View source for Known Members of the Ultramarines

{{UltramarinesPortal}}
The following is a list of known members of the [[Ultramarines]] [[Space Marine Legion|Legion]] (later [[Chapter]]) of the [[Adeptus Astartes]].

{{Clear}}
{|class="sortable" align=center border="1" cellpadding="5" cellspacing="0"
|- style=background:#4F4F4F align=center
!width="14%" | Name
!width="12%" | Era
!width="42%" | Notes
!width="32%" | Source(s)
|-
|[[Learchus Abantes|Abantes, Learchus]]
|Post-Heresy ([[M41]])
|[[Space Marine Sergeant|Sergeant]], [[4th Company (Ultramarines)|Fourth Company]]. Temporarily acted as captain of the 4th in the absence of [[Uriel Ventris]]. Leads a [[Tactical Squad]] known as ''The Guardians''.
|[[Nightbringer (Novel)]], {{Cite This}}<br />[[The Chapter's Due (Novel)]], Chapter Eight

|-
|[[Abraxxon]]
|Post-Heresy
|[[Space Marine Captain|Captain]], [[10th Company (Ultramarines)|Tenth Company]].
|[[How to Paint Space Marines]], pg. 40

|-
|[[Gaius Acastian|Acastian, Gaius]]
|
|Member of the [[Deathwatch]].
|

|-
|[[Acastus]]
|Heresy
|[[Space Marine Sergeant|Sergeant]].
|

|-
|[[Achellus]]
|
|[[Techmarine]], [[3rd Company (Ultramarines)|Third company]].
|

|-
|[[Sevastus Acheran|Acheran, Sevastus]]
|Era Indomitus
|[[Space Marine Captain|Captain]], [[2nd Company (Ultramarines)|Second Company]].
|[[Dark Imperium (Novel)]], Chapter 20

|-
|[[Adallus]]
|Heresy
|[[Space Marine Captain|Captain]], [[199th Company (Ultramarines Legion)|199th Company]].
|{{Cite this}}

|-
|[[Adamsu]]
|
|[[Venerable Dreadnought]].
|[[Warhammer: Visions 17]], pgs. 70-71

|-
|[[Adelmo]]
|Post-Heresy ([[M41]])
|[[Deathwatch]] veteran.  Part of a [[Sternguard Veteran]] detachment that fought under [[Ortan Cassius]] to liberate the city of [[Skemarchus]] from the [[Ork]]s.  Killed by an Ork [[Gargant]].
|[[Deathwatch: One Bullet (Short Story)|One Bullet (Short Story)]] - [[Deathwatch: Ignition (Anthology)]]

|-
|[[Adeon]]
|Era Indomitus
|[[Chapter Champion]].
|[[Imperium Nihilus: Vigilus Ablaze]], pgs. 138–139

|-
|[[Admeus]]
|
|Past [[Chapter Master]].
|

|-
|[[Admonius]]
|
|[[Judiciar]].
|[[Indomitus (Novel)]], Chapter 1

|-
|[[Adon]]
|Era Indomitus
|[[Veteran Sergeant]], [[8th Company (Ultramarines)|Eighth Company]].
|[[Of Honour and Iron (Novel)]], Chapter One

|-
|[[Lethro Ados|Ados, Lethro]]
|Era Indomitus
|Member of the [[Victrix Guard]].
|

|-
|[[Nemus Adranus|Adranus, Nemus]]
|Era Indomitus
|Member of the [[Victrix Guard]].
|

|-
|[[Adrasta]]
|Post-Heresy ([[M41]])
|[[Space Marine Captain|Captain]].
|

|-
|[[Adrastean]]
|Era Indomitus
|[[Space Marine Captain|Captain]].
|

|-
|[[Adrastos]]
|
|[[Company Champion]].
|[https://web.archive.org/web/20080411103823/http://uk.games-workshop.com/spacemarines/converted-cmd-sqd/3/ Converted Command Squads], pg. 3

|-
|[[Adremo]]
|Era Indomitus
|[[Primaris]] [[Chaplain]].
|

|-
|[[Adrias]]
|Era Indomitus
|[[Primaris Space Marine|Primaris]], [[3rd Company (Ultramarines)|Third Company]].
|[[Codex: Space Marines (8th Edition)]], pg. 23

|-
|[[Aergon]]
|
|[[Assault Squad|Assault]] [[Space Marine Sergeant|Sergeant]], [[3rd Company (Ultramarines)|Third Company]].
|[[White Dwarf 99 (2015)]] - ''Scourge of the Xenos: Company Specialists''

|-
|[[Aerigulus]]
|Post-Heresy ([[M37]])
|[[Librarian]].
|

|-
|[[Aeschelus]]
|Era Indomitus
|[[Space Marine Captain|Captain]].
|[[Psychic Awakening: Pariah]], pg. 27

|-
|[[Steloc Aethon|Aethon, Steloc]]
|Heresy
|[[Space Marine Captain|Captain]], [[19th Company (Ultramarines Legion)|19th Company]].
|{{Cite this}}

|-
|[[Agathon (Ultramarines)|Agathon]]
|Post-Heresy ([[M41]])
|[[Space Marine Scout|Scout]], [[10th Company (Ultramarines)|Tenth Company]]. Deployed to [[Quintarn]] during the [[Invasion of Ultramar]].
|[[Eye of Vengeance (Short Story)]]

|-
|[[Severus Agemman|Agemman, Severus]]
|Post-Heresy ([[M41]])<br />Era Indomitus
|[[Space Marine Captain|Captain]], [[1st Company (Ultramarines)|First Company]]. Current [[Regent of Ultramar]].
|[[Codex: Space Marines (5th Edition)]], pg. 17

|-
|[[Agies]]
|
|[[Space Marine Dreadnought|Dreadnought]].
|

|-
|[[Agnathio]]
|Post-Heresy ([[M32]])
|[[Chapter Master]]. Helped preserve the Imperium after [[The Beheading]].
|[[Warhammer 40,000 6th Edition Rulebook]], pg. 169

|-
|[[Agnathio (Dreadnought)|Agnathio]]
|Post-Heresy
|[[Space Marine Dreadnought|Dreadnought]], [[2nd Company (Ultramarines)|Second Company]]. Interred after the [[Fall of Chundrabad]].
|[[Codex: Space Marines (5th Edition)]], pgs. 18-19

|-
|[[Agnathio (Librarian)|Agnathio]]
|Era Indomitus
|[[Primaris Librarian]].
|[[Codex: Space Marines (8th Edition, 2nd Codex)]], pgs. 106

|-
|[[Agrippa (Dreadnought)|Agrippa]]
|
|Captain. Led the Ultramarines to cleanse the planet [[Volistad]] of the forces of the [[Ork]] [[warboss]] [[Korga Skroll]]. Later - [[Venerable Dreadnought]].
|[[Final Liberation: Warhammer Epic 40,000]]<br />[[Index Astartes: Dreadnoughts]], pgs. 8-9

|-
|[[Agrippan]]
|
|[[Venerable Dreadnought]], led the Ultramarines against the [[Necron]]s during the [[Damnos Incident]].
|[[Codex: Space Marines (5th Edition)]], pgs. 38-39

|-
|[[Thaddeus Agrippan|Agrippan, Thaddeus]]
|Era Indomitus
|[[Codicier]].
|[[White Dwarf November 2019]], pg. 51

|-
|[[Agrippus (Chaplain)|Agrippus]]
|Post-Heresy
|[[Chaplain]], [[2nd Company (Ultramarines)|Second Company]].
|[[How to Paint Space Marines]], pg. 45

|-
|[[Akanis]]
|Heresy
|Killed during the [[Underworld War]] on [[Calth]] by the [[Gal Vorbak]].
|[[Censure (Short Story)]] — [[Legacies of Betrayal (Anthology)]]

|-
|[[Julianus Akillan|Akillan, Julianus]]
|
|[[Reclusiarch]].
|[[Codex Supplement: Ultramarines (8th Edition)]], pg. 11

|-
|[[Aktis]]
|
|[[Devastator Squad|Devastator]] [[Space Marine Sergeant|Sergeant]], [[4th Company (Ultramarines)|Fourth Company]].
|[[Courage and Honour (Novel)]], {{Cite This}}

|-
|[[Castor Alcade|Alcade, Castor]]
|Heresy
|Legate.
|{{Cite this}}

|-
|[[Alcaeus]]
|Heresy
|Captain.
|

|-
|[[Alexion]]
|Post-Heresy
|[[Company Ancient|Ancient]], [[3rd Company (Ultramarines)|Third Company]].
|[[How to Paint Space Marines]], pg. 48

|-
|[[Alexis (Company Champion)|Alexis]]
|Post-Heresy
|[[Company Champion|Champion]], [[3rd Company (Ultramarines)|Third Company]].
|[[How to Paint Space Marines]], pg. 48

|-
|[[Allectius]]
|Era Indomitus
|[[Assault Intercessor]].
|[[Nexus (Novella)]], Chapter 1

|-
|[[Aloysius]]
|Post-Heresy ([[M41]])
|Member of the [[Ultramarines Honour Guard]]. Died heroically during the [[Battle for Macragge]].
|[[Codex: Tyranids (5th Edition)]], {{Cite This}}

|-
|[[Altarion]]
|
|[[Space Marine Dreadnought|Dreadnought]], [[5th Company (Ultramarines)|Fifth Company]]. Part of a garrison aboard the [[Ramilies]]-class star fort ''[[Indomitable]]'', used against his will as the [[Daemonhost]] by [[M'kar the Thrice Born]].
|[[Iron Warrior (Novella)]], {{Cite This}}<br />[[The Chapter's Due (Novel)]], Chapters Three and Twenty-Three

|-
|[[Amulius]]
|Era Indomitus
|[[Primaris Lieutenant]].
|

|-
|[[Stolos Amyntas|Amyntas, Stolos]]
|
|[[Tetrarch of Ultramar|Tetrarch]] of [[Iax]].
|{{Cite this}}

|-
|[[Anchise]]
|Heresy
|[[Space Marine Sergeant|Sergeant]], [[112th Company (Ultramarines Legion)|112th Company]].
|[[Know No Fear (Novel)]], ''Target//Acquisition'', Chapter 3

|-
|[[Androm]]
|Heresy
|[[Brother]], [[6th Company (Ultramarines Legion)|6th Company]].
|[[Know No Fear (Novel)]], ''Target//Acquisition'', Chapter 3

|-
|[[Andron]]
|Post-Heresy ([[M41]])
|[[Space Marine Lieutenant|Lieutenant]], [[7th Company (Ultramarines)|Seventh Company]].
|[[White Dwarf 97 (UK)]], pg. 42 — ''Index Astartes: Ultramarines''

|-
|[[Andronicus (Dreadnought)|Andronicus]]
|Heresy
|[[Contemptor Dreadnought]], [[22nd Chapter (Ultramarines Legion)|22nd Chapter]].
|[https://www.warhammer-community.com/2022/02/11/fight-the-underground-war-with-new-horus-heresy-missions-and-an-ultramarines-unit/ Warhammer Community: Fight the Underground War with New Horus Heresy Missions and an Ultramarines Unit (Posted on 11/02/2022)] - [https://www.warhammer-community.com/wp-content/uploads/2022/02/iIVebnZrYRFbaDGH.pdf The Battle of Calth: Underworld War PDF], pg. 4 ''(last accessed 25th February 2023)''

|-
|[[Andronicus (Techmarine)|Andronicus]]
|
|[[Techmarine]].
|

|-
|[[Andros]]
|Post-Heresy ([[M31]])
|[[First Captain]] during the [[Great Scouring]].
|

|-
|[[Ankarion]]
|Heresy
|[[Consul-Chaplain]].
|[https://www.warhammer-community.com/2022/02/11/fight-the-underground-war-with-new-horus-heresy-missions-and-an-ultramarines-unit/ Warhammer Community: Fight the Underground War with New Horus Heresy Missions and an Ultramarines Unit (Posted on 11/02/2022)] - [https://www.warhammer-community.com/wp-content/uploads/2022/02/iIVebnZrYRFbaDGH.pdf The Battle of Calth: Underworld War PDF], pg. 3 ''(last accessed 25th February 2023)''

|-
|[[Ankrion]]
|Heresy
|[[Space Marine Sergeant|Sergeant]], [[4th Company (Ultramarines Legion)|4th Company]].
|[[Know No Fear (Novel)]], ''Target//Acquisition'', Chapter 5

|-
|[[Antarius]]
|
|[[Techmarine]] attached to [[Kruger (Ultramarines)|Kruger's]] [[Space Marine Company|company]].
|[[Warhammer 40,000: Chaos Gate]]

|-
|[[Antelion]]
|Post-Heresy ([[M41]])
|[[Tactical Squad|Tactical]] [[Space Marine Sergeant|Sergeant]].
|[[Blades of Damocles (Novel)]], Chapter One

|-
|[[Antigone]]
|
|[[Space Marine Captain|Captain]].
|

|-
|[[Antilochi]]
|Post-Heresy
|[[Epistolary]].
|[[How to Paint Space Marines]], pg. 46

|-
|[[Antilochus]]
|Post-Heresy ([[M41]])
|[[Space Marine Captain|Captain]], [[10th Company (Ultramarines)|Tenth Company]].
|[[Codex: Space Marines (3rd Edition)]], pg. 46

|-
|[[Sharad Antoli|Antoli, Sharad]]
|
|[[Chapter Master]] of the 13th [[Chapter]] during the [[Battle of Calth]]. Killed by [[daemon]]s aboard the ''[[Macragge's Honour]]''.
|[[Know No Fear (Novel)]], ''Target//Engagement'', Chapter Four, pg. 245

|-
|[[Aordus]]
|Post-Heresy ([[M41]])
|[[Assault Squad|Assault Marine]], [[Squad Numitor]], [[8th Company (Ultramarines)|Eighth Company]].
|[[Blades of Damocles (Novel)]], Chapter One

|-
|[[Tulian Aquila|Aquila, Tulian]]
|
|Founder and first [[Chapter Master]] of the [[Doom Eagles]].
|[[The Returned (Short Story)]]

|-
|[[Aradiel (Ultramarines)|Aradiel]]
|
|[[Codicier]].
|[[White Dwarf 72 (2015)]] - ''Psychic Warfare''

|-
|[[Arcadese]]
|Heresy
|
|[[Forgotten Sons (Short Story)]]

|-
|[[Arcan]]
|Post-Heresy ([[M41]])
|[[Space Marine Sergeant|Sergeant]].
|[[Savage Scars (Novel)]], Chapter 3

|-
|[[Archo]]
|Heresy
|[[Space Marine Sergeant|Sergeant]], [[4th Company (Ultramarines Legion)|4th Company]].
|[[Rules of Engagement (Short Story)]]

