	Obscurus	Calixis Sector, Adrantis Nebula	Dark Heresy Core Rulebook, pg. 289
Sotha	Dead World / Civilised World (former) / Adeptus Astartes Homeworld (former) / Tomb World (former)	Ultima	Former homeworld of the Scythes of the Emperor Chapter.	Orphans of the Kraken (Short Story)
Sozomen's Last Stand	Agri World	Obscurus	Calixis Sector / Markayn Marches	Dark Heresy Core Rulebook, pg. 289
Spaeter Relixas				Iron Hands (Novel), Chapter 5, pg. 69
Sparme				Legacy (Novel), Chapter 5
Spectoris	Agri World	Obscurus	Calixis Sector, Drusus Marches	Dark Heresy Core Rulebook, pg. 288
St Dornas Port	War World			Codex: Drukhari (9th Edition), pgs. 34-35 — A Sinister Spectacle
St. Guise	Cardinal World			Redemption Corps (Novel), Chapter 1, pg. 10
St Jedask's Haven	War World / Mining World			Codex: Chaos Space Marines (9th Edition), pg. 61 - Insignium Traitoris
St. Salvus Dock	Fleet Base			Iron Hands (Novel), Chapter 10, pg. 147
Stalinvast	Dead World / Hive World (former)			White Dwarf 317 (UK), pg. 52
Stalynthia	Mining World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Enemies of the Imperium, pg. 11
Stenoth				Warhammer 40,000: Kill Team Core Manual (2nd Edition), pg. 12 — Theatres of War
Sternac	Adeptus Astartes Homeworld	"Beyond Imperial boundaries" (East of Ultima)	Home of the Iron Lords.	Codex: Space Marines (5th Edition), pg. 30
Stonekraal	Frontier World	Ultima		Imperial Armour Volume Ten, pgs. 126–127
Strank	Feral World	Obscurus	Calixis Sector / Golgenna Reach	Dark Heresy Core Rulebook, pg. 288
Stracc II	Hive World			White Dwarf 481, pg. 12
Strathrax Fort	Forge World			White Dwarf 261 (UK), pg. 67
Sturmveil	Industrial World	Tempestus		Psychic Awakening: Engine War, pgs. 4-5 - The Tide of Power
Stygia-Aquilon	Adeptus Astartes Homeworld	Tempestus	Homeworld of the Executioners Space Marine Chapter.	Imperial Armour Volume Two - Second Edition, pgs. 8
Stygia XII	Forge World			And They Shall Know No Fear... (Short Story)
Stygian Prime	Agri World	Obscurus	Calixis Sector / Hazeroth Sub-Sector	Dark Heresy Core Rulebook, pg. 289
Stygies VIII	Forge World	Ultima		White Dwarf 260 (UK) pg. 64
Styrus	Hive World	Ultima	Ultramar Subsector	Adeptus Titanicus: Shadow and Iron, pg. 14 - The Iron Crusade: Burning Sands, Cold Vengeance
Subiaco Diablo	Hive World	Obscurus	Home to the Convent of the Adepta Sororitas' Order of the Ermine Mantle	White Dwarf 287 (UK), pg. 42
Sulairn		Ultima		Codex: Imperial Guard (5th Edition), pg. 26
Sulo	Frontier World	Ultima		Codex Imperialis (Background Book), pg. 35
Sulyvan	Daemon World / Agri World (former)	Ultima	Corrupted by the Chaos Space Marine Kyrus the Chantleader.	Deathwatch: Mark of the Xenos, pg. 108
Sundamar				Legacy of Dorn (Novel), Chapter 6
Suranas	Tomb World			Codex: Necrons (5th Edition), pg. 24
Surealis VI	Civilised World	Obscurus		Missing in Action (Short Story)
Surtur	Imperial World			Warhammer 40,000 6th Edition Rulebook, pg. 149
Susa				Warhammer 40,000: Rogue Trader, pg. 27
Susa 9				White Dwarf 469, pg. 122 — The Horus Heresy: Armour Through the Ages
Sycorax	Death World	Ultima		White Dwarf 388 (UK), pg. 77
Sygor X				Blood Angels Painting Guide – Sons of Sanguinius, pg. 54
Sylphis II				Codex: Space Marines (7th Edition) — Gladius Strike Force - Space Marine Strike Force
Symeon	Heretic Astartes Recruiting World			Blood Gorgons (Novel), Chapter 2
Synford	Forge World	Obscurus	Calixis Sector, Hazeroth Sub-Sector	Dark Heresy Core Rulebook, pg. 289
Synford II	Forge World	Obscurus	Calixis Sector, Malfian Sub-sector	Dark Heresy Core Rulebook, pg. 288
Syon				The First Heretic (Novel), ch. 17
Syrinx				Horus Rising (Novel), Part One, Chapter Ten
T'au	Tau Sept	Ultima	Capital of the Tau Empire.	Codex: Tau Empire (6th Edition), pg. 28
Tabor	Ocean World / Hive World	Obscurus	Agripinaa Sector	Cadia Stands (Novel), Part 5: Chapter 2
Tabulata				Codex: Blood Angels (8th Edition), pg. 97
Taeloth		Obscurus	Uninhabited	White Dwarf 291 (UK), pg. 96
Tagia Prime				Tallarn: Witness (Short Story)
Tahnel	Civilised World / Ocean World	Solar		White Dwarf 318 (UK), pg. 94
Talasa Prime	Adeptus Astartes Homeworld / Inquisitorial Fortress	Ultima	Deathwatch HQ	White Dwarf 257 (UK), pg. 95