|-
|[[Jehnnus Ardias|Ardias, Jehnnus]]
|
|[[Space Marine Captain|Captain]], [[3rd Company (Ultramarines)|Third Company]].
|[[Codex: Space Marines (5th Edition)]], pg. 23

|-
|[[Ferren Areios|Areios, Ferren]]
|
|Lieutenant/[[Unnumbered Sons]]
|[[Avenging Son (Novel)]] Dramatis Personae

|-
|[[Argan]]
|Heresy
|[[Deredeo Dreadnought]], [[199th Company (Ultramarines Legion)|199th Company]].
|[https://www.warhammer-community.com/2021/10/04/launch-a-daring-strike-into-the-heart-of-ultramar-with-the-night-lords/ Warhammer Community: Launch a Daring Strike Into the Heart of Ultramar With the Night Lords (Posted on 04/10/2021)] - [https://www.warhammer-community.com/wp-content/uploads/2021/10/92OhQMoHC7I5tbLG.pdf The Defense of Sotha: Aegida's Lament PDF], pg. 3 ''(last accessed 25th February 2023)''

|-
|[[Jacob Arion|Arion, Jacob]]
|Era Indomitus
|[[Primaris Librarian]].
|

|-
|[[Aristede]]
|
|[[Space Marine Dreadnought|Dreadnought]].
|

|-
|[[Ariston]]
|Era Indomitus
|[[Intercessor Squad|Intercessor]].
|[[Of Honour and Iron (Novel)]], Chapter Ten

|-
|[[Arius]]
|Heresy
|[[Techmarine]].
|

|-
|[[Ithro Arkaedron|Arkaedron, Ithro]]
|
|[[Librarian]].
|[[Knights of Macragge (Novel)]], Chapter 4

|-
|[[Arrone]]
|Era Indomitus
|[[Librarian]], [[8th Company (Ultramarines)|Eighth Company]].
|[[Of Honour and Iron (Novel)]], Chapter Two

|-
|[[Artaeon]]
|Heresy
|[[Praetor (Rank)|Praetor]].
|[[The Horus Heresy Book Nine]], pgs. 97-98

|-
|[[Arteus]]
|
|Member of the [[Deathwatch]].
|[[Codex: Deathwatch (8th Edition)]], pg. 15

|-
|[[Keorn Asata|Asata, Keorn]]
|Post-Heresy ([[M41]])
|[[Space Marine Captain|Captain]], [[2nd Company (Ultramarines)|Second Company]] and [[Master of the Ordnance]].
|[[White Dwarf 97 (UK)]], pg. 42 — ''Index Astartes: Ultramarines''

|-
|[[Asclepius]]
|
|[[Vanguard Eliminator]] [[Space Marine Sergeant|Sergeant]].
|[[Kill Team: Elites]], pg. 126

|-
|[[Asklepios]]
|
|[[Apothecary]].
|[https://web.archive.org/web/20080411103823/http://uk.games-workshop.com/spacemarines/converted-cmd-sqd/3/ Converted Command Squads], pg. 3

|-
|[[Asmodius]]
|
|[[Apothecary]] attached to [[Kruger (Ultramarines)|Kruger's]] [[Space Marine Company|company]].
|[[Warhammer 40,000: Chaos Gate]]

|-
|[[Asterus]]
|
|
|

|-
|[[Maxima Atavian|Atavian, Maxima]]
|
|[[Space Marine Sergeant|Sergeant]], [[2nd Company (Ultramarines)|2nd Company]]. His [[Devastator Squad]], nicknamed "The Titan Slayers," was awarded the [[Principex Maxima]] for the destruction of the Renegade Warlord Titan ''Soulmauler''.
|[[Codex: Space Marines (5th Edition)]], pgs. 18-19

|-
|[[Ledo Atheus|Atheus, Ledo]]
|Post-Heresy ([[M41]])
|[[Space Marine Captain|Captain]], [[8th Company (Ultramarines)|Eighth Company]]. Killed during the [[Damocles Crusade]].
|

|-
|[[Athius]]
|
|[[Primaris Librarian]].
|

|-
|[[Athos]]
|
|[[Intercessor Squad|Intercessor]] [[Space Marine Sergeant|Sergeant]], [[2nd Company (Ultramarines)|2nd Company]]. Commander of [[The Sons of Terra]].
|[[Codex: Space Marines (8th Edition)]], pg. 26

|-
|[[Kaen Atreus|Atreus, Kaen]]
|Pre-Heresy<br />Heresy
|[[Praetor (Rank)|Chapter Master]], [[6th Chapter (Ultramarines Legion)|6th Chapter]].
|[[Know No Fear (Novel)]], ''Target//Acquisition'', Chapter 3

|-
|[[Augustin (Dreadnought)|Augustin]]
|
|[[Redemptor Dreadnought]].
|[[Codex Supplement: Ultramarines (8th Edition)]], pgs. 60-61 - The Primarch's Chosen 

|-
|[[Phratus Auguston|Auguston, Phratus]]
|Heresy
|1st [[Chapter Master]].
|{{Cite this}}

|-
|[[Aulus (Ultramarines)|Aulus]]
|
|[[Space Marine Captain|Captain]].
|

|-
|[[Aurian (Captain)|Aurian]]
|
|[[Space Marine Captain|Captain]].
|[[Warhammer: Visions 10]], pgs. 194-199

|-
|[[Aurus (Captain)|Aurus]]
|
|[[Space Marine Captain|Captain]].
|[[Codex: Chaos Daemons (9th Edition)]], pgs. 26-27

|-
|[[Austos]]
|Post-Heresy ([[M41]])
|[[Assault Squad|Assault Marine]], [[Squad Sicarius]], [[8th Company (Ultramarines)|Eighth Company]]. Killed during the [[Damocles Crusade]].
|[[Blades of Damocles (Novel)]], Chapter Two

|-
|[[Marius Avincus|Avincus, Marius]]
|
|Member of the [[Deathwatch]].
|

|-
|[[Evido Banzor|Banzor, Evido]]
|Heresy
|[[Praetor (Rank)|Chapter Master]], [[16th Chapter (Ultramarines Legion)|16th Chapter]].
|[[Roboute Guilliman: Lord of Ultramar (Novel)]], Chapter One

|-
|[[Barkha]]
|Heresy
|[[Space Marine Sergeant|Sergeant]], [[4th Company (Ultramarines Legion)|4th Company]].
|[[Rules of Engagement (Short Story)]]

|-
|[[Basidas]]
|Era Indomitus
|[[Primaris Ancient]].
|

|-
|[[Bellanus]]
|Post-Heresy ([[M41]])
|
|[[How to Paint Space Marines]], pgs. 34 & 41

|-
|[[Bengham]]
|
|[[Veteran]] [[Brother]], [[7th Company (Ultramarines)|7th Company]].
|[[Citadel Combat Cards]]: [[Spacewar]]

|-
|[[Boreas (Ultramarine)|Boreas]]
|
|
|[[Ultramarines - A Warhammer 40,000 Movie]]

|-
|[[Bracius]]
|
|[[Chaplain]].
|

|-
|[[Braellen]]
|Heresy
|[[Brother]], [[6th Company (Ultramarines Legion)|6th Company]].
|[[Know No Fear (Novel)]], ''Target//Acquisition'', Chapter 3

|-
|[[Branter]]
|
|Commander.
|

|-
|[[Briende]]
|Pre-Heresy
|[[Space Marine Captain|Captain]], [[111th Company (Ultramarines Legion)|111th Company]].
|[[Know No Fear (Novel)]], ''Target//Acquisition'', Chapter 3

|-
|[[Brown]]
|Post-Heresy ([[M41]])
|[[Chaplain]], [[1st Company (Ultramarines)|First Company]].
|[[White Dwarf 97 (UK)]], pg. 42 — ''Index Astartes: Ultramarines''

|-
|[[Burrus]]
|Pre-Heresy
|[[Veteran]] [[Tactical Squad|Tactical Marine]], [[22nd Chapter (Ultramarines Legion)|22nd Chapter]].
|[[Roboute Guilliman: Lord of Ultramar (Novel)]], Chapter Six

|-
|[[Butt]]
|Post-Heresy ([[M41]])
|[[Space Marine Lieutenant|Lieutenant]], [[1st Company (Ultramarines)|First Company]].
|[[White Dwarf 97 (UK)]], pg. 42 — ''Index Astartes: Ultramarines''

|-
|[[Leo Caberra|Caberra, Leo]]
|Post-Heresy ([[M41]])
|[[Reclusiarch]].
|[[White Dwarf 97 (UK)]], pg. 48 — ''Index Astartes: Ultramarines''

|-
|[[Maxim Calaginos|Calaginos, Maxim]]
|
|[[Company Ancient]], [[2nd Company (Ultramarines)|2nd Company]].
|[[Codex Supplement: Ultramarines (8th Edition)]], pg. 13

|-
|[[Jovan Calannus|Calannus, Jovan]]
|
|Veteran Sergeant, [[1st Company (Ultramarines)|1st Company]].
|[[Warhammer 40,000 7th Edition Rulebook]]{{Cite this}}

|-
|[[Marneus Augustus Calgar|Calgar, Marneus Augustus]]
|Post-Heresy ([[M41]])<br />Era Indomitus
|Current [[Chapter Master]] and [[Lord Macragge]]. 77th Chapter Master in the history of the Ultramarines.
|[[Chapter Approved 2001]], {{Cite This}}

|-
|[[Calidus (Apothecary)]]
|
|[[Apothecary]] attached to [[Kruger (Ultramarines)|Kruger's]] [[Space Marine Company|company]].
|[[Warhammer 40,000: Chaos Gate]]

|-
|[[Calidus (Terminator)]]
|
|Fifth Terminator Squad, First Company.
|[[Nightbringer (Novel)]], {{Cite This}}

|-
|[[Petronius Caligarus|Caligarus, Petronius]]
|
|[[Space Marine Captain|Captain]].
|

|-
|[[Calistes Orkbane|Calistes]]
|Post-Heresy ([[M36]])
|Known as '''Calistes Orkbane'''. [[Space Marine Captain|Captain]].
|[[Indomitus (Novel)]] part 3 chapter 5

|-
|[[Calistus]]
|
|[[Battle-Brother]], [[2nd Company (Ultramarines)|Second Company]].
|[[Imperium 09]] — ''Ultramarines: Courage and Honour - Personnel Report: Squad Sevastus''

|-
|[[Callimachus]]
|Post-Heresy ([[M41]])
|Member of the [[Deathwatch]].
|[[Blood of Asaheim (Novel)]], Chapter Three

|-
|[[Phaedrus Calpurnius|Calpurnius, Phaedrus]]
|Post-Heresy ([[M41]])
|Member of the [[1st Company (Ultramarines)|First Company]]. Died during the [[Battle for Macragge]].
|[[Crossfire (Novel)]], Chapter Thirteen

|-
|[[Scaero Calpurnius|Calpurnius, Scaero]]
|Post-Heresy (ca. [[M41]])
|[[2nd Company (Ultramarines)|Second Company]]. Great-great-grand-uncle of [[Shira Calpurnia]].
|[[Crossfire (Novel)]], Chapter Thirteen

|-
|[[Lucian Calsius|Calsius, Lucian]]
|
|[[Lieutenant]]
|

|-
|[[Caprico]]
|Era Indomitus
|[[Intercessor Squad|Intercessor]].
|[[Of Honour and Iron (Novel)]], Chapter Ten

|-
|[[Casmir]]
|Heresy
|[[Equerry]] to [[Phratus Auguston]].
|{{Cite this}}

|-
|[[Verus Caspean|Caspean, Verus]]
|Heresy
|2nd [[Chapter Master]].
|{{Cite this}}

|-
|[[Orfeo Cassandar|Cassandar, Orfeo]]
|
|[[Tetrarch of Ultramar|Tetrarch]] of [[Armatura]].
|{{Cite this}}

|-
|[[Cassian]]
|
|[[Space Marine Lieutenant|Lieutenant]].
|{{Cite this}}

|-
|[[Cassian]]
|Pre-Heresy<br />Heresy
|XIII Legion High Command Cadre Invictarius. Killed in action on board ''[[Macragge's Honour]]'' during the [[Battle of Calth]].
|[[The Horus Heresy Book Five - Tempest]], pg. 91

|-
|[[Cassius (Captain)|Cassius]]
|
|[[Space Marine Captain|Captain]].
|

|-
|[[Ortan Cassius|Cassius, Ortan]]
|Post-Heresy ([[M41]])<br />Era Indomitus
|[[Master of Sanctity]] and veteran of the [[Battle of Macragge]], and now leads the [[Tyrannic War Veterans]] into battle.
|[[Codex: Space Marines (5th Edition)]], pgs. 17 & 87

|-
|[[Cassor (Lieutenant)|Cassor]]
|
|[[Space Marine Lieutenant|Lieutenant]].
|[[Codex: Chaos Daemons (9th Edition)]], pgs. 26-27

|-
|[[Arlandus Castallor|Castallor, Arlandus]]
|Era Indomitus
|[[Space Marine Lieutenant|Lieutenant]].
|[[The Wolftime (Novel)]], Dramatis Personae 

|-
|[[Castamedes]]
|
|[[Terminator]].
|[[Kill Team: Elites]], pg. 124 — ''Conquerors of the Killzones''

|-
|[[Thaldus Castor|Castor, Thaldus]]
|
|[[Tactical Marine]].
|

|-
|[[Castus (Epistolary)|Castus]]
|
|[[Epistolary]].
|[[White Dwarf 72 (2015)]] — ''Psychic Warfare''

|-
|[[Castus (Intercessor)|Castus]]
|Era Indomitus
|[[Intercessor Squad|Intercessor]] [[Space Marine Sergeant|Sergeant]].
|

|-
|[[Castus (Lieutenant)|Castus]]
|Era Indomitus
|[[Space Marine Lieutenant|Lieutenant]].
|

|-
|[[Catinus]]
|
|[[Redemptor Dreadnought]].
|[[Codex Supplement: Ultramarines (8th Edition)]], pgs. 60-61 — ''The Primarch's Chosen''

|-
|[[Caudeus]]
|
|[[Space Marine Sergeant|Sergeant]].
|

|-
|[[Centos]]
|
|Venerable Captain.
|

|-
|[[Cerantes]]
|
|[[Space Marine Captain|Captain]]. Captured by [[Trazyn]].
|{{Cite this}}

|-
|[[Cessio]]
|
|[[Company Ancient]], [[4th Company (Ultramarines)|4th Company]].
|[[Codex Supplement: Ultramarines (8th Edition)]], pg. 15

|-
|[[Lysimachus Cestus|Cestus, Lysimachus]]
|Heresy
|Captain, 7th Company.
|[[Battle for the Abyss (Novel)]], {{Cite This}}

|-
|[[Antaro Chronus|Chronus, Antaro]]
|
|"[[The Spear of Macragge]]".
|[[Codex: Space Marines (5th Edition)]], pg. 89

|-
|[[Ulan Cicerus|Cicerus, Ulan]]
|Pre-Heresy
|Chapter Master of the 15th Chapter.
|[[Horus Heresy Book Two Massacre]], pg. 88

|-
|[[Cladius]]
|
|Sergeant
|

|-
|[[Judd Clausel|Clausel, Judd]]
|
|[[Chaplain]], [[4th Company (Ultramarines)|Fourth Company]].
|[[Nightbringer (Novel)]], {{Cite This}}

|-
|[[Colnid]]
|Post-Heresy ([[M41]])
|[[Assault Squad|Assault Marine]], [[Squad Sicarius]], [[8th Company (Ultramarines)|Eighth Company]].
|[[Blades of Damocles (Novel)]], Chapter Two

|-
|[[Christo Columbine|Columbine, Christo]]
|Post-Heresy ([[M41]])
|[[Master of the Ships]].
|[[White Dwarf 97 (UK)]], pg. 42 — ''Index Astartes: Ultramarines''

|-
|[[Commodius]]
|
|[[Venerable Dreadnought]]. Killed during the [[Battle of Corinth]].
|[[Index Astartes I]], pg. 8 — ''Dreadnoughts''

|-
|[[Arrias Cordos|Cordos, Arrias]]
|Heresy
|[[Space Marine Captain|Captain]].
|{{Cite this}}

|-
|[[Cordus]]
|
|Battle-Brother.
|

|-
|[[Cornelus]]
|Post-Heresy
|[[Apothecary]], [[2nd Company (Ultramarines)|Second Company]].
|[[How to Paint Space Marines]], pg. 48

|-
|[[Lucretius Corvo|Corvo, Lucretius]]
|Heresy
|Captain.
|{{Cite this}}

|-
|[[Crassus (Standard Bearer)|Crassus]]
|Post-Heresy
|[[Company Ancient|Ancient]], [[2nd Company (Ultramarines)|Second Company]].
|[[How to Paint Space Marines]], pg. 48

|-
|Crassus
|Post-Heresy
|[[Champion of Chaos|Champion of Khorne]], [[Red Corsairs]].
|Into the Maelstrom (Short Story), [[Into the Maelstrom (Anthology)]], pg. 7

|-
|[[Crastec]]
|Post-Heresy ([[M41]])
|[[Assault Squad|Assault Marine]], [[Squad Numitor]], [[8th Company (Ultramarines)|Eighth Company]].
|[[Blades of Damocles (Novel)]], Chapter Two

|-
|[[Crastor]]
|
|[[Space Marine Sergeant|Sergeant]].
|[[Ultramarines - A Warhammer 40,000 Movie]]

|-
|[[Brutus Cyprian|Cyprian, Brutus]]
|
|Member of the [[4th Company (Ultramarines)|4th Company's]] [[Space Marine Command Squad|Command Squad]], '[[The Swords of Calth]]'. Huge warrior, once smashed a [[Tau]] [[Battlesuit]] open with his bare hands and throttled the pilot.
|[[The Chapter's Due (Novel)]], Chapter Eight

|-
|[[Retius Daceus|Daceus, Retius]]
|
|[[Veteran Sergeant]] of the [[2nd Company (Ultramarines)|Second Company]] [[Space Marine Command Squad|Command Squad]], ''[[The Lions of Macragge]]''.  A scarred veteran, Daceus is depicted with a bionic eye and skilled with his bolter and powerfist.
|[[Codex: Space Marines (5th Edition)]], pg. 18<br />[[Fall of Damnos (Novel)]]{{Cite This}}

|-
|[[Dacia (Ultramarines)|Dacia]]
|
|Veteran Sergeant.
|{{Cite this}}

|-
|[[Dacian]]
|
|Former [[Chapter Master]].
|[[Courage and Honour (Novel)]], Chapter Nineteen

|-
|[[Daelus]]
|Era Indomitus
|[[Techmarine]], [[Chosen of Vespator]].
|[[Belisarius Cawl: The Great Work (Novel)]], Chapter Five

|-
|[[Dalaton]]
|Post-Heresy ([[M41]])
|[[Assault Squad|Assault Marine]], [[Squad Sicarius]], [[8th Company (Ultramarines)|Eighth Company]]. Killed during the [[Damocles Crusade]].
|[[Blades of Damocles (Novel)]], Chapter Two

|-
|[[Saur Damocles|Damocles, Saur]]
|Heresy
|[[Space Marine Captain|Captain]], [[6th Company (Ultramarines Legion)|6th Company]].
|[[Know No Fear (Novel)]], ''Target//Acquisition'', Chapter 3

|-
|[[Daquinne]]
|Post-Heresy ([[M41]])
|[[Space Marine Captain|Captain]], [[8th Company (Ultramarines)|Eighth Company]].
|[[White Dwarf 97 (UK)]], pg. 42 — ''Index Astartes: Ultramarines''

|-
|[[Balthus Dardanus|Dardanus, Balthus]]
|
|17th Chapter Master.
|
|-

|-
|[[Dardinus]]
|
|Captain.
|

|-
|[[Darion]]
|
|[[Epistolary]].
|[[White Dwarf 72 (2015)]] - ''Psychic Warfare''

|-
|[[Darius (Ultramarines)|Darius]]
|
|[[Primaris Space Marine|Primaris]], [[4th Company (Ultramarines)|4th Company]].
|[[Codex: Space Marines (8th Edition)]], pg. 23

|-
|[[Darrios]]
|Era Indomtius
|[[Space Marine Lieutenant|Lieutenant]].
|

|-
|[[Decimus (Ultramarines)|Decimus]]
|
|Part of a garrison upon a [[Ramilies]] class star fort.
|[[Iron Warrior (Novella)]], {{Cite This}}<br />[[The Chapter's Due (Novel)]], Chapters Three and Twenty-Three

|-
|[[Aecus Decimus|Decimus, Aecus]]
|Heresy
|[[Praetor (Rank)|Chapter Master]], [[17th Chapter (Ultramarines Legion)|17th Chapter]].
|{{Cite this}}

|-
|[[Decius (Ultramarines)|Decius]]
|
|
|[[Ultramarines - A Warhammer 40,000 Movie]]

|-
|[[Anthonis Decius|Decius, Anthonis]]
|
|[[Chaplain]].
|[[White Dwarf November 2019]], pg. 51

|-
|[[Tigris Decon|Decon, Tigris]]
|Post-Heresy
|[[Chapter Master]] around the time of the [[Third Founding]].
|[[The Aegidan Oath (Short Story)]] - [[Scythes of the Emperor (Anthology)]]

|-
|[[Dematris]]
|Era Indomitus
|[[Primaris Chaplain]].
|{{Cite this}}

|-
|[[Demeter (Captain)|Demeter]]
|
|[[Primaris]] Captain.
|

|-
|[[Demetrius (Captain)|Demetrius]]
|
|Primaris Captain.
|

|-
|[[Denaris]]
|[[M42]]
|[[Space Marine Sergeant|Sergeant]].
|[[Imperium 10]] - ''Ultramarines: Weapon and Wargear Names''

|-
|[[Denturis]]
|Post-Heresy ([[M41]])
|[[Assault Squad|Assault Marine]], [[Squad Sicarius]], [[8th Company (Ultramarines)|Eighth Company]].
|[[Blades of Damocles (Novel)]], Chapter Two

|-
|[[Dewl]]
|Post-Heresy ([[M41]])
|[[Space Marine Captain|Captain]], [[4th Company (Ultramarines)|Fourth Company]].
|[[White Dwarf 97 (UK)]], pg. 42 — ''Index Astartes: Ultramarines''

|-
|[[Samuel Dexter|Dexter, Samuel]]
|Post-Heresy ([[M41]])
|Also known as "Samus Dexter". [[Master of the Forge]].
|[[White Dwarf 97 (UK)]], pgs. 42, 47, 49, ''Index Astartes - Ultramarines''

|-
|[[Dibus]]
|
|Member of the [[Victrix Guard]].
|[[Imperium 09]] - Ultramarines: Courage and Honour

|-
|[[Dieta]]
|Post-Heresy ([[M41]])
|[[Space Marine Lieutenant|Lieutenant]], [[2nd Company (Ultramarines)|Second Company]].
|[[White Dwarf 97 (UK)]], pg. 42 — ''Index Astartes: Ultramarines''

|-
|[[Diocletian]]
|
|Dreadnought.
|

|-
|[[Uriel Dios|Dios, Uriel]]
|
|Fought as a Scout on [[Espandor]] and during the [[Invasion of Ultramar]].
|[[Defenders of Ultramar (Graphic Novel)]], Chapter One<br />[[The Chapter's Due (Novel)]], Chapter Four

|-
|[[Jorvan Dolomel|Dolomel, Jorvan]]
|Heresy
|Centurion.
|

|-
|[[Alcius Dolor|Dolor, Alcius]]
|
|[[Battle-Brother]], [[2nd Company (Ultramarines)|Second Company]].
|[[Imperium 09]] - ''Ultramarines: Courage and Honour - Personnel Report: Squad Sevastus''

|-
|[[Valentus Dolor|Dolor, Valentus]]
|
|[[Tetrarch of Ultramar|Tetrarch]] of [[Occluda]].
|{{Cite this}}

|-
|[[Dominastos]]
|Post-Heresy ([[M41]])
|[[Assault Squad|Assault Marine]], [[Squad Numitor]], [[8th Company (Ultramarines)|Eighth Company]].
|[[Blades of Damocles (Novel)]], Chapter Two

|-
|[[Domitian (Heresy)|Domitian]]
|Heresy
|[[Space Marine Sergeant|Sergeant]], [[6th Company (Ultramarines Legion)|6th Company]].
|[[Know No Fear (Novel)]], ''Target//Acquisition'', Chapter 3

|-
|[[Domitian (Primaris)|Domitian]]
|Era Indomitus
|[[Hellblaster Squad|Hellblaster]] [[Space Marine Sergeant|Sergeant]], [[Fulminata]].
|[[Blood of Iax (Novel)]], ''Dramatis Personae''

|-
|[[Vael Donatus|Donatus, Vael]]
|Post-Heresy ([[M41]])
|[[Sternguard Veteran]]. Currently serving with the [[Deathwatch]].
|[[Deathwatch: One Bullet (Short Story)|One Bullet (Short Story)]] - [[Deathwatch: Ignition (Anthology)]]<br />[[Deathwatch: Cepheus (Short Story)|Cepheus (Short Story)]] - [[Deathwatch: Ignition (Anthology)]]

|-
|[[Donnon]]
|Post-Heresy ([[M41]])
|[[Chaplain]] of the [[5th Company (Ultramarines)|Fifth Company]].
|[[White Dwarf 97 (UK)]], pg. 42 — ''Index Astartes - Ultramarines''

|-
|[[Doreios]]
|Post-Heresy ([[M41]])
|[[Space Marine Scout|Scout]], [[10th Company (Ultramarines)|Tenth Company]].
|[[Eye of Vengeance (Short Story)]]

|-
|[[Dorian (Dreadnought)|Dorian]]
|Heresy
|[[Contemptor Dreadnought]], [[22nd Chapter (Ultramarines Legion)|22nd Chapter]].
|[https://www.warhammer-community.com/2022/02/11/fight-the-underground-war-with-new-horus-heresy-missions-and-an-ultramarines-unit/ Warhammer Community: Fight the Underground War with New Horus Heresy Missions and an Ultramarines Unit (Posted on 11/02/2022)] - [https://www.warhammer-community.com/wp-content/uploads/2022/02/iIVebnZrYRFbaDGH.pdf The Battle of Calth: Underworld War PDF], pg. 4 ''(last accessed 25th February 2023)''

|-
|[[Fimor Dour|Dour, Fimor]]
|Post-Heresy ([[M41]])
|Also known as "Fimus Dour". [[Master of the Household]].
|[[White Dwarf 97 (UK)]], pg. 42, 47, 49, ''Index Astartes - Ultramarines''

|-
|[[Draco (Ultramarines)|Draco]]
|Post-Heresy ([[M41]])
|[[Space Marine Scout|Scout]], [[10th Company (Ultramarines)|Tenth Company]]. Killed on [[Quintarn]] during the [[Invasion of Ultramar]].
|[[Eye of Vengeance (Short Story)]]

|-
|[[Drekos]]
|Post-Heresy ([[M41]])
|[[Apothecary]], [[8th Company (Ultramarines)|Eighth Company]].
|[[Blades of Damocles (Novel)]], Chapter Two

|-
|[[Drusus (Ultramarines)|Drusus]]
|Heresy
|Member of the [[Red-marked]]. Killed by a [[World Eaters|World Eater]] aboard the ''[[Dark Sacrament]]''.
|[[Deathfire (Novel)]], Chapter Two

|-
|[[Drusus (Librarian)]]
|
|Librarian attached to [[Kruger (Ultramarines)|Kruger's]] [[Space Marine Company|company]].
|[[Warhammer 40,000: Chaos Gate]]

|-
|[[Duolor]]
|Post-Heresy ([[M41]])
|[[Assault Squad|Assault Marine]], [[Squad Numitor]], [[8th Company (Ultramarines)|Eighth Company]].
|[[Blades of Damocles (Novel)]], Chapter One

|-
|[[Dymas]]
|Pre-Heresy
|[[Techmarine]], [[Destroyer Marine|Second Destroyer Company]], [[22nd Chapter (Ultramarines Legion)|22nd Chapter]].
|[[Roboute Guilliman: Lord of Ultramar (Novel)]], Chapter Nine

|-
|[[Laus Edros|Edros, Laus]]
|Heresy
|Captain.
|{{Cite this}}

|-
|[[Vieron Ekarr|Ekarr, Vieron]]
|Heresy
|[[Centurion (Rank)|Centurion]], [[199th Company (Ultramarines Legion)|199th Company]].
|[https://www.warhammer-community.com/2021/10/04/launch-a-daring-strike-into-the-heart-of-ultramar-with-the-night-lords/ Warhammer Community: Launch a Daring Strike Into the Heart of Ultramar With the Night Lords (Posted on 04/10/2021)] - [https://www.warhammer-community.com/wp-content/uploads/2021/10/92OhQMoHC7I5tbLG.pdf The Defense of Sotha: Aegida's Lament PDF], pg. 3 ''(last accessed 25th February 2023)''

|-
|[[Ekritus]]
|Heresy
|[[Space Marine Captain|Captain]], [[111th Company (Ultramarines Legion)|111th Company]].
|[[Know No Fear (Novel)]], ''Target//Acquisition'', Chapter 3

|-
|[[Eleus (Ultramarines)|Eleus]]
|Post-Heresy ([[M41]])
|
|[[How to Paint Space Marines]], pgs. 34 & 37