Talassar	Civilised World / Ocean World	Ultima	Part of Ultramar.	Codex: Ultramarines, pg. 14
Talithia	Maiden World		Former site of a colony of the Imperium, until the population was killed by the Eldar.	Munitorum: Shuriken Catapults (Background Book), pgs. 3–4
Tallameder				Grey Talon (Short Story)
Tallarn	Civilised World / Desert World	Tempestus		Desert Raiders (Novel), Chapter 1
Ta-Loc	Quarantined World	Ultima Segmentum	Part of Signus Cluster	Fear to Tread (Novel) - Chapter Five
Taloma Nova				Black Crusade: The Tome of Fate, pg. 6
Talon	Dead World / Adeptus Astartes Homeworld (former)	Ultima	Former home of the Storm Falcons.	Codex: Space Marines (5th Edition), pg. 30
Talsicant				First and Only (Novel) — The Founding (Omnibus), Part Six, Chapter Ten
Talus IV	Adeptus Astartes Homeworld (former)	Obscurus	Former home of the Brazen Claws, overrun by Daemons in 955.M41	Codex: Space Marines (3rd Edition), pg. 37
Tan	Dead World	Ultima	Scoured by Hive Fleet Kraken.	Orphans of the Kraken (Short Story) — Legends of the Space Marines (Anthology), pgs. 264–265
Tanakreg	Dead World / Civilized World (former)			[Help]
Tancred		Obscurus	Known to have depot yards where Bulk clippers of the Isolde pattern come from.	The Inquisition (Background Book), pg. 83
Tanhotep	Tomb World			Codex: Orks (8th Edition), pg. 67 — Kaptin Badrukk
Tanis	Desert World / Adeptus Astartes Recruiting World		Provides Aspirants to the Imperial Fists	But Dust in the Wind (Short Story)
Tanis	Quarantined World / Hive World (former)	Obscurus		Dark Heresy Timeline, pgs. 4–5
Tanith	Dead World / Forest World (former) / Frontier World (former) / Feudal World (former)	Pacificus		First and Only (Novel), Part Two, Chapter One
Taral III				White Dwarf 117 (UK), pg. 38
Taran III	Adeptus Astartes Homeworld		Home of the Storm Warriors Chapter.	The Emperor's Will (Short Story)
Taranagea				Scars (Novel), Chapter 1
Tarentus	Agri World	Ultima	Part of Ultramar.	Codex: Space Marines (8th Edition), pg. 25
Tareska		Ultima		Codex: Tyranids (8th Edition), pg. 22 — The Second Tyrannic War: Terror from the Shadows
Targea				Brotherhood of the Storm (Novella) — Legacies of Betrayal (Anthology), II. Ilya Ravallion
Targus VIII	Hive World			Codex: Space Marines (4th Edition), pg. 46
Taro Primus				Imperial Armour II - Ork, Eldar and Dark Eldar Vehicles for Warhammer 40,000, pg. 19
Tarren IV				White Dwarf 112 (UK), pg. 71 - Adeptus Titanicus: Conqueror! - Robots in Adeptus Titanicus
Tarrenthorst	Agri World (former)		Bombarded by cyclonic torpedoes to stop an Enslaver infestation.	White Dwarf 257 (UK), pg. 95
Tarsis Ultra	Dead World / Agri World (former)	Ultima	Destroyed by the Iron Warriors.	Warriors of Ultramar (Novel) — The Ultramarines Omnibus, Chapter Four, pgs. 324–325
Tartarus	Dead World			Warhammer 40,000: Dawn of War, Single-player campaign
Tash'var	Tau Sept	Ultima	Founded during the Second Sphere of Expansion	Codex: Tau Empire (7th Edition), The Sept Worlds
Taslan's Forge	Forge World			Iron Hands (Novel), Chapter 10, pg. 147
Tassilon				Horus Rising (Novel), Part One, Chapter Ten
Tawka	Xenos World	Ultima	Kroot world, discovered by the T'au during the Third Sphere of Expansion	Warhammer 40,000 5th Edition Rulebook, pg. 170
Taygeta	Jungle World	Obscurus	Near the Eye of Terror.	Warhammer 40,000: Chaos Gate — Target of Opportunity: Taygeta
Tekarn	Imperial World			Codex: Imperial Guard (3rd Edition, 1st Codex), pg. 28
Telemachus	Forge World			Faith and Fire (Novel), Chapter 5, pg. 42
Teleos			Home to the Scholastica Xenosa institute	Attack of the Necron (Novel), Chapter 14
Telias	Unclassified	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Core Rulebook, pgs. 332-333
Teliox Epis	Gas Giant			Blood of Asaheim (Novel), Chapter Eleven
Tellerax Prime				Codex: Chaos Knights (8th Edition), pg. 32
Tellus 15/01	Hive World			White Dwarf November 2017 — Cover Feature: Necromunda
Temaxia	Forge World	Tempestus	Destroyed by Orks in M32.	Imperial Armour Volume Twelve - The Fall of Orpheus, pg. 17
Temperis	Hive World	Pacificus		Warhammer 40,000 5th Edition Rulebook, pg. 116
Temportus			Site of a battle between the Crimson Fists Chapter and Ork Freebooters.	Codex: Space Marines (7th Edition) — The Chronicles of Heroes - Temportus