|-
|[[Klord Empion|Empion, Klord]]
|Heresy
|9th [[Chapter Master]].
|[[Roboute Guilliman: Lord of Ultramar (Novel)]], Chapter One

|-
|[[Endrion (Ultramarines)|Endrion]]
|Post-Heresy ([[M41]])
|[[Assault Squad|Assault Marine]], [[Squad Sicarius]], [[8th Company (Ultramarines)|Eighth Company]]. Killed during the [[Damocles Crusade]].
|[[Blades of Damocles (Novel)]], Chapter One

|-
|[[Enitor]]
|Post-Heresy ([[M41]])
|[[Veteran Space Marine|Veteran Marine]].
|[[Blades of Damocles (Novel)]], Chapter Three

|-
|[[Eothrus]]
|Era Indomitus
|[[Lieutenant (Space Marines)|Lieutenant]].
|

|-
|[[Maximus Epathus|Epathus, Maximus]]
|Post-Heresy ([[M41]])<br />Era Indomitus
|6th Company Captain
|

|-
|[[Ephor]]
|
|Assault Marine, 4th Company. 
|[[Courage and Honour (Novel)]], {{Cite This}}

|-
|[[Ethaius]]
|Post-Heresy
|[[Techmarine]].
|[[Codex Supplement: Angels of Death (7th Edition)]], pgs. 14-15

|-
|[[Eucladous]]
|
|[[Chaplain]]
|

|-
|[[Evexian]]
|Heresy
|[[Space Marine Captain|Captain]], [[7th Company (Ultramarines Legion)|7th Company]].
|[[Rules of Engagement (Short Story)]]

|-
|[[Exelloria]]
|Era Indomitus
|[[Chaplain]].
|[[Indomitus (Novel)]] Part 2 chapter 8

|-
|[[Mikael Fabian|Fabian, Mikael]]
|
|[[Space Marine Captain|Captain]], [[3rd Company (Ultramarines)|Third Company]] and [[Master of the Arsenal]].
|[[Codex: Space Marines (5th Edition)]], pg. 17

|-
|[[Falerius]]
|
|[[Space Marine Lieutenant|Lieutenant]].
|[[Nexus (Novella)]] Chapter 1

|-
|[[Felidus]]
|
|[[Sternguard Veteran]].
|[[Deathwatch: One Bullet (Short Story)|One Bullet (Short Story)]] — [[Deathwatch: Ignition (Anthology)]]

|-
|[[Decimus Androdinus Felix|Felix, Decimus Androdinus]]
|Era Indomitus
|[[Primaris Marine]], Captain
|[[Dark Imperium (Novel)]] {{Cite this}}

|-
|[[Iulus Fennion|Fennion, Iulus]]
|
|[[Tactical Squad|Tactical Sergeant]], 'The Immortals', [[2nd Company (Ultramarines)|Second Company]]. Squad Fennion has not taken a single casualty in over 200 years.
|[[Codex: Space Marines (5th Edition)]], pgs. 18-19 & pg. 40

|-
|[[Ferio]]
|
|[[Space Marine Dreadnought|Dreadnought]].
|[[Imperial Armour Volume Two (First Edition)]], pg. 139

|-
|[[Ferox (Dreadnought)|Ferox]]
|
|[[Space Marine Dreadnought|Dreadnought]], [[2nd Company (Ultramarines)|Second Company]].
|[[Codex: Space Marines (7th Edition)]] — ''Ultramarines Chapter''

|-
|[[Ferrous]]
|
|[[Space Marine Dreadnought|Dreadnought]].
|

|-
|[[Fierelus]]
|Pre-Heresy
|[[Space Marine Scout|Scout]], [[223rd Company (Ultramarines Legion)|223rd Company]].
|[[Roboute Guilliman: Lord of Ultramar (Novel)]], Chapter Four

|-
|[[Eben Frain|Frain, Eben]]
|
|[[Tetrarch of Ultramar|Tetrarch]] of [[Occluda]].
|{{cite this}}

|-
|[[Fulgarr]]
|
|[[Librarian]].
|

|-
|[[Furian (Primaris Chaplain)|Furian]]
|Era Indomitus
|[[Primaris]] [[Chaplain]].
|

|-
|[[Gabinius]]
|
|[[Redemptor Dreadnought]].
|[[Codex: Space Marines (9th Edition)]], pg. 59

|-
|[[Marius Gage|Gage, Marius]]
|Heresy
|[[Chapter Master]], [[1st Chapter (Ultramarines Legion)|First Chapter]].
|[[Know No Fear (Novel)]], ''Target//Acquisition'', Chapter 3, pg. 39-44

|-
|[[Lethus Gaiun|Gaiun, Lethus]]
|
|[[Tactical Marine]].
|

|-
|[[Gaiunus]]
|
|[[Chaplain]].
|[[Kill Team: Elites]], pg. 124 - ''Conquerors of the Killzones''

|-
|[[Gaius (Apothecary)|Gaius]]
|
|[[Apothecary]].
|

|-
|[[Gaius (Captain)|Gaius]]
|
|[[Space Marine Captain|Captain]], [[4th Company (Ultramarines)|Fourth Company]].
|[[How to Paint Space Marines]], pg. 35

|-
|[[Gaius (Chaplain)|Gaius]]
|
|Chaplain.
|

|-
|[[Gaius (Ultramarines Terminator)]]
|
|Second Terminator Squad, First Company.
|[[Nightbringer (Novel)]], {{Cite This}}

|-
|[[Erikon Gaius|Gaius, Erikon]]
|Heresy
|[[Space Marine Captain|Captain]], [[21st Company (Ultramarines Legion)|21st Company]]. Hero of the Hadir uprising, also known as Gaius the Strong and Gaius the Unflinching.
|[[Garro: Oath of Moment (Audio Book)]]

|-
|[[Galatan]]
|
|[[Ancient]] and Bearer of the [[Banner of Macragge]] (Dec.)
|[[White Dwarf 264 (UK)]], pg. 47

|-
|[[Galatian]]
|Post-Heresy ([[M41]])
|[[Tactical Squad|Tactical Marine]], [[Squad Romulus]], [[2nd Company (Ultramarines)|Second Company]].
|[[How to Paint Space Marines]], pg. 34

|-
|[[Caito Galenus|Galenus, Caito]]
|
|Captain of the 5th Company as of 999.[[M41]].
|[[Codex: Space Marines (5th Edition)]], pg. 17

|-
|[[Galesus]]
|
|1st Company Veteran, [[Deathwatch]] member
|

|-
|[[Antonius Galeus|Galeus, Antonius]]
|Pre-Heresy
|[[Chapter Master]].
|{{Cite this}}

|-
|[[Garus]]
|
|[[Venerable Dreadnought]].
|{{Cite this}}

|-
|[[Dothran Garus|Garus, Dothran]]
|
|[[Tactical Marine]]
|

|-
|[[Gauis]]
|
|[[Librarian]], [[Deathwatch]] member.
|

|-
|[[Gereon (Chaplain)|Gereon]]
|
|[[Chaplain]].
|[[Codex: Space Marines (8th Edition, 2nd Codex)]], pgs. 106 - ''Strike Force Acheran''

|-
|[[Gerius]]
|
|[[Venerable Dreadnought]].
|

|-
|[[Gerostus]]
|
|[[Space Marine Captain|Captain]].
|[[Codex Supplement: Ultramarines (8th Edition)]], pg. 18

|-
|[[Gerrundium]]
|
|[[Primaris Librarian]].
|

|-
|[[Gheris]]
|
|Captain.
|[[Indomitus (Novel)]] Part 2 chapter 10

|-
|[[Glavius]]
|Post-Heresy ([[M41]])
|[[Assault Squad|Assault Marine]], [[Squad Sicarius]], [[8th Company (Ultramarines)|Eighth Company]].
|[[Blades of Damocles (Novel)]], Chapter One

|-
|[[Drakus Gorod|Gorod, Drakus]]
|Heresy
|[[Invictarus]] commander.
|{{Cite this}}

|-
|[[Gratus]]
|
|[[Chaplain]] attached to [[Kruger (Ultramarines)|Kruger's]] [[Space Marine Company|company]].
|[[Warhammer 40,000: Chaos Gate]]

|-
|[[Roboute Guilliman|Guilliman, Roboute]]
|
|[[Primarch]].
|[[Codex: Ultramarines (2nd Edition)]], pg. 9

|-
|[[Habron]]
|Pre-Heresy
|[[Techmarine]].
|[[Roboute Guilliman: Lord of Ultramar (Novel)]], Chapter Three

|-
|[[Livius Hadrianus|Hadrianus, Livius]]
|
|Member of the [[4th Company (Ultramarines)|4th Company's]] [[Space Marine Command Squad|command squad]], '[[The Swords of Calth]]'.
|[[The Chapter's Due (Novel)]], Chapter Eight

|-
|[[Hadrius]]
|Heresy
|Killed in the [[Underworld War]].
|[[Censure (Short Story)]] — [[Legacies of Betrayal (Anthology)]]

|-
|[[Hajadin]]
|Post-Heresy ([[M41]])
|[[Space Marine Lieutenant|Lieutenant]], [[6th Company (Ultramarines)|Sixth Company]].
|[[White Dwarf 97 (UK)]], pg. 42 — ''Index Astartes: Ultramarines''

|-
|[[Hargellus]]
|Heresy
|Killed in the [[Underworld War]].
|[[Censure (Short Story)]] — [[Legacies of Betrayal (Anthology)]]

|-
|[[Harkus (Ultramarines)|Harkus]]
|
|[[Techmarine]], [[4th Company (Ultramarines)|4th Company]]. Mortally wounded during the 2nd Battle of Pavonis, now entombed within a dreadnought.
|[[Nightbringer (Novel)]], {{Cite This}};<br />[[The Chapter's Due (Novel)]], {{Cite This}}

|-
|[[Hektor]]
|Heresy
|Captain.
|{{Cite this}}

|-
|[[Helicus]]
|
|[[Standard Bearer]].
|

|-
|[[Helios]]
|Era Indomitus
|[[Chaplain]], [[8th Company (Ultramarines)|Eighth Company]].
|[[Of Honour and Iron (Novel)]], Chapter One

|-
|[[Corpus Helix|Helix, Corpus]]
|
|[[Master of the Apothecarion]].
|[[Codex: Space Marines (5th Edition)]], {{Cite This}}

|-
|[[Helixus (Ultramarines)|Helixus]]
|Post-Heresy ([[M41]])
|[[2nd Company (Ultramarines)|Second Company]].
|[[How to Paint Space Marines]], pgs. 34 & 36

|-
|[[Hellios]]
|Era Indomitus
|[[Space Marine Captain|Captain]], [[8th Company (Ultramarines)|Eighth Company]].
|[[Codex: Space Marines (9th Edition)]], pg. 59

|-
|[[Helveticus]]
|
|[[Ancient]] and Bearer of the [[Banner of Macragge]] (Dec.).
|[[Chapter Approved 2001]], {{Cite This}}

|-
|[[Heraphus]]
|
|Former Captain
|[[Indomitus (Novel)]] Part 2 chapter 3

|-
|[[Hierax]]
|Heresy
|[[Space Marine Captain|Captain]], Second Destroyer Company, [[22nd Chapter (Ultramarines Legion)|22nd Chapter]].
|[[Roboute Guilliman: Lord of Ultramar (Novel)]], Chapter One

|-
|[[Honoria (Ultramarines)|Honoria]]
|Heresy
|[[Space Marine Captain|Captain]], [[23rd Company (Ultramarines Legion)|23rd Company]].
|[[Rules of Engagement (Short Story)]]

|-
|[[Huym]]
|Post-Heresy ([[M41]])
|[[Space Marine Captain|Captain]], [[5th Company (Ultramarines)|Fifth Company]].
|[[White Dwarf 97 (UK)]], pg. 42 — ''Index Astartes: Ultramarines''

|-
|[[Hypax]]
|
| 
|[[Ultramarines - A Warhammer 40,000 Movie]]

|-
|[[Iairos]]
|
|Member of the [[Deathwatch]].
|{{Cite this}}

|-
|[[Iason]]
|Era Indomitus
|[[Inceptor Squad|Inceptor]], [[Squad Theron]].
|[[Of Honour and Iron (Novel)]], Chapter Eight

|-
|[[Eleon Iasus|Iasus, Eleon]]
|Pre-Heresy<br />Heresy
|[[Praetor (Rank)|Chapter Master]], [[22nd Chapter (Ultramarines Legion)|22nd Chapter]].
|[[Roboute Guilliman: Lord of Ultramar (Novel)]], Chapter One

|-
|[[Giulus Icaris|Icaris, Giulus]]
|[[M42]]
|[[Space Marine Sergeant|Sergeant]]
|[[Imperium 10]] - ''Ultramarines: Weapon and Wargear Names''

|-
|[[Ichrius]]
|
|[[Venerable Dreadnought]].
|

|-
|[[Idaeus]]
|
|4th Company Captain, former.
|

|-
|[[Gaius Idaeus|Idaeus, Gaius]]
|Post-Heresy ([[M41]])
|[[Space Marine Captain|Captain]], [[1st Company (Ultramarines)|First Company]]. Fell in battle with the [[Necron]] [[Sautekh Dynasty]] and interred in a [[Dreadnought]].
|[[Warhammer 40,000 7th Edition Rulebook]]{{Cite this}}

|-
|[[Idu]]
|Post-Heresy ([[M41]])
|[[Space Marine Lieutenant|Lieutenant]], [[9th Company (Ultramarines)|Ninth Company]].
|[[White Dwarf 97 (UK)]], pg. 42 — ''Index Astartes: Ultramarines''

|-
|[[Indomator]]
|
|[[Redemptor Dreadnought]].
|

|-
|[[Ruben Indusio|Indusio, Ruben]]
|Heresy
|Captain.
|

|-
|[[Saul Invictus|Invictus, Saul]]
|Post-Heresy ([[M41]])
|[[Space Marine Captain|Captain]], [[1st Company (Ultramarines)|First Company]]. Killed during the [[Battle of Macragge]].
|[[Codex: Ultramarines (2nd Edition)]], {{Cite This}}

|-
|[[Iodus]]
|
|[[Vanguard Suppressor]] Sergeant.
|[[Kill Team: Elites]], pg. 126 - ''Conquerors of the Killzones''

|-
|[[Ionsian]]
|Post-Heresy ([[M41]])
|[[Assault Squad|Assault Marine]], [[Squad Sicarius]], [[8th Company (Ultramarines)|Eighth Company]].
|[[Blades of Damocles (Novel)]], Chapter One

|-
|[[Irin]]
|Era Indomitus
|[[Assault Squad|Assault Marine]], [[Squad Pomibius]], [[8th Company (Ultramarines)|Eighth Company]]. Killed during a combat drop on [[Meto]].
|[[Of Honour and Iron (Novel)]], Chapter Six

|-
|[[Issam]]
|
|Scout Sergeant. Fought in this capacity in the [[Second Battle For Pavonis]] and during the [[Invasion of Ultramar]].
|[[Chapter Approved 2001]], {{Cite This}};<br />[[Courage and Honour (Novel)]], {{Cite This}}

|-
|[[Gerad Ixion|Ixion, Gerad]]
|
|[[Space Marine Captain|Captain]], [[7th Company (Ultramarines)|Seventh Company]] and [[Chief Victualler]].
|[[Codex: Space Marines (5th Edition)]], pg. 17<br />[[Codex Supplement: Ultramarines (8th Edition)]], pg. 18

|-
|[[Ullyious Ixion|Ixion, Ullyious]]
|
|[[Assault Squad|Assault Sergeant]] of 'Macragge's Avengers', Second Company. Experts at fighting [[Tyranids]] and have faced hive fleets [[Leviathan]], [[Kraken]] and [[Jormungandr]].
|[[Codex: Space Marines (5th Edition)]], pgs. 18-19;<br />[[Codex: Space Marines (5th Edition)]], pg. 40;<br />[[The Chapter's Due (Novel)]], {{Cite This}}

|-
|[[Ixios]]
|
|Assault Marine, 4th Company. 
|[[Courage and Honour (Novel)]], {{Cite This}}

|-
|[[Jonas (Ultramarines)|Jonas]]
|
|[[Lieutenant (Space Marine)|Brother-Lieutenant]] and [[Company Champion|Marine Champion]].
|[[Citadel Combat Cards]]: [[Spacewar]]

|-
|[[Jovan]]
|
|[[Veteran Sergeant]].
|

|-
|[[Julio]]
|
|Sergeant, Fourth Squad, First Company.
|[[Dark Imperium (Novel)]]{{Cite this}}

|-
|[[Junius]]
|
|Former Captain.
|

|-
|[[Junor]]
|
|
|[[Ultramarines - A Warhammer 40,000 Movie]]

|-
|[[Justarius]]
|
|[[Contemptor Dreadnought]]. Fought in the [[Battle for Calth]].
|[[White Dwarf September 2016]], pg. 50 - ''The Horus Heresy: Betrayal At Calth''

|-
|[[Kaetan]]
|
|[[Scout Sergeant]], [[10th Company (Ultramarines)|Tenth Company]]. Deployed to [[Quintarn]] during the [[Invasion of Ultramar]].
|[[Eye of Vengeance (Short Story)]]

|-
|[[Kaetoros]]
|Post-Heresy ([[M41]])
|[[Assault Squad|Assault Marine]], [[Squad Sicarius]], [[8th Company (Ultramarines)|Eighth Company]].
|[[Blades of Damocles (Novel)]], Chapter Two

|-
|[[Karrack]]
|
|[[Space Marine Captain|Captain]].
|

|-
|[[Karziel]]
|
|Former [[Space Marine Captain|Captain]] of the [[5th Company (Ultramarines)|5th Company]].
|

|-
|[[Kastor (Chaplain)|Kastor]]
|
|[[Primaris Chaplain]].
|

|-
|[[Kellion]]
|
|[[Veteran Sergeant]], [[Squad Kellion]], [[2nd Company (Ultramarines)|2nd Company]].
|[[Codex: Space Marines (8th Edition)]], pg. 26

|-
|[[Keritraeus]]
|
|[[Primaris Librarian]].
|{{Cite this}}

|-
|[[Kletos]]
|Pre-Heresy
|2nd [[Destroyer Marine|Destroyer]] Company, 22nd Chapter.
|[[The Horus Heresy Book Five - Tempest]] pg. 95

|-
|[[Klion]]
|
|XIII Legion Terminator Elite. Forty-five year veteran by the time of the [[Battle of Calth]].
|[[The Horus Heresy Book Five - Tempest]] pg. 92

|-
|[[Kruger (Ultramarines)|Kruger]]
|
|[[Space Marine Captain|Captain]].
|[[Warhammer 40,000: Chaos Gate]]

|-
|[[Kull]]
|Post-Heresy ([[M41]])
|[[Space Marine Captain|Captain]], [[9th Company (Ultramarines)|Ninth Company]].
|[[White Dwarf 97 (UK)]], pg. 42 — ''Index Astartes: Ultramarines''

|-
|[[Tablin Kyn|Kyn, Tablin]]
|
|Member of the [[Deathwatch]].
|

|-
|[[Kyros]]
|Era Indomitus
|[[Intercessor Squad|Intercessor]].
|[[Of Honour and Iron (Novel)]], Chapter Ten

|-
|[[Kyth]]
|Era Indomitus
|[[Assault Squad|Assault Marine]], [[Squad Pomibius]], [[8th Company (Ultramarines)|Eighth Company]]. Killed during a combat drop on [[Meto]].
|[[Of Honour and Iron (Novel)]], Chapter Six

|-
|[[Laches]]
|Pre-Heresy
|[[Space Marine Captain|Captain]], First Destroyer Company, [[22nd Chapter (Ultramarines Legion)|22nd Chapter]].
|[[Roboute Guilliman: Lord of Ultramar (Novel)]], Chapter Two

|-
|[[Laethor]]
|
|[[Assault Squad|Assault]] [[Space Marine Sergeant|Sergeant]], [[3rd Company (Ultramarines)|Third Company]].
|[[White Dwarf 99 (2015)]] - ''Scourge of the Xenos: Company Specialists''

|-
|[[Laevius]]
|Pre-Heresy<br />Heresy
|[[Space Marine Dreadnought|Dreadnought]], Second Destroyer Company, 22nd Chapter.
|[[Roboute Guilliman: Lord of Ultramar (Novel)]], Chapter Eight

|-
|[[Eikos Lamiad|Lamiad, Eikos]]
|Heresy
|[[Tetrarch of Ultramar|Tetrarch]] of [[Konor]].
|[[Know No Fear (Novel)]], ''Target//Acquisition'', Chapter 5

|-
|[[Larynz]]
|
|[[Veteran Sergeant]], [[3rd Company (Ultramarines)|Third Company]].
|

|-
|[[Lazarus (Ultramarines)|Lazarus]]
|Post-Heresy ([[M41]])
|[[Space Marine Sergeant|Sergeant]], [[7th Company (Ultramarines)|Seventh Company]].
|[[White Dwarf 97 (UK)]], pg. 49 — ''Index Astartes: Ultramarines''
|-

|-
|[[Cha Lee|Lee, Cha]]
|Post-Heresy ([[M41]])
|[[Lieutenant-Commander]].
|[[White Dwarf 97 (UK)]], pg. 42 — ''Index Astartes: Ultramarines''

|-
|[[Lewing]]
|Post-Heresy ([[M41]])
|[[Space Marine Captain|Captain]], [[10th Company (Ultramarines)|Tenth Company]].
|[[White Dwarf 97 (UK)]], pg. 42 — ''Index Astartes: Ultramarines''

|-
|[[Lobon]]
|Pre-Heresy
|[[Space Marine Captain|Captain]] serving in the [[22nd Chapter (Ultramarines Legion)|22nd Chapter]].
|[[Roboute Guilliman: Lord of Ultramar (Novel)]], Chapter Two

|-
|[[Loraeus]]
|
|
|[[The Librarian's Acolyte (Short Story)]]

|-
|[[Loxias]]
|Pre-Heresy
|[[Techmarine]], [[22nd Chapter (Ultramarines Legion)|22nd Chapter]]. Killed during the [[Battle of Thoas]].
|[[Roboute Guilliman: Lord of Ultramar (Novel)]], Chapter Six

|-
|[[Lucian]]
|Era Indomitus
|[[Terminator]].
|{{Cite this}}

|-
|[[Honorius Luciel|Luciel, Honorius]]
|Pre-Heresy<br />Heresy
|[[Space Marine Captain|Captain]], [[209th Company (Ultramarines Legion)|209th Company]]. Killed by Captain [[Sorot Tchure]] of the [[Word Bearers]] during the opening phase of the [[Battle of Calth]].
|[[Know No Fear (Novel)]], ''Target//Acquisition'', Chapter 1
|-

|-
|[[Janek Lycean|Lycean, Janek]]
|Post-Heresy ([[M41]])
|Fought as a Scout on [[Espandor]] and during the Defense of Ultramar.
|[[Defenders of Ultramar (Graphic Novel)]], Chapter One;<br />[[The Chapter's Due (Novel)]], Chapter Four

|-
|[[Lycos]]
|
| 
|[[Ultramarines - A Warhammer 40,000 Movie]]

|-
|[[Lykon]]
|
|[[Tactical Squad|Tactical]] [[Space Marine Sergeant|Sergeant]], [[4th Company (Ultramarines)|4th Company]].
|[[Courage and Honour (Novel)]], {{Cite This}}

|-
|[[Pasanius Lysane|Lysane, Pasanius]]
|
|[[Space Marine Sergeant|Sergeant]], [[4th Company (Ultramarines)|4th Company]]. Leads a tactical squad known as 'The Firebrands'.
|[[Nightbringer (Novel)]], {{Cite This}};<br />[[The Chapter's Due (Novel)]], Chapter Eight

|-
|[[Macrinus]]
|Post-Heresy ([[M32]])
|Captain. Active during the [[War of the Beast]].
|{{Cite this}}

|-
|[[Malcades]]
|
|[[Redemptor Dreadnought]].
|

|-
|[[Malcian]]
|
|Brother. Member of the [[Lions of Macragge]], the [[Space Marine Command Squad|command squad]] of the [[2nd Company (Ultramarines)|Second Company]].
|[[Codex: Space Marines (5th Edition)]], pgs. 18-19;<br />[[The Chapter's Due (Novel)]], {{Cite This}};<br />[[Fall of Damnos (Novel)]], {{Cite This}}

|-
|[[Mallich]]
|
|[[Veteran Sergeant]], [[Space Marine Company|Third Company]].
|[[Fire Warrior (Novel)]], Chapter 4, pgs. 86-89

|-
|[[Levren Maltis|Maltis, Levren]]
|
|[[Vanguard Librarian]].
|

|-
|[[Maginty]]
|Post-Heresy ([[M41]])
|[[Chaplain]], [[2nd Company (Ultramarines)|Second Company]].
|[[White Dwarf 97 (UK)]], pg. 42 — ''Index Astartes: Ultramarines''

|-
|[[Praxor Manorian|Manorian, Praxor]]
|
|[[Space Marine Sergeant|Sergeant]] of 2nd Tactical Squad, [[2nd Company (Ultramarines)|2nd company]] known as 'The Shield Bearers'.
|[[Codex: Space Marines (5th Edition)]], pgs. 18-19;<br />[[The Chapter's Due (Novel)]], {{Cite This}};<br />[[Fall of Damnos (Novel)]], {{Cite This}}

|-
|[[Marcellus]]
|
|Known as '''Ancient Marcellus'''. [[Deredeo Pattern Dreadnought]], Heavy Support Echelon, 117th Company. Fell during the [[Battle of Calth]].
|[[The Horus Heresy Book Five - Tempest]], pg. 83

|-
|[[Marcus (Ultramarines)|Marcus]]
|
|[[Vanguard Veteran]].
|[[Kill Team: Elites]], pg. 124 - ''Conquerors of the Killzones''

|-
|[[Marius (Dreadnought)|Marius]]
|
|[[Space Marine Dreadnought|Dreadnought]].
|

|-
|[[Markus]]
|Era Indomitus
|[[Assault Squad|Assault Marine]], [[Squad Pomibius]], [[8th Company (Ultramarines)|Eighth Company]]. Killed during a combat drop on [[Meto]].
|[[Of Honour and Iron (Novel)]], Chapter Six
|-

|-
|[[Martinus (Ultramarines)|Martinus]]
|
|[[Space Marine Sergeant|Sergeant]]. Fell to the worship of [[Chaos]]. Killed when [[Blade of Divination|his blade]] turned upon him.
|[[Warhammer 40,000: Dawn of War II - Retribution]] - [[Blade of Divination]], wargear selection screen

|-
|[[Mastus]]
|
|[[Redemptor Dreadnought]].
|[[Codex Supplement: Ultramarines (8th Edition)]], pgs. 60-61 - ''The Primarch's Chosen ''

|-
|[[Maxellus]]
|
|21st [[Chapter Master]].
|

|-
|[[Maxillus]]
|
|Member of the [[Deathwatch]].
|[[The Alien Hunters (Short Story)]] — [[Xenos Hunters (Anthology)]]

|-
|[[Fennias Maxim|Maxim, Fennias]]
|
|[[Master of the Forge]].
|

|-
|[[Maximus (Ultramarines)|Maximus]]
|Post-Heresy ([[M41]])
|[[Tactical Squad|Tactical Marine]], [[Squad Romulus]], [[2nd Company (Ultramarines)|Second Company]].
|[[How to Paint Space Marines]], pg. 34

|-
|[[Maxos]]
|
|[[Battle-Brother]].
|

|-
|[[Melos (Ultramarines)|Melos]]
|Era Indomitus
|[[Inceptor Squad|Inceptor]], [[Squad Theron]].
|[[Of Honour and Iron (Novel)]], Chapter Eight

|-
|[[Aerion Mersaror|Mersaror, Aerion]]
|Heresy
|Chapter First Captain.
|

|-
|[[Meton]]
|Pre-Heresy
|[[Space Marine Scout|Scout]], [[166th Company (Ultramarines Legion)|166th Company]].
|[[Roboute Guilliman: Lord of Ultramar (Novel)]], Chapter One

|-
|[[Midas (Ultramarines)|Midas]]
| 
|[[Space Marine Sergeant|Sergeant]]. Served under [[Space Marine Captain|Captain]] [[Titus (Captain)|Titus]], during the [[Graia (History)|invasion]] of the [[Forge World]] [[Graia]].
|[[Warhammer 40,000: Space Marine]], Chapter 6: Lair of Giants

|-
|[[Ruben Moress|Moress, Ruben]]
|
|[[Psyker]] [[Chaplain]], with the title Father.
|[[Citadel Combat Cards]]: [[Spacewar]]

|-
|[[Julion Morix|Morix, Julion]]
|
|[[Vanguard Veteran]], [[1st Company (Ultramarines)|First Company]].
|[[Warhammer 40,000 7th Edition Rulebook]]{{Cite this}}

|-
|[[Morvaen]]
|
|[[Centurion]] [[Space Marine Sergeant|Sergeant]].
|

|-
|[[Muk Mukyoun|Mukyoun, Muk]]
|Post-Heresy ([[M41]])
|[[Lieutenant-Commander]].
|[[White Dwarf 97 (UK)]], pg. 45 — ''Index Astartes: Ultramarines''