Temujin's World				Index Imperialis: Apocrypha, pg. 47
Tenebra Prime	Ork World	Ultima	Octarius Sector / Octarius System / Ork Empire of Octarius	White Dwarf 307 (UK), pg. 70
Tephaine	Hive World	Obscurus	Calixis Sector, Adrantis Nebula.	Dark Heresy Core Rulebook, pg. 288
Tephaine Minor	Agri World	Obscurus	Calixis Sector, Adrantis Nebula.	Dark Heresy Core Rulebook, pg. 288
Tephusa Binary	Forge World	Obscurus		Imperial Munitorum Manual (Background Book), Chapter 4, Section 3, pg. 37
Terion	Paradise World		Site of a battle between the Blood Angels and the Night Lords allied to the Brotherhood of Darkness.	Warlords of the Dark Millennium: Dante (Background Book) — The Archangel's Mantle
Teris IX				Wolf King (Novella), Chapter 2
Terminus Prime	Port World	Obscurus	Askellon Sector	Dark Heresy Second Edition: Core Rulebook, pg. 322
Terra	Hive World	Solar	Center of the Imperium of Man	Warhammer 40,000: Rogue Trader, pg. 133
Terraq		Obscurus	Eye of Terror	Codex: Dark Angels (8th Edition), pg. 48 — Belial
Terrax	Imperial World		Home to the Terrax Guard Imperial Guard.	Codex: Imperial Guard (3rd Edition, 2nd Codex), pg. 60
Teruxyne	Quarantined World / Dead World / Colony World (former)	Obscurus	Stricken with the Sinners' Plague disease.	Dark Heresy: The Radical's Handbook, pg. 204
Terzari	War World			Codex Supplement: Salamanders (8th Edition), pg. 44 — The Art of Fire
Tesra IV	Dead World / Relic World (former)		Consumed by Tyranids	Codex Supplement: Angels of Death — Strike Forces: Famous Strike Forces
Tesslan VI	Imperial World			The Emperor's Will (Short Story)
Testament III			Conquered by the Black Legion Daemon Prince Marrovore the Black and his warband.	White Dwarf 370 (UK), pg.101
Tethris	Dead World		Subjected to Exterminatus.	Codex: Tyranids (3rd Edition), pgs. 42–43
Tethys	Feral World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Core Rulebook, pgs. 332-333
Thain				Adeptus Mechanicus: The Enigma of Flesh (Short Story)
Thain II				Index Astartes: Tactical Dreadnought Armour, pg. 13
Thanatos	Tomb World	Ultima	Part of the Oruscar Dynasty.	Codex: Necrons (5th Edition), pg. 15
Thandos IV				The Citadel Journal 9, pg. 34
Thantus X	Xenos World / Agri World (former)		Former Imperial world, fell to an Ork Waaagh! in 899.M40	Munitorum - Vortex Missiles, pgs. 3–4
Thargorum	Desert World	Tempestus		Dawn of War: Dark Crusade: Thargorum (Map Description)
Thassica			Location of a fragment of the Key.	Arks of Omen: Abaddon, pg. 26 — Plans Within Plans
Theld	Death World			White Dwarf 481, pg. 11
Theltheghlyr	Jungle World / Maiden World			Codex: Harlequins (8th Edition), pg. 43 — Blades of Cegorach
Theron	Gas Giant			Redblade (Short Story)
Thesvor II	Tomb World			Warhammer 40,000: Kill Team Core Manual (2nd Edition), pg. 156 — Necron
Thical	Hive World	Obscurus		Black Industries' Calixis Sector (saved archive page, dated 17 February 2008, last accessed 9 July 2024)
Tholus	Exodite World (former)		Purged by the Imperium of Man	Warhammer 40,000 3rd Edition Rulebook, pg. 117
Thoresta				White Dwarf 484, pg. 11
Thoth	Desert World	Pacificus		Codex: Chaos Daemons (4th Edition), pg. 83
Thracian Primaris	Hive World / Industrial World	Obscurus		Codex: Eye of Terror (3rd Edition), pgs. 24-25
Thranx	Dead World / Hive World (former)	Solar	Subjected to Exterminatus	Deathwing (Short Story)
Thrax	Frontier World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Core Rulebook, pgs. 332-333
Threfenia's Reach	War World	Ultima	Nephilim Sector Borders the Pariah Nexus	White Dwarf 455, pg. 75 — War Zone Pariah Nexus
Threnos	Dead World	Obscurus	Calixis Sector / Hazeroth Sub-Sector	Dark Heresy Core Rulebook, pg. 289
Threxia				Space Hulk (Novella), 00.32.88
Thridia	Hive World / Tomb World			Codex: Chaos Daemons (6th Edition), pg. 39
Thruscas Sine			Infested by Nurglite forces	Codex: Chaos Daemons (6th Edition), pg. 36
Thuleya				Wolf King (Novella), Chapter 2
Thuribael	Shrine World			White Dwarf 481, pg. 13
Thylneria	War World / Jungle World			Codex Supplement: Ultramarines (8th Edition), pg. 52 — An Army of Heroes
Tigris	Forge World		Home to the Legio Solaria. Possible confusion with Tigrus.	Titandeath (Novel), Chapter 2