|-
|[[Mullighak]]
|Post-Heresy ([[M41]])
|[[Space Marine Lieutenant|Lieutenant]], [[3rd Company (Ultramarines)|Third Company]].
|[[White Dwarf 97 (UK)]], pg. 42 — ''Index Astartes: Ultramarines''

|-
|[[Mulvarius]] 
|
|[[Chaplain]], [[Space Marine Company|Third Company]].
|[[Fire Warrior (Novel)]], Chapter 4, pgs. 86-89

|-
|[[Lucius Mysander|Mysander, Lucius]]
|Heresy
|[[Space Marine Captain|Captain]].
|{{Cite this}}

|-
|[[Naevius]]
|Pre-Heresy
|[[Tactical Squad|Tactical Legionary]], [[112th Company (Ultramarines Legion)|112th Company]], [[11th Chapter (Ultramarines Legion)|11th Chapter]].
|[[The Horus Heresy Book Five - Tempest]], pg. 88

|-
|[[Illiyan Nastase|Nastase, Illiyan]]
|Post-Heresy ([[M41]])
|[[Chief Librarian]] and [[Astropath]].
|[[White Dwarf 97 (UK)]], pg. 42, ''Index Astartes - Ultramarines''

|-
|[[Nectus]]
|Pre-Heresy
|[[Space Marine Captain|Captain]], [[112th Company (Ultramarines Legion)|112th Company]]. Killed prior to the [[Horus Heresy]].
|[[Know No Fear (Novel)]], ''Target//Acquisition'', Chapter 3

|-
|[[Nemetus]]
|
|[[Space Marine Lieutenant|Lieutenant]].
|[[Indomitus (Novel)]] Chapter 1

|-
|[[Nero (Horus Heresy)|Nero]]
|[[Horus Heresy]]
|Officer.
|[[The Reflection Crack'd (Novella)]], Chapter 2

|-
|[[Nero (Primaris Outrider)|Nero]]
|[[Era Indomitus]]
|[[Primaris Outrider]]
|[[Warhammer Combat Cards]]

|-
|[[Petronius Nero|Nero, Petronius]]
|
|[[Company Champion]], [[4th Company (Ultramarines)|4th Company]]. Member of [[The Swords of Calth]].
|[[The Chapter's Due (Novel)]], Chapter Eight

|-
|[[Nestor]]
|
|[[Tactical Squad|Tactical]] [[Space Marine Sergeant|Sergeant]], [[4th Company (Ultramarines)|4th Company]].
|[[Courage and Honour (Novel)]], {{Cite This}}

|-
|[[Tiy Newman|Newman, Tiy]]
|Post-Heresy ([[M41]])
|Former [[Space Marine Captain|Captain]], [[4th Company (Ultramarines)|Fourth Company]]. Died fighting [[Ork]]s on [[Womo]] in 982.[[M41]].
|[[White Dwarf 97 (UK)]], pg. 44 — ''Index Astartes: Ultramarines''

|-
|[[Andron Ney|Ney, Andron]]
|
|[[Primaris Marine|Primaris]] [[Chapter Ancient]].
|[[Dark Imperium (Novel)]] {{Cite this}}

|-
|[[Nicandrus]]
|Pre-Heresy
|[[Techmarine]], [[223rd Company (Ultramarines Legion)|223rd Company]], [[22nd Chapter (Ultramarines Legion)|22nd Chapter]].
|[[Roboute Guilliman: Lord of Ultramar (Novel)]], Chapter Four

|-
|[[Nicanor]]
|Era Indomitus
|[[Intercessor Squad|Intercessor]].
|[[Of Honour and Iron (Novel)]], Chapter Ten

|-
|[[Tauro Nicodemus|Nicodemus, Tauro]]
|Heresy
|[[Chapter Champion|Legion Champion]], [[Tetrarch of Ultramar|Tetrarch]] and [[Ultramarines Honour Guard|Honour Guard]] to the Primarch.
|[[The Iron Within (Short Story)]]

|-
|[[Niereck]]
|Post-Heresy ([[M41]])
|[[Chaplain]], [[6th Company (Ultramarines)|Sixth Company]].
|[[White Dwarf 97 (UK)]], pg. 42 — ''Index Astartes: Ultramarines''

|-
|[[Numetor]]
|Heresy
|Killed in the [[Underworld War]].
|[[Censure (Short Story)]] — [[Legacies of Betrayal (Anthology)]]

|-
|[[Jorus Numitor|Numitor, Jorus]]
|Post-Heresy<br />Era Indomitus
|[[Space Marine Captain|Captain]], [[8th Company (Ultramarines)|8th Company]].
|[[Blades of Damocles (Novel)]], Chapter Fifteen,<br />[[Codex: Space Marines (8th Edition)]], pg. 13

|-
|[[Oberdeii]]
|Heresy<br />Post-Heresy
|[[Space Marine Scout|Scout]]. Later [[Warden of the Pharos]]. Later [[List of Founders|Founder]] and first [[Chapter Master]] of the [[Scythes of the Emperor]].
|[[The Aegidan Oath (Short Story)]] - [[Scythes of the Emperor (Anthology)]]

|-
|[[Ocellus]]
|
|[[Chaplain]].  Died in the [[Battle for Macragge]].
|

|-
|[[Octavian]]
|
|[[Tactical Squad|Tactical]] [[Space Marine Sergeant|Sergeant]], ''The Swords of Judgement'', [[2nd Company (Ultramarines)|Second Company]].  Octavian's squad has an impressive total of fifteen marksmen's honours amongst them.
|[[Codex: Space Marines (5th Edition)]], pgs. 18-19

|-
|[[Octavius (Captain)|Octavius]]
|
|Captain
|

|-
|[[Odaenathus]]
|Post-Heresy ([[M32]])
|[[Chapter Master]] in the [[War of the Beast]].
|{{Cite this}}

|-
|[[Arceas Odinathus|Odinathus, Arceas]]
|Heresy
|[[Chapter Master]] of the 10th Chapter.
|

|-
|[[Ohair]]
|Post-Heresy ([[M41]])
|[[Chaplain]], [[3rd Company (Ultramarines)|Third Company]].
|[[White Dwarf 97 (UK)]], pg. 42 — ''Index Astartes: Ultramarines''

|-
|[[Olantor]]
|
|Part of a garrison upon a [[Ramilies]] class star fort.
|[[Iron Warrior (Novella)]], {{Cite This}}<br />[[The Chapter's Due (Novel)]], Chapter Three

|-
|[[Ollonius]]
|Post-Heresy ([[M36]])
|[[Chapter Master]].
|{{Cite this}}

|-
|[[Olmenus]]
|Heresy
|Battle-Brother.
|

|-
|[[Omneus]]
|
|Former Captain.
|

|-
|[[Omos]]
|Post-Heresy ([[M41]])
|[[Chaplain]], [[10th Company (Ultramarines)|Tenth Company]].
|[[White Dwarf 97 (UK)]], pg. 42 — ''Index Astartes: Ultramarines''

|-
|[[Oquan]]
|Post-Heresy ([[M41]])
|[[Space Marine Captain|Captain]], [[6th Company (Ultramarines)|Sixth Company]].
|[[White Dwarf 97 (UK)]], pg. 42 — ''Index Astartes: Ultramarines''

|-
|[[Orad]]
|
|[[Chaplain]].
|

|-
|[[Orar]]
|Heresy
|Captain.
|

|-
|[[Orestes (Ultramarines)|Orestes]]
|
|Sergeant and close friend to [[Tigurius]].
|[[Warlords of the Dark Millennium: Tigurius (Background Book)]]{{Cite this}}

|-
|[[Maximus Orsumness|Orsumness, Maximus]]
|
|Sergeant.
|[https://www.warhammer-community.com/2019/08/08/space-marines-preview-scions-of-guillimangw-homepage-post-1/ Space Marines Preview: Scions of Guilliman] (Last accessed on 8 August 2019)

|-
|[[Ortegius]]
|
|[[Space Marine Veteran Sergeant|Veteran Sergeant]].
|

|-
|[[Varro Ortyras|Ortyras, Varro]]
|
|[[Chapter Champion]].
|[[Codex Supplement: Ultramarines (8th Edition)]], pg. 41

|-
|[[Otho (Ultramarines)|Otho]]
|
|[[Stormraven Gunship|Stormraven]] pilot, [[3rd Company (Ultramarines)|Third Company]].
|[[Deathwatch: One Bullet (Short Story)|One Bullet (Short Story)]] - [[Deathwatch: Ignition (Anthology)]]

|-
|[[Patrean]]
|
|[[Space Marine Sergeant|Sergeant]], [[4th Company (Ultramarines)|Fourth company]].
|[[Courage and Honour (Novel)]], {{Cite This}}

|-
|[[Patrobus]]
|
|[[Space Marine Sergeant|Sergeant]], [[5th Company (Ultramarines)|Fifth company]].
|[[The Chapter's Due (Novel)]], {{Cite This}}

|-
|[[Agai Paulus|Paulus, Agai]]
|Post-Heresy ([[M41]])
|[[Master of Sanctity]].
|

|-
|[[Krato Peleos|Peleos, Krato]]
|Pre-Heresy
|7th Chapter Command Company.
|[[The Horus Heresy Book Five - Tempest]] pg. 87

|-
|[[Peratos]]
|
|Member of the [[Deathwatch]].
|[[Deathwatch: The Emperor's Chosen]], pg. 61

|-
|[[Perseus]]
|
|Veteran Sergeant.
|[https://web.archive.org/web/20080411103823/http://uk.games-workshop.com/spacemarines/converted-cmd-sqd/3/ Converted Command Squads], pg. 3

|-
|[[Pexilius]]
|Heresy
|Captain.
|[[Honour to the Dead (Short Story)]]

|-
|[[Phaetus]]
|
|[[Assault Squad|Assault Marine]], [[4th Company (Ultramarines)|Fourth Company]]. 
|[[Courage and Honour (Novel)]], {{Cite This}}

|-
|[[Machon Phalaris|Phalaris, Machon]]
|Pre-Heresy
|[[Chapter Master]], [[22nd Chapter (Ultramarines Legion)|22nd "Nemesis" Chapter]]. Killed by the [[ork]]s of the [[Thoas|Thoas Empire]] in the [[Aletho System]].
|[[Roboute Guilliman: Lord of Ultramar (Novel)]], Chapter One

|-
|[[Phelian]]
|
|[[Space Marine Captain|Captain]], [[5th Company (Ultramarines)|Fifth Company]].
|{{Cite this}}

|-
|[[Phocion]]
|Pre-Heresy
|[[Scout Sergeant]], [[166th Company (Ultramarines Legion)|166th Company]].
|[[Roboute Guilliman: Lord of Ultramar (Novel)]], Chapter One

|-
|[[Phrastorex]]
|Heresy
|[[Space Marine Captain|Captain]], [[112th Company (Ultramarines Legion)|112th Company]].
|[[Know No Fear (Novel)]], ''Target//Acquisition'', Chapter 3

|-
|[[Pio]]
|Post-Heresy ([[M41]])
|[[Chaplain]], [[8th Company (Ultramarines)|Eighth Company]].
|[[White Dwarf 97 (UK)]], pg. 42 — ''Index Astartes: Ultramarines''

|-
|[[Polixis]]
|
|[[Primaris Apothecary]].
|

|-
|[[Gaius Pollandus|Pollandus, Gaius]]
|
|
|[[Codex: Space Marines (8th Edition, 2nd Codex)]], pgs. 14-15

|-
|[[Pollonius]]
|
|[[Librarian]].
|

|-
|[[Pomibius]]
|Era Indomitus
|[[Assault Squad|Assault]] [[Space Marine Veteran Sergeant|Veteran Sergeant]], [[Squad Pomibius]], [[8th Company (Ultramarines)|Eighth Company]]. Killed by the [[ork]]s on [[Meto]].
|[[Of Honour and Iron (Novel)]], Chapter Four

|-
|[[Gaius Prabian|Prabian, Gaius]]
|
|[[Company Champion]], [[2nd Company (Ultramarines)|Second Company]]. Member of the '[[Lions of Macragge]]', the [[Space Marine Command Squad|command squad]] led by [[Cato Sicarius]].
|[[Codex: Space Marines (5th Edition)]], pgs. 18-19;<br />[[The Chapter's Due (Novel)]], {{Cite This}};<br />[[Fall of Damnos (Novel)]], {{Cite This}}

|-
|[[Issoros Praernon|Praernon, Issoros]]
|
|Member of the [[Victrix Guard]].
|[[Codex Supplement: Ultramarines (8th Edition)]], pg. 41

|-
|[[Praetes]]
|
|[[Company Champion]], [[2nd Company (Ultramarines)|Second Company]].
|[[White Dwarf 321 (UK)]], pgs. 76–78

|-
|[[Prascus]]
|
|Member of the [[Deathwatch]].
|[[Deathwatch: Rites of Battle]], pg. 237

|-
|[[Praxamedes]]
|Era Indomitus
|[[Space Marine Lieutenant|Lieutenant]]. Fought as part of [[Space Marine Captain|Captain]] [[Aeschelus]]' [[Space Marine Company|Company]] attached to [[Indomitus Crusade Fleet Quintus]].
|[[Indomitus (Novel)]], Part One, Chapter One

|-
|[[Praxius]]
|
|[[Vanguard Veteran]], [[1st Company (Ultramarines)|First Company]].
|[[Warhammer 40,000 7th Edition Rulebook]]{{Cite this}}

|-
|[[Titus Prayto|Prayto, Titus]]
|Heresy
|[[Librarian]].
|{{Cite this}}

|-
|[[Notan Promethor|Promethor, Notan]]
|
|[[Tactical Marine]].
|

|-
|[[Promus]]
|
|[[Chief Librarian]] (Heresy era)
|{{Cite this}}

|-
|[[Proteus]]
|
|
|[[Ultramarines - A Warhammer 40,000 Movie]]

|-
|[[Ptolemy]]
|
|First and greatest Librarian of the Ultramarines, founded the [[Library of Ptolemy]] (Heresy-era).
|[[The Chapter's Due (Novel)]], Chapter Six

|-
|[[Puissant]]
|Post-Heresy ([[M41]])
|[[Chaplain]], [[7th Company (Ultramarines)|Seventh Company]].
|[[White Dwarf 97 (UK)]], pg. 42 — ''Index Astartes: Ultramarines''

|-
|[[Pule]]
|Post-Heresy ([[M41]])
|[[Space Marine Lieutenant|Lieutenant]], [[4th Company (Ultramarines)|Fourth Company]].
|[[White Dwarf 97 (UK)]], pg. 42 — ''Index Astartes: Ultramarines''

|-
|[[Pythol]]
|
|[[Apothecary]].
|[[Ultramarines - A Warhammer 40,000 Movie]]