Tigrus	Ork World / Forge World	Ultima	Overrun by Orks in M35	Imperial Armour Volume One - Imperial Guard and Imperial Navy, pg. 8
Tingoya				Imperial Armour - Apocalypse II, pg. 12
Toil	Dead World / Forge World (former)		Destroyed by Perturabo.	Codex: Chaos Space Marines (6th Edition), pg. 22
Tolkhan	Forge World	Tempestus	Home to the Legio Pallidus Mor	Imperial Armour Volume One - Imperial Guard and Imperial Navy, pg. 8
T'olku	Tau Sept / Death World / Jungle World	Ultima		White Dwarf July 2019, pg. 48
Toreus	Dead World		Subjected to Exterminatus in 879.M41	Codex: Chaos Daemons (4th Edition), pgs. 20–21
Torhaven	War World			Codex: Space Marines (7th Edition) — The Chronicles of Heroes — The Torhaven Incident
Torian	Agri World	Obscurus		White Dwarf 291 (UK), pg. 96
Torison VII				Warlords of the Dark Millennium: Huron Blackheart (Background Book), pg. 17
Tornish				The Inquisition (Background Book), pg. 91
Torodaris	Agri World			White Dwarf 481, pg. 10
Torvendis	Daemon World	Ultima	Located in The Maelstrom	Daemon World (Novel), ch. 1
Totha				Index Imperialis: Apocrypha, pg. 47
Traekonnis Major	Adeptus Astartes Homeworld	Ultima	Homeworld of the Avenging Sons Space Marine Chapter.	Imperial Armour Volume Two - Second Edition, pgs. 8–9
Trakonn	Tomb World	Ultima	Crownworld of the Dyvanakh Dynasty.	Codex: Necrons (5th Edition), pg. 17
Tranch	Hive World	Obscurus	Calixis Sector, Adrantis Nebula	Dark Heresy Core Rulebook, pg. 288
Tranquility-II	Feudal World	Ultima		Imperial Armour Volume Ten, pgs. 67–68
Tranquility-III	Desert World		Location of a Mantis Warriors base	Imperial Armour Volume Ten - The Badab War - Part Two, pg. 174
Tranquilla	Agri World			Warhammer World Event - Investigation on Glomus
Translock		Ultima		Orphans of the Kraken (Short Story)
Tranteth V				The Falls of Marakross (Short Story)
Trantis	Tomb World	Tempestus		Codex: Necrons (7th Edition), pg. 12
Trantis IX				White Dwarf 185 (UK), pg. 25
Travonth VI				Black Crusade: The Tome of Blood, pg. 30
Trazolya	War World			Codex: Space Marines (9th Edition), pg. 119 - Crusade Rules
Treconandal		Obscurus		Codex: Imperial Guard (5th Edition), pg. 26
Trentor Prime	War World			Codex Supplement: Iron Hands (8th Edition), pg. 41 - The Flesh is Weak
Trepytos	Civilised World	Solar		[Help]
Triandr	Feudal World			Sons of Dorn (Novel), Chapter 1, pg. 9
Triplex Phall	Forge World	Ultima	Home to the Legio Victorum	Imperial Armour Volume One - Imperial Guard and Imperial Navy, pg. 8
Trontium VI				Warrior Coven (Novel) — Kill Squad: A Deathwatch Omnibus, Chapter 2, pg. 189
Trontiux III	Adeptus Astartes Recruiting World		Provides Aspirants to the Blood Ravens	Dawn of War: Ascension (Novel), Chapter 1
T'ros	T'au Colony / Desert World	Ultima	Formerly known as Taros; site of the Taros Campaign.	Imperial Armour Volume Three - The Taros Campaign, pgs. 18-19
Troudor		Pacificus		Codex: Sisters of Battle (2nd Edition), pg. 41
Troxx	War World			Codex: Space Marines (8th Edition), pg. 71 — Reiver Squads
Tsade	Dead World	Obscurus	Calixis Sector, Josian Reach, Tsade System	Dark Heresy Core Rulebook, pg. 289
Tsade II	Agri World	Obscurus	Calixis Sector, Josian Reach, Tsade System	Dark Heresy Core Rulebook, pg. 289
Tsan Domus		Ultima		Hammer and Anvil (Novel), Chapter 9, pg. 93
Tukaroe VII	Ice World			White Dwarf September 2019, pg. 43
Turanshush	Forge World	Obscurus	Calixis Sector, Markayn Marches	Dark Heresy Core Rulebook, pg. 289
Turren Primus	Hive World			Warhammer 40,000: Dawn of War II - Chaos Rising — Cruelty of Geoffros, wargear selection screen
Tusk	Ork World	Obscurus	Part of the Undred-Undred Teef	Rogue Trader Core Rulebook, pgs. 348–349
Tygress I	Frontier World	Obscurus	Calixis Sector / Drusus Marches	Dark Heresy Core Rulebook, pg. 288
Tygress II	Frontier World	Obscurus	Calixis Sector / Drusus Marches	Dark Heresy Core Rulebook, pg. 288
Tygress III	Feral World	Obscurus	Calixis Sector / Drusus Marches	Dark Heresy Core Rulebook, pg. 288
Tygress IV	Dead World	Obscurus	Calixis Sector / Drusus Marches	Dark Heresy Core Rulebook, pg. 288
Tygress V	Feral World	Obscurus	Calixis Sector / Drusus Marches	Dark Heresy Core Rulebook, pg. 288
Tygriss				Fulgrim (Novel), Chapter 7
Tylannia				Codex: Space Marines (5th Edition), pg. 34 — The Battle of the Sepulchre
Typhon Primaris	Dead World / Feral World (former) / Jungle World (former) / Adeptus Astartes Recruiting World (former) / Exodite World (former) / Ork World (former)	Ultima		Warhammer 40,000: Dawn of War II - Retribution, Planet Profile
Tyran	Dead World / Ocean World (former) / Research Station (former)	Ultima	Site of first contact between the Imperium of Man and the Tyranids in 745.M41	Codex: Tyranids (5th Edition), pgs. 8–9
Tyrama Secundus	Ocean World			Imperial Armour Volume Two (Second Edition), pg. 22
Tyringal	Dead World		Destroyed by the Drukhari	Catachan Devil (Novel), Chapter 33
Tysseris		Ultima	Close to the Ghoul Stars	The Flesh Tithe (Short Story)
U-6743				Blood of Asaheim (Novel), Chapter One
UB-26	Death World			Redemption Corps, Chapter Six, Part I
Ugmok's World	Ork World (former)		Invaded by Daemons of Nurgle in M42	Codex: Chaos Daemons (9th Edition), pg. 42 - Infernal Panoply
Ulan Hûda	Ultima			Legacy of Dorn (Novel), Chapter 6
Ularis Prime				Legacy of Dorn (Novel), Chapter 6
Uldan	Mining World / Jungle World			Dawn of War: Dark Crusade: Hellfire Canyon (Map Description)
Ullden	Agri World (former)			Codex: Chaos Daemons (8th Edition), pg. 53 — Rotigus
Ultak	War World / Hive World			Codex: Space Marines (8th Edition), pg. 76 — Fire Support Squads: Aggressor Squads
Ultra Maximus		Ultima	Temporarily conquered by the T'au	Munitorum: Rail Rifles, pg. 1
Ultra Mundanus		Ultima		Warhammer 40,000 5th Edition Rulebook, pg. 132
Umbador	Agri World			White Dwarf 481, pg. 10
Umbrus		Obscurus		Codex: Space Marines (8th Edition), pg. 56
Unloth	Feral World			Battlefleet Gothic Rulebook, pg. 110
Uolesh	Daemon World	Obscurus		White Dwarf 282 (UK), pg. 21 — The Eye of Terror - Daemon Worlds
Upsilon		Solar	Peripheral bastion of Terra's defences	Codex: Craftworlds (8th Edition), pg. 29 — The Doom of the Aeldari: The Red Tide
Ur-Clemait		Ultima	Human world ruled by the T'au Empire.	Codex: Chaos Space Marines (6th Edition), pg. 23
Ur-Haven			Known to have depot yards where Bulk clippers of the Isolde pattern come from.	Xenos (Novel), Chapter Six
Uralan		Obscurus		Codex: Chaos (2nd Edition), pg. 48
Uralek Prime	Civilized World / Exodite World (former)	Ultima		Codex: Harlequins (8th Edition), pgs. 12–13 — The Great Stage
Urdek	Maiden World (former)		Colonized by the Imperium of Man	White Dwarf December 2017 — Battle Report: Assault on Urdek
Urdesh	Forge World	Pacificus	Sabbat Worlds	Imperial Armour Volume One - Imperial Guard and Imperial Navy, pg. 8
Urk	Ork World			Waaagh! Ghazghkull: A Codex: Orks Supplement, pg. 6
Urkrask				Codex: Dark Angels (8th Edition), pg. 39 — Close Support Squads
Urrghaz				Blood of Asaheim (Novel), Chapter Eleven
Urus		Pacificus	Sabbat Worlds	The Sabbat Worlds Crusade (Background Book), pg. 22
Uttu Prime		Ultima	Formerly Imperial, absorbed into the Necron Sautekh Dynasty in late M41	Codex: Necrons (5th Edition), pg. 21
Uvander				The First Heretic (Novel), Chapter 5
Uzarn				Baneblade (Novel), Interstitial between Chapters 10 & 11, pg. 161
Vakon Alpha	Ice World		Location of the Vakonian Winter Wars.	Warhammer 40,000: Darktide
Valhalla	Civilised World / Ice World	Ultima	Homeworld of the Valhallan Ice Warriors Imperial Guard Regiments.	Codex: Imperial Guard (2nd Edition), pg. 12
Vallyx V	Death World	Ultima	Saved from a massive Genestealer infestation by the Knights of the Raven Chapter.	Dataslate: Reclusiam Command Squad (Background Book) — Notable Reclusiam Command Squads
Valon Urr	Shrine World	Obscurus	Calixis Sector, Golgenna Reach	Dark Heresy Core Rulebook, pg. 288
Valos	Dead World	Ultima		Adeptus Titanicus: The Horus Heresy Rulebook, pg. 63
Valos Krin	Feral World	Obscurus	Calixis Sector / Hazeroth Sub-Sector	Dark Heresy Core Rulebook, pg. 289
Valskalf			Squat world	Warhammer 40,000 Compendium, pg. 42
Vanaheim	Forge World			Imperial Armour Volume One - Imperial Guard and Imperial Navy, pg. 130
Vanantis IX	Hive World			Imperium Nihilus: Vigilus Defiant, pg. 27 — To Summon the Angels of Death
Vanishpoint	Ice World			Codex: T'au Empire (8th Edition), pg. 34 — Armies of the Expanding Empire
Vanqualis	Hive World			[Help]
Vardan	Imperial World		Homeworld to the Vardan Rifles Imperial Guard.	Fifteen Hours (Novel), Chapter Six, pg. 81