|-
|[[Rufus Quintus|Quintus, Rufus]]
|
|[[Space Marine Sergeant|Sergeant]], [[5th Company (Ultramarines)|5th company]]. Later promoted to Sergeant [[1st Company (Ultramarines)|1st company]], wounded, reassigned to non-combat role as [[Praefectus]]orae of [[Tarentus]].
|[[The Chapter's Due (Novel)]], Chapter One

|-
|[[Regalthos]]
|
|[[Company Champion]], [[3rd Company (Ultramarines)|Third Company]].
|[[White Dwarf 99 (2015)]] — ''Scourge of the Xenos: Company Specialists''

|-
|[[Reifenrath]]
|
|Commander.
|

|-
|[[Reille]]
|Post-Heresy ([[M41]])
|[[Chaplain]], [[9th Company (Ultramarines)|Ninth Company]].
|[[White Dwarf 97 (UK)]], pg. 42 — ''Index Astartes: Ultramarines''

|-
|[[Remulus]]
|
|
|[[Ultramarines - A Warhammer 40,000 Movie]]

|-
|[[Valatan Remus|Remus, Valatan]]
|
|[[Tactical Marine]].
|

|-
|[[Riebeck]]
|Post-Heresy ([[M41]])
|[[Space Marine Captain|Captain]], [[3rd Company (Ultramarines)|3rd Company]].
|[[White Dwarf 97 (UK)]], pg. 42 — ''Index Astartes - Ultramarines''

|-
|[[Icator Ristus|Ristus, Icator]]
|
|[[Chapter Champion]].
|[[Codex Supplement: Ultramarines (8th Edition)]], pg. 41

|-
|[[Rizon]]
|Pre-Heresy
|[[Space Marine Scout|Scout]], [[223rd Company (Ultramarines Legion)|223rd Company]].
|[[Roboute Guilliman: Lord of Ultramar (Novel)]], Chapter Four

|-
|[[Roscius]]
|Heresy
|Assault Captain.
|

|-
|[[Tylos Rubio|Rubio, Tylos]]
|Heresy
|Former [[Codicier]], recruited by [[Nathaniel Garro]] on the orders of [[Malcador the Sigillite]].
|[[Garro: Oath of Moment (Audio Book)]]

|-
|[[Sabbatina]]
|
|Part of a garrison upon a [[Ramilies]] class star fort.
|[[Iron Warrior (Novella)]], {{Cite This}};<br />[[The Chapter's Due (Novel)]], Chapter Three

|-
|[[Samson]]
|Era Indomitus
|[[Primaris Lieutenant]].
|

|-
|[[Sanctimus]]
|
|Seconded to the Deathwatch. Died repelling [[Black Legion]] boarders from the Strike Cruiser ''[[Incontrovertible Truth]]''.
|[[Deathwatch: Bad Blood (Short Story)]]

|-
|[[Sarervan]]
|Pre-Heresy
|15th Chapter Command Cadre Invictarius.
|[[The Horus Heresy Book Five - Tempest]], pg. 90

|-
|[[Scelus (Ultramarines)|Scelus]]
|
|[[Tyrannic War Veteran]]. Member of the [[Deathwatch]].
|

|-
|[[Scevola]]
|
|Battle-brother, [[Squad Senekus]], [[3rd Company (Ultramarines)|Third Company]].
|[[Deathwatch: One Bullet (Short Story)|One Bullet (Short Story)]] - [[Deathwatch: Ignition (Anthology)]]

|-
|[[Segas]]
|Post-Heresy ([[M32]])
|[[Chaplain]], [[2nd Company (Ultramarines)|Second Company]]. Travelled to [[Sotha]] during the [[Third Founding]] to convince [[Oberdeii]] to become the first [[Chapter Master]] of a new [[Chapter]], which became known as the [[Scythes of the Emperor]], joining it in the process.
|[[The Aegidan Oath (Short Story)]] - [[Scythes of the Emperor (Anthology)]]

|-
|[[Kiuz Selaton|Selaton, Kiuz]]
|Pre-Heresy<br />Heresy<br />Post-Heresy
|[[Space Marine Sergeant|Sergeant]].
|

|-
|[[Selatonus]]
|
|[[Venerable Dreadnought]].
|{{Cite this}}

|-
|[[Selenus]]
|
|[[Apothecary]], 4th company command squad ''The Swords of Calth''.
|[[Nightbringer (Novel)]], {{Cite This}};<br />[[The Chapter's Due (Novel)]], Chapter Eight

|-
|[[Seneca]]
|Era Indomitus
|[[Intercessor Squad|Intercessor]] [[Space Marine Sergeant|Sergeant]], [[8th Company (Ultramarines)|Eighth Company]].
|[[Of Honour and Iron (Novel)]], Chapter Thirty-Five

|-
|[[Senekus]]
|
|[[Space Marine Sergeant|Sergeant]], [[Squad Senekus]], [[3rd Company (Ultramarines)|Third Company]].
|[[Deathwatch: One Bullet (Short Story)|One Bullet (Short Story)]] - [[Deathwatch: Ignition (Anthology)]]

|-
|[[Jaenos Sevastus|Sevastus, Jaenos]]
|
|[[Space Marine Sergeant|Sergeant]].
|

|-
|[[Severian (Ultramarines)|Severian]]
|
|[[Battle-brother]], [[3rd Company (Ultramarines)|Third Company]].
|[[Codex: Space Marines (6th Edition)]], pg. 22

|-
|[[Severus]]
|
|Captain of the Second Company during its mission to [[Mithron]].
|[[Ultramarines - A Warhammer 40,000 Movie]]

|-
|[[Severus (Dreadnought)|Severus]]
|
|[[Dreadnought]].
|{{Cite this}}

|-
|[[Sewell]]
|
|Force commander.
|

|-
|[[Cato Sicarius|Sicarius, Cato]]
|Post-Heresy ([[M41]])<br>Era Indomtius
|Commander of the [[Victrix Guard]]. Formerly Captain of the [[2nd Company (Ultramarines)|Second Company]].
|[[Codex: Space Marines (5th Edition)]], pg. 17

|-
|[[Signatus (Ultramarines)|Signatus]]
|Post-Heresy ([[M41]])
|[[2nd Company (Ultramarines)|Second Company]].
|[[How to Paint Space Marines]], pg. 34

|-
|[[Simmias]]
|
|[[Techmarine]]. Member of the [[Deathwatch]].
|{{Cite this}}

|-
|[[Hulm Singa|Singa, Hulm]]
|Post-Heresy ([[M41]])
|[[Master of the Apothecarion]].
|[[White Dwarf 97 (UK)]], pg. 42 — ''Index Astartes: Ultramarines''

|-
|[[Sinon]]
|
|Captain of the [[9th Company (Ultramarines)|Ninth Company]]. 
|[[Codex: Space Marines (5th Edition)]], pg. 17

|-
|[[Sirras]]
|Pre-Heresy
|[[Space Marine Captain|Captain]], [[223rd Company (Ultramarines Legion)|223rd Company]].
|[[Roboute Guilliman: Lord of Ultramar (Novel)]], Chapter One

|-
|[[Sirrus]]
|
|Force Commander.
|

|-
|[[Sisenna]]
|
|[[Chaplain]].
|[[Nexus (Novella)]], Chapter 1

|-
|[[Mars Skyrus|Skyrus, Mars]]
|
|[[Primaris]] [[Ancient]].
|

|-
|[[Ignatio Solarion|Solarion, Ignatio]]
|
|Member of the [[Deathwatch]].
|[[Headhunted (Short Story)]]

|-
|[[Solinus]]
|
|Sergeant of 3rd Tactical Squad, 2nd company known as 'The Indomitable'. Won honours at Fort Telrendar.
|[[Codex: Space Marines (5th Edition)]], pgs. 18-19

|-
|[[Solon (Ultramarines)|Solon]]
|Pre-Heresy
|Standard bearer of the 3rd Battalion, 12th Chapter.
|[[The Horus Heresy Book Five - Tempest]], pg. 93

|-
|[[Speritas]]
|
|Dreadnought attached to the 4th company. Depicted armed with assault cannon and missile launcher.
|[[Courage and Honour (Novel)]], {{Cite This}}

|-
|[[Strabo]]
|
|Assault squad Sergeant of ''The Heroes of Selonopolis''. Strabo fights with a power sword and wears a Mk VI helm.
|[[Codex: Space Marines (5th Edition)]], pgs. 18-19

|-
|[[Straton (Ultramarines)|Straton]]
|Post-Heresy ([[M32]])
|Member of the [[Deathwatch]].
|{{Cite this}}

|-
|[[Teus Sullus|Sullus, Teus]]
|
|[[Space Marine Captain|Captain]], [[39th Company (Ultramarines Legion)|39th Company]].
|{{Cite this}}

|-
|[[Lyros Sydance|Sydance, Lyros]]
|Heresy
|[[Space Marine Captain|Captain]], [[4th Company (Ultramarines Legion)|4th Company]].
|[[Know No Fear (Novel)]], ''Target//Engagement'', Chapter 7

|-
|[[Taerone]]
|Heresy
|[[Space Marine Captain|Captain]], [[135th Company (Ultramarines Legion)|135th Company]].
|[[Know No Fear (Novel)]], ''Target//Acquisition'', Chapter 3

|-
|[[Tow Takka-chow|Takka-chow, Tow]]
|Post-Heresy ([[M41]])
|Also known as "Tow Chakka Chow". [[Master of Sanctity]].
|[[White Dwarf 97 (UK)]], pgs. 42, 47, 49, ''Index Astartes - Ultramarines''

|-
|[[Cassian Talasadian|Talasdian, Cassian]]
|Era Indomitus
|Primaris Lieutenant.
|

|-
|[[Tallum]]
|
|[[Veteran Sergeant]], [[2nd Company (Ultramarines)|2nd Company]]. Commander of a [[Tactical Squad]] known as [[The Lineholders]].
|[[Codex: Space Marines (8th Edition)]], pg. 26

|-
|[[Talon (Ultramarines)|Talon]]
|
|[[Contemptor Dreadnought]].
|

|-
|[[Tantus]]
|Era Indomitus
|[[Primaris Librarian]].
|

|-
|[[Proximo Tarchon|Tarchon, Proximo]]
|Heresy
|Centurion.
|{{Cite this}}

|-
|[[Tarchus]]
|Pre-Heresy
|[[Scout Sergeant]], [[223rd Company (Ultramarines Legion)|223rd Company]].
|[[Roboute Guilliman: Lord of Ultramar (Novel)]], Chapter Four

|-
|[[Morvio Tarilis|Tarilis, Morvio]]
|
|Member of the [[Victrix Guard]].
|[[Codex Supplement: Ultramarines (8th Edition)]], pg. 41

|-
|[[Tatianus]]
|
|[[Sternguard Veteran|Sternguard]] [[Space Marine Sergeant|Sergeant]].
|[[Deathwatch: One Bullet (Short Story)|One Bullet (Short Story)]] - [[Deathwatch: Ignition (Anthology)]]

|-
|[[Tavian]]
|
|[[Chaplain]].
|[[Codex: Space Marines (9th Edition)]], pgs. 74-75

|-
|[[Telemechrus]]
|Heresy
|[[Space Marine Dreadnought|Dreadnought]].
|{{Cite this}}

|-
|[[Tellemachus]]
|
|[[Sternguard Veteran]].
|[[Kill Team: Elites]], pg. 124 - ''Conquerors of the Killzones''

|-
|[[Torias Telion|Tellion, Torias]]
|
|[[Scout Sergeant]] known to be an unparalleled marksman.
|[[Codex: Space Marines (5th Edition)]], pg. 88

|-
|[[Agorus Telorian|Telorian, Agorus]]
|
|[[Epistolary]].
|[[Codex: Space Marines (9th Edition)]], pg. 34

|-
|[[Tercon (Ultramarines)|Tercon]]
|Post-Heresy ([[M41]])
|[[Tactical Squad|Tactical Marine]], [[Squad Romulus]], [[2nd Company (Ultramarines)|Second Company]].
|[[How to Paint Space Marines]], pg. 34

|-
|[[Teutona]]
|Pre-Heresy
|[[Space Marine Captain|Captain]], [[15th Chapter (Ultramarines Legion)|15th Chapter]].
|[[The Horus Heresy Book Five - Tempest]], pg. 90

|-
|[[Anaton Thassarius|Thassarius, Anaton]]
|
|[[Space Marine Captain|Captain]].
|

|-
|[[Julianus Theldor|Theldor, Julianus]]
|
|Battle-Brother
|[[Codex: Space Marines (9th Edition)]], pg. 59

|-
|[[Theon]]
|Pre-Heresy
|[[Apothecary]], [[3rd Chapter (Ultramarines Legion)|3rd Chapter]].
|[[The Horus Heresy Book Five - Tempest]], pg. 94

|-
|[[Theron (Ultramarines 4th Company)|Theron]]
|
|[[Tactical Squad|Tactical]] [[Space Marine Sergeant|Sergeant]], [[4th Company (Ultramarines)|Fourth Company]]. 
|[[Courage and Honour (Novel)]], {{Cite This}}

|-
|[[Theron (Ultramarines)|Theron]]
|Era Indomitus
|[[Space Marine Sergeant|Sergeant]], [[Squad Theron]], [[8th Company (Ultramarines)|Eighth Company]].
|[[Of Honour and Iron (Novel)]], Chapter Eight

|-
|[[Didacus Theron|Theron, Didacus]]
|Heresy
|[[Centurion (Rank)|Centurion]].
|{{Cite this}}

|-
|[[Aeonid Thiel|Thiel, Aeonid]]
|Pre-Heresy<br />Heresy
|[[Space Marine Sergeant|Sergeant]], [[135th Company (Ultramarines Legion)|135th Company]], [[13th Chapter (Ultramarines Legion)|13th Chapter]].
|[[Know No Fear (Novel)]], ''Target//Acquisition'', Chapter Four

|-
|[[Tiberius (Deathwatch)|Tiberius]]
|
|Member of the [[Deathwatch]].
|

|-
|[[Tiberius (Dreadnought)|Tiberius]]
|
|[[Redemptor Dreadnought]].
|[[Conquest 25]] — ''Missing Briefing: Fury Unleashed''

|-
|[[Lazlo Tiberius|Tiberius, Lazlo]]
|Post-Heresy ([[M41]])
|[[Lord Admiral]], commander of the ''[[Vae Victus]]'' and [[Master of the Fleet]].
|[[Nightbringer (Novel)]], {{Cite This}}<br />[[The Chapter's Due (Novel)]], Chapter Six

|-
|[[Tiberon]]
|Era Indomitus
|Primaris [[Techmarine]].
|
|-

|-
|[[Tibron]]
|Pre-Heresy
|[[Space Marine Sergeant|Sergeant]]. Killed in the [[Battle of Thoas]].
|[[Roboute Guilliman: Lord of Ultramar (Novel)]], Chapter Three