Varestus Prime	Death World		Site of battles where the Imperial Guard and Imperial Navy faced Orks.	Codex: Catachans (3rd Edition), pg. 3
Varoli Secundus	Civilised World		Known for its fanatical theocratic government	Imperial Armour Volume One - Imperial Guard and Imperial Navy, pg. 212
Varrnix Prime				White Dwarf 257 (UK), pg. 95
Varsavia	Ice World / Feral World / Adeptus Astartes Homeworld	Ultima	Homeworld of the Silver Skulls.	Warhammer 40,000 5th Edition Rulebook, pg. 132
Varavane	Feudal World			White Dwarf 481, pg. 13
Vastum-01	Forge World (former)		Abandoned once stripped of all resources	The Rose in Anger (Novella), Chapter One
Vaust	Hive World	Pacificus		Imperial Armour Volume One - Imperial Guard and Imperial Navy, pg. 153
Vaxanide	Hive World	Obscurus	Calixis Sector, Malfian Sub-sector	Dark Heresy Core Rulebook, pg. 288
Va'yun	Tau World	Ultima / Eastern Fringe		Codex: Tau Empire (7th Edition), pg. 41, — Relentless Expansion — Darkness Over Va'yun
Vaznagrod	Forge World			Iron Hands (Novel), Chapter 10
Vendorak				Dataslate: Tyrannic War Veterans, pg. 13
Veneris	Shrine World	Obscurus	Calixis Sector, Drusus Marches	Dark Heresy Core Rulebook, pg. 288
Venkrous	Daemon World	Ultima	Eastern Fringe / Hadex Anomaly	Black Crusade Core Rulebook, pg. 315 — Chapter X: A Galaxy in Flames
Veonid			Used to test Imperial weaponry.	Codex: Chaos Daemons (6th Edition), pg. 20
Verdan II	Dead World		Subjected to Exterminatus.	Imperial Armour Volume Two (Second Edition), pg. 22 — Verdan Wars
Verdant			Home to Troth Abhumans.	Warhammer 40,000 6th Edition Rulebook, pg. 405
Verdfall		Pacificus		Crimson Slaughter - A Codex: Chaos Space Marines Supplement (6th Edition) — The Crimson Slaughters Unleashed: Slaughter and Salvation
Verdus Prime	Tomb World			Dawn of War: Dark Crusade: Necron Campaign - Victory Bay (Imperial Guard Stronghold), After Action Report
Verghast	Hive World / Industrial World	Pacificus		Necropolis (Novel), epigraph before Chapter One
Verica VII	Forge World		Home to the Collegia Titanica Legio Sirius.	Priests of Mars (Novel), Microcontent 05, pg. 46
Veridanium	Maiden World		Colonized by the Imperium of Man, reclaimed by Craftworld Ulthwe in M32	Throneworld (Novel), Chapter 6
Veridian	Feral World	Ultima		Codex: Tyranids (2nd Edition), pg. 37
Vernalis	Mining World	Obscurus		Sons of Dorn (Novel), Chapter Eight, pgs. 203–209
Veskepine	Jungle World		Known for its skilled hunters.	Voidsong (Short Story)
Vespertine				Blades of Damocles (Novel), Chapter One
Vespid	Gas Giant	Ultima	Homeworld of the Vespids; part of the T'au Empire	Deathwatch: Mark of the Xenos, pg. 26
Vessos				Tallarn: Witness (Short Story)
Vetrim			Former bond-world to the T'au Empire	Shield of Baal: Exterminatus — Blade of Sanguinius: Commander Dante
Vhomarl				Scars (Novel), Chapter 1
Vhospis	Feudal World			Codex: Chaos Daemons (6th Edition), pg. 38
Vhun				Codex: Imperial Guard (5th Edition), pg. 26 — A Galaxy at War
Victrix Sonora	Agri World	Solar		Grey Knights (Novel), Chapter Five
Victus	Dead World	Obscurus	The first planet of Modren’s Realm.	Rogue Trader: Twilight Crusade, pg. 34
Vidar		Ultima		Codex: Imperial Guard (5th Edition), pg. 27
Vigil	Dead World	Obscurus		Dark Heresy Core Rulebook, pg. 288
Vigilus	Hive World / Sentinel World	Obscurus	Site of the War of Beasts.	Imperium Nihilus: Vigilus Defiant, pgs. 1–20
Vimox				Codex: Dark Angels (8th Edition), pg. 74
Vior'la	Tau Sept	Ultima	Settled during the First Sphere of Expansion	Codex: Tau (3rd Edition), pg. 64
Virger-Mos II	Agri World	Ultima		Liar's Due (Short Story)
Viribius	Feral World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Core Rulebook, pgs. 332-333
Viridia IV	Agri World			Magic: The Gathering's Universes Beyond Warhammer 40,000 - Swords to Plowshares Card Description
Virmerketh				Imperial Knight Companion, pg. 59
Visse'el	Tau Sept	Ultima		Codex: Tau (3rd Edition), page 58
Vitrea Mundi	Adeptus Astartes Homeworld (former)	Ultima	Homeworld of the Marines Mordant Chapter.	Sons of the Hydra (Novel), Part I, Chapter α: The Serpent's Egg
Volchis IV				White Dwarf 388 (UK), pg. 121
Voldarian II				Death From the Skies (7th Edition) — Space Marines — Space Wolves
Volghast				Codex: Space Marines (7th Edition) — The Chronicles of Heroes - The Hunters Hunted
Volonx	Feral World	Obscurus	Calixis Sector, Adrantis Nebula.	Dark Heresy Core Rulebook, pg. 288
Volscar		Obscurus		Codex: Imperial Guard (5th Edition), pg. 26
Voltemand	Civilised World	Pacificus		Ghostmaker (Novel), Chapter Two, pgs. 33–41
Volturn	Civilised World	Pacificus		The Horus Heresy Book Eight - Malevolence, pg. 16
Voluptua	Shrine World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Core Rulebook, pgs. 332-333
Vonsha Smyde IX	War World	Ultima		Gathering Storm: Fracture of Biel-Tan, Chapter 1: Dire Tidings for Biel-Tan - Addenda Inquisitoria
Vorakis	Hive World		Imperium Nihilus	Codex: Chaos Space Marines (9th Edition), pg. 34 - Word Bearers
Vorenz-VI	Penal World			Imperial Armour Volume Eleven - Second Edition: The Doom of Mymeara, pg. 145
Vorg Prime				Fanatic Online #13 - Assault: (Scenario)
Vorgundreel	Agri World			Codex: Adepta Sororitas (10th Edition), pg. 15
Vorlanthus IV	Hive World		Vorlanthus IV's Mirrored Spire suffered an attack by the Berzerker Khârn, who single-handedly killed 12,000 of its citizens.	Warlords of the Dark Millennium: Khârn the Betrayer — An Eight-Fold Path
Vorsk	Ork World / Hive World (former)		Overrun by Ork forces in M41	Imperial Armour Volume One - Imperial Guard and Imperial Navy, pg. 8
Voss Prime	Forge World	Solar	Home to the Legio Invigilata	Imperial Armour Volume One - Imperial Guard and Imperial Navy, pg. 8
Vostroya	Industrial World	Obscurus	Home to the Vostroyan Firstborn Imperial Guard Regiments.	Codex: Imperial Guard (5th Edition), pg. 18 — Vostroyan Firstborn
Voth				Codex: Imperial Knights (6th Edition) — The Time Of Ending — Slaughter on the Fireplains
Vouxis Prime	Civilised World	Obscurus	Askellon Sector	Dark Heresy Second Edition: Core Rulebook, pg. 322
Vraks Prime	Armoury World	Obscurus	Interdicted	Imperial Armour Volume Five - The Siege of Vraks - Part One, pgs. 6–7
Vrantis III	Industrial World			Warp Spawn (Short Story)
V'run	Ork World	Tempestus		Codex: Chaos (2nd Edition), pg. 48
Vulcron	War World / Mining World		Planetary crust damaged by extensive mining	Warhammer 40,000 5th Edition Rulebook, pg. 235
Vulkard IV		Ultima	Volcanic world	War Zone Damocles: Kauyon, pg. 119
Vuthulea II				Codex: Space Marines (8th Edition, 2nd Codex), pg. 105
Warzone Epsilon	War World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Core Rulebook, pgs. 332-333
Wezn	Ice World			Warhammer 40,000: Chaos Gate — Target of Opportunity: Wezn
Wichard				The Inquisition (Background Book), pg. 43
Windhover				The Inquisition (Background Book), pg. 46
Winterhome IX	Ice World	Obscurus		Farseer (Novel), Chapter Four
Woe	Death World	Obscurus	Calixis Sector / Josian Reach	Dark Heresy Core Rulebook, pg. 289
World of Immortal Sorrows	Daemon World / Crone World	Obscurus		Codex: Chaos Daemons (4th Edition), pg. 18
Wormgyre	Xenos World	Pacificus	Home to the Hellgrammite.	Imperial Armour Volume Ten, pgs. 97–98
Xana II	Daemon World / Forge World	Obscurus		The Horus Heresy Book Six - Retribution, pg. 30
Xandros	War World		Site of an ongoing battle between the Ultramarines and Necrons.	Codex: Space Marines (7th Edition) — Chapter Organization
Xanthel	War World / Hive World		Fell to Chaos in M42.	Codex: Aeldari (9th Edition), pg. 68 - Colours of the Asuryani
Xarsis Plethis				Inquisitor Annual 2002, pg. 56
XD-777	Forbidden World	Obscurus	Calixis Sector / The Periphery / Spinward Front	Only War: Core Rulebook, pgs. 332-333
Xeiros Prime	Forbidden World	Obscurus	Calixis Sector, Malfian Sub-sector	Dark Heresy Core Rulebook, pg. 288
Xenax	Adeptus Astartes Homeworld	Solar	Home of the Subjugators.	Codex: Space Marines (5th Edition), pg. 30
Xenrick	War World			Codex: Space Marines (9th Edition), pg. 114 — Crusade Rules
XIII	Dead World			Codex: Khorne Daemonkin (7th Edition) — Slaughter Without End — Gods and Monsters
Xin-Cyn	Dead World / Research Station (former)	Ultima		Deathwatch: Mark of the Xenos, pg. 50
X'irtam	War World / Factory World			Codex Supplement: Iron Hands (8th Edition), pg. 44 — The Flesh is Weak
Xit	Ork World	Ultima		Warhammer 40,000 Chapter Approved - The Book of the Astronomican, pgs. 2–3
Yahkee				War Zone Damocles: Kauyon, pg. 78
Yarant		Solar		Codex: Chaos (2nd Edition), pg. 48
Y'gharnak	Daemon World	Obscurus		White Dwarf 282 (UK), pg. 21 — The Eye of Terror — Daemon Worlds
Ylligith Maeraxes	Daemon World			Codex: Khorne Daemonkin (7th Edition) — Slaughter Without End - Sorcerer's Bane
Ymnar	Forest World			Codex Imperialis (Background Book), pg. 32
Yngirheim	Ice World	Ultima		War Zone Damocles: Kauyon, pg. 118
Yngroth				Codex: Khorne Daemonkin (7th Edition) — Slaughter Without End - Disaster On Yngroth
Ynnen	Feudal World	Ultima		Deathwatch: Know No Fear, pg. 7
Yolaeu				The Outcast Dead (Novel), Chapter 1
Youlemesesh	Maiden World			Rise of the Ynnari: Wild Rider (Novel), Chapter 22
Yrnax				Deathwatch: Honour the Chapter, pg. 133
Ysai Ydumee	Frontier World	Obscurus	Calixis Sector, Drusus Marches	Dark Heresy Core Rulebook, pg. 288
Yspotua	Paradise World (former)			Iron Hands (Novel), Chapter 10, pg. 148
Ystrad	Dead World		Declared Exterminatus to create a firebreak ring around Segmentum Solar deter Tyranids.	The Tithes (Animated Series): Episode 2
Yue	Desert World			Blood Angels Painting Guide – Sons of Sanguinius, pg. 40
Yu'Kanesh	Desert World			[Help]
Yulan	Dead World	Ultima		Warriors of Ultramar (Novel) — The Ultramarines Omnibus, Chapter Four, pg. 324
Yundo				Codex: Space Marines (5th Edition), pg. 34 — The Battle of the Sepulchre
Yyem				Scars (Novel), Chapter 1
Zaga IV		Pacificus		White Dwarf 240 (UK), pgs. 32–33
Zaebus Minoris	Adeptus Astartes Homeworld / Feral World	Tempestus	Home of the Red Scorpions.	Imperial Armour Volume Four - The Anphelion Project, pgs. 121–129
Zakhinta			Contracted to send Adsecularis candidates to Metalica	Imperator: Wrath of the Omnissiah (Novel), Chapter 1
Zalamis				Dawn of War II (Novel), Chapter 2
Zambeque		Obscurus		Codex: Dark Angels (6th Edition), pgs. 36–37
Zantium				Legion (Novel), Part One, Chapter One
Zantragora	Tomb World	Ultima		Codex: Necrons (5th Edition), pg. 13
Zaramund		Obscurus		Angels of Caliban (Novel), Prologue
Zarthan VII	Tomb World			Codex: Adeptus Custodes (9th Edition), pg. 22 - Trajann Valoris
Zavamunda				The Lightning Tower (Short Story)
Zel Primus	Unclassified	Obscurus	Calixis Sector, Drusus Marches	Dark Heresy Core Rulebook, pg. 288
Zel Secundus	Death World	Obscurus	Calixis Sector, Drusus Marches	Dark Heresy Core Rulebook, pg. 288
Zel Tertius	Frontier World	Obscurus	Calixis Sector, Drusus Marches	Dark Heresy Core Rulebook, pg. 288
Zepetis VII				Codex Supplement: Raven Guard (8th Edition), pg. 48 - The Raven's Panoply
Zephath		Ultima	Zepath System, on the edge of Ultramar	Angels of Caliban (Novel), Chapter One
Zephyr	Adeptus Astartes Homeworld	Obscurus	Home of the Storm Hawks.	Codex: Space Marines (5th Edition), pg. 30
Zeran	Forge World			Genefather (Novel), Chapter 15
Zhao-Arkkad	Forge World / Death World	Tempestus		Imperial Armour Volume Eleven - The Doom of Mymeara, pg. 90
Zhodon				Garro: Shield of Lies (Audio Book)
Zhoros	Dead World / Adeptus Astartes Homeworld (former)		Former home of the Fire Hawks; destroyed in M36	Imperial Armour Volume Nine - The Badab War - Part One, pg. 68
Zibal	Desert World			Warhammer 40,000: Chaos Gate — Target of Opportunity: Zibal
Zillman's Domain	Feudal World	Obscurus	Calixis Sector, Josian Reach	Dark Heresy Core Rulebook, pg. 289
Zosma	Forge World	Obscurus		Warhammer 40,000: Chaos Gate — Target of Opportunity: Zosma
Zoran	Ice World			Codex: Blood Angels (5th Edition), pg. 16
Zordion	Death World / Desert World		Imperium Nihilus	White Dwarf 468, pg. 23 - Index Astartes: The Wolfspear
Zumthor	Frontier World	Obscurus	Calixis Sector / Josian Reach	Dark Heresy Core Rulebook, pg. 289
Zurna		Ultima	Eastern Fringe / Vidar Sector	Warhammer 40,000 6th Edition Rulebook, pg. 409
Zweihan's World	Hive World	Obscurus	Calixis Sector / Malfian Sub-sector	Dark Heresy Core Rulebook, pg. 288

See also

• List of Lists
  • Moons (List)

Sources

Note: Only the most important source or sometimes the first source to mention the planet is given. For a full list of sources consult the respective articles.

• 1: Codex: Space Marines (5th Edition), pg. 30
• 2: Imperial Armour Volume Nine - The Badab War - Part One, pgs. 124-126
• 3: White Dwarf 5 (2014), pg. 22
• 4: White Dwarf 349, pg. 55