|-
|[[Tidaeus]]
|
|Member of the [[Deathwatch]].
|{{Cite this}}

|-
|[[Domelechus Tigon|Tigon, Domelechus]]
|
|[[Chapter Champion]].
|[[Codex Supplement: Ultramarines (8th Edition)]], pg. 41 - ''Honour Guard: Chapter Champion''

|-
|[[Varro Tigurius|Tigurius, Varro]]
|Post-Heresy ([[M41]])<br />Era Indomitus
|Current [[Chief Librarian]]. Believed to be the strongest [[psyker]] in the Imperium.
|[[Codex: Space Marines (5th Edition)]], pg. 86

|-
|[[Tirian]]
|
|[[Devastator Squad|Devastator]] [[Space Marine Sergeant|Sergeant]], "Guilliman's Hammer," [[2nd Company (Ultramarines)|2nd Company]].
|[[Codex: Space Marines (5th Edition)]], pgs. 18-19, 40<br />[[The Chapter's Due (Novel)]], {{Cite This}}

|-
|[[Titus (Captain)|Titus]]
|
|[[Space Marine Captain|Captain]].
|[[Warhammer 40,000: Space Marine]]

|-
|[[Emanad Titus|Titus, Emanad]]
|
|[[Tactical Marine]].
|

|-
|[[Tollbek]]
|
|Member of the [[Deathwatch]]
|[[Codex Supplement: Deathwatch (9th Edition)]], pgs. 14-15

|-
|[[Sevano Tomasin|Tomasin, Sevano]]
|
|[[Techmarine]], [[4th Company (Ultramarines)|Fourth Company]]. Killed by [[Chaos]] forces on the planet [[Thracia]].
|[[Index Astartes I]], pg. 8 - ''Techmarines''

|-
|[[Torius]]
|
|[[Company Champion]].
|

|-
|[[Trajan (Captain)|Trajan]]
|
|[[Space Marine Captain|Captain]].
|

|-
|[[Elianu Trajan|Trajan, Elianu]]
|
|[[Chaplain]], [[2nd Company (Ultramarines)|Second Company]]
|[[Codex: Space Marines (5th Edition)]], pgs. 18-19<br />[[Fall of Damnos (Novel)]], {{Cite This}}

|-
|[[Trajus]]
|
|[[Space Marine Sergeant|Sergeant]].
|

|-
|[[Troilus]]
|
|Force Commander.
|{{Cite this}}

|-
|[[Tynon]]
|Heresy
|[[Space Marine Sergeant|Sergeant]].
|

|-
|[[Iax Typhonian|Typhonian, Iax]]
|
|Sergeant, First Company; served under Captain Agemman in the Second Company, raised to the First by Agemman's command.
|[[Warhammer 40,000 7th Edition Rulebook]]{{Cite this}}

|-
|[[Tyranus]]
|Era Indomitus
|[[Primaris Lieutenant]].
|

|-
|[[Tyrennius]]
|Heresy
|[[Space Marine Dreadnought|Dreadnought]].
|[[The Horus Heresy Book Five - Tempest]], pg. 155

|-
|[[Galetus Tyvus|Tyvus, Galetus]]
|
|[[Codicier]].
|

|-
|[[Ulleus]]
|
|[[Vanguard Lieutenant]].
|

|-
|[[Ultracius]]
|
|[[Space Marine Dreadnought|Dreadnought]], [[2nd Company (Ultramarines)|Second Company]]. Entombed following the [[Pyra Crusades]].
|[[Codex: Space Marines (5th Edition)]], pgs. 18-19

|-
|[[Urath (Ultramarines)|Urath]]
|Heresy
|[[Space Marine Captain|Captain]], [[39th Company (Ultramarines Legion)|39th Company]].
|[[Rules of Engagement (Short Story)]]

|-
|[[Uticos]]
|Post-Heresy ([[M41]])
|[[Chaplain]].
|[[Blades of Damocles (Novel)]], Chapter Two

|-
|[[Valius (Dreadnought)|Valius]]
|
|[[Space Marine Dreadnought|Dreadnought]].
|[[Codex: Space Marines (8th Edition, 2nd Codex)]], pgs. 106 - ''Strike Force Acheran''

|-
|[[Valius (Ultramarines)|Valius]]
|Post-Heresy ([[M41]])
|[[2nd Company (Ultramarines)|Second Company]].
|[[How to Paint Space Marines]], pgs. 34 & 38

|-
|[[Vallern]]
|
|[[Tactical Squad|Tactical]] [[Space Marine Sergeant|Sergeant]], [[2nd Company (Ultramarines)|2nd Company]]. Commander of [[The Victors]].
|[[Codex: Space Marines (8th Edition)]], pg. 26

|-
|[[Vandar]]
|
|[[Tactical Squad|Tactical]] [[Space Marine Sergeant|Sergeant]], [[2nd Company (Ultramarines)|2nd Company]]. Commander of [[The Victors]]. Youngest recipient of the [[Iron Halo]].
|[[Codex: Space Marines (5th Edition)]], pgs. 18-19

|-
|[[Vandius]]
|
|[[Veteran Sergeant]], [[2nd Company (Ultramarines)|Second Company]]. Company Standard Bearer also bears this name.
|[[Codex: Space Marines (5th Edition)]], pgs. 18-19

|-
|[[Vandius]]
|
|Third Terminator Squad, First Company.
|[[Nightbringer (Novel)]], {{Cite This}}

|-
|[[Vaniel]]
|Post-Heresy ([[M32]])
|[[Chief Librarian]] in the [[War of the Beast]].
|{{Cite this}}

|-
|[[Osodan Vanial|Vanial, Osodan]]
|
|[[Tactical Marine]].
|

|-
|[[Varcus]]
|Era Indomitus
|[[Primaris Lieutenant]].
|
|-

|-
|[[Vared]]
|Heresy
|[[Chapter Master]], [[11th Chapter (Ultramarines Legion)|11th Chapter]].
|[[Roboute Guilliman: Lord of Ultramar (Novel)]], Chapter One

|-
|[[Varinius]]
|Pre-Heresy
|[[Breacher Siege Space Marine|Breacher Legionary]], [[97th Company (Ultramarines Legion)|97th Company]], [[9th Chapter (Ultramarines Legion)|9th Chapter]].
|[[The Horus Heresy Book Five - Tempest]], pg. 89

|-
|[[Varnus]]
|
|Led an Ultramarines escort that accompanied the [[Cadian 412th]] [[Imperial Guard Regiment|Regiment]] to retrieve the [[Imperator Titan]] ''[[Dominatus]]''.
|[[Warhammer 40,000: Dawn of War - Winter Assault]]

|-
|[[Varus (Dreadnought)]]
|
|[[Space Marine Dreadnought|Dreadnought]].
|

|-
|[[Varus (Lexicanum)]]
|
|[[Lexicanum]].
|[https://www.warhammer-community.com/2020/04/18/know-no-fomo-order-2-heroes-for-just-2-weeks/ Warhammer Community: Warhammer Preview 3: Know No FOMO – Order 2 Heroes for Just 2 Weeks (Posted on 18/04/2020)] (Last accessed on 18 April 2020)

|-
|[[Aettius Vasta|Vasta, Aettius]]
|Pre-Heresy<br />Heresy
|[[Praetor (Rank)|Consul-Praetor]].
|[[White Dwarf 342]], pg. 47

|-
|[[Vectas]]
|Post-Heresy ([[M41]])
|[[Assault Squad|Assault Marine]], [[Squad Numitor]], [[8th Company (Ultramarines)|Eighth Company]]. Killed during the [[Damocles Crusade]].
|[[Blades of Damocles (Novel)]], Chapter Two

|-
|[[Veletan]]
|Post-Heresy ([[M41]])
|[[Assault Squad|Assault Marine]], [[Squad Sicarius]], [[8th Company (Ultramarines)|Eighth Company]].
|[[Blades of Damocles (Novel)]], Chapter Two

|-
|[[Venasus]]
|
|[[Space Marine Sergeant|Sergeant]], [[4th Company (Ultramarines)|Fourth company]].
|[[Courage and Honour (Novel)]], {{Cite This}}

|-
|[[Venatio]]
|
|[[Apothecary]], [[2nd Company (Ultramarines)|2nd company]]. Part of [[Cato Sicarius|Sicarius's]] [[Space Marine Command Squad|command squad]], "The Lions of Macragge."
|[[Codex: Space Marines (5th Edition)]], pgs. 18-19<br />[[Fall of Damnos (Novel)]], {{Cite This}}

|-
|[[Remus Ventanus|Ventanus, Remus]]
|Heresy
|[[Space Marine Captain|Captain]], [[4th Company (Ultramarines Legion)|4th Company]].
|[[Rules of Engagement (Short Story)]]<br />[[The Chapter's Due (Novel)]], Chapters One and Nineteen<br />[[Know No Fear (Novel)]], ''Target//Acquisition'', Chapter Three

|-
|[[Lucian Ventris|Ventris, Lucian]]
|
|Veteran Sergeant.
|

|-
|[[Uriel Ventris|Ventris, Uriel]]
|Post-Heresy<br />Era Indomitus
|[[Space Marine Captain|Captain]], [[4th Company (Ultramarines)|Fourth Company]]. Sent to fulfill a [[Death Oath]] for failing to follow Codex Astartes rules.
|[[Chains of Command (Short Story)]]<br />[[Nightbringer (Novel)]], Chapter Two<br />[[Warriors of Ultramar (Novel)]], Chapter One<br />
[[Dead Sky, Black Sun (Novel)]], Chapter One<br />[[The Killing Ground (Novel)]], Chapter One<br />[[Courage and Honour (Novel)]], {{Cite This}}<br />[[The Chapter's Due (Novel)]], Chapter Two

|-
|[[Verenor]]
|
|
|[[Ultramarines - A Warhammer 40,000 Movie]]

|-
|[[Verenus]]
|
|[[Sternguard Veteran|Sternguard]] [[Space Marine Sergeant|Sergeant]].  Captain Agemman's right hand.
|[[Warhammer 40,000 7th Edition Rulebook]]{{Cite this}}

|-
|[[Vexos]]
|
|[[Techmarine]].
|

|-
|[[Vibius (Ultramarines)|Vibius]]
|
|Battle-brother, [[Squad Senekus]], [[3rd Company (Ultramarines)|Third Company]].
|[[Deathwatch: One Bullet (Short Story)|One Bullet (Short Story)]] - [[Deathwatch: Ignition (Anthology)]]

|-
|[[Vicconius (Ultramarines)|Vicconius]]
|
|[[Codicier]].
|[[White Dwarf 72 (2015)]] - ''Psychic Warfare''

|-
|[[Vincino]]
|Post-Heresy ([[M41]])
|[[Space Marine Lieutenant|Lieutenant]], [[10th Company (Ultramarines)|Tenth Company]].
|[[White Dwarf 97 (UK)]], pg. 42 — ''Index Astartes: Ultramarines''

|-
|[[Vintanus]]
|
|[[Redemptor Dreadnought]].
|[[Codex Supplement: Ultramarines (8th Edition)]], pgs. 60-61 — ''The Primarch's Chosen''

|-
|[[Volusius]]
|Heresy
|[[Chaplain]].
|[[The Atonement of Fire (Short Story)]]

|-
|[[Scipio Vorolanus|Vorolanus, Scipio]]
|
|[[Tactical Squad|Tactical Sergeant]], 'The Thunderbolts', [[2nd Company (Ultramarines)|Second Company]].  Vorolanus leads his squad in recon missions when scout units are unavailable.
|[[Codex: Space Marines (5th Edition)]], pgs. 18-19, 40<br />[[Assault on Black Reach (Novella)]], {{Cite This}};<br />[[The Chapter's Due (Novel)]], {{Cite This}};<br />[[Fall of Damnos (Novel)]], {{Cite This}}

|-
|[[Voronus]]
|Post-Heresy ([[M41]])
|[[Space Marine Sergeant|Sergeant]].
|[[Dataslate: Tyrannic War Veterans]], pg. 11

|-
|[[Gren Vosotho|Vosotho, Gren]]
|Pre-Heresy
|[[Legion Master|Lord Commander]] prior to the rediscovery of [[Roboute Guilliman]].
|[[The Horus Heresy Book Five - Tempest]], pgs. 73-75

|-
|[[Vultius]]
|Heresy
|[[Space Marine Captain|Captain]].
|[[Censure (Short Story)]] — [[Legacies of Betrayal (Anthology)]]

|-
|[[Vybalt]]
|Era Indomitus
|[[Assault Squad|Assault Marine]], [[Squad Pomibius]], [[8th Company (Ultramarines)|Eighth Company]]. Killed during a combat drop on [[Meto]].
|[[Of Honour and Iron (Novel)]], Chapter Six

|-
|[[Theokista Weir|Weir, Theokista]]
|Heresy
|[[Chapter Master]].
|

|-
|[[Weiss (Ultramarines)|Weiss]]
|Post-Heresy ([[M41]])
|[[Space Marine Lieutenant|Lieutenant]], [[5th Company (Ultramarines)|Fifth Company]].
|[[White Dwarf 97 (UK)]], pg. 42 — ''Index Astartes: Ultramarines''

|-
|[[Wenlocke]]
|Post-Heresy ([[M32]])
|[[Veteran Squad (Space Marines)|Veteran]]. Travelled to [[Sotha]] during the [[Third Founding]] to convince [[Oberdeii]] to become the first [[Chapter Master]] of a new [[Chapter]], which became known as the [[Scythes of the Emperor]], joining it in the process.
|[[The Aegidan Oath (Short Story)]] - [[Scythes of the Emperor (Anthology)]]

|-
|[[Wolf]]
|Post-Heresy ([[M41]])
|[[Chaplain]], [[4th Company (Ultramarines)|Fourth Company]].
|[[White Dwarf 97 (UK)]], pg. 42 — ''Index Astartes: Ultramarines''

|-
|[[Xarveus]]
|
|Member of the [[Deathwatch]].
|[[Codex: Deathwatch (8th Edition)]], pg. 15

|-
|[[Xerid]]
|
|[[Codicier]]
|

|-
|[[Yu-wan]]
|Post-Heresy ([[M41]])
|[[Space Marine Captain|Captain]], [[7th Company (Ultramarines)|Seventh Company]].
|[[White Dwarf 97 (UK)]], pg. 42 — ''Index Astartes - Ultramarines''

|-
|[[Zalthus]]
|
|[[Company Champion]]
|{{Cite this}}

|-
|[[Zarachas]]
|Pre-Heresy
|[[Space Marine Scout|Scout]], [[221st Company (Ultramarines Legion)|221st Company]].
|[[Roboute Guilliman: Lord of Ultramar (Novel)]], Chapter Four

|-
|[[Zeno]]
|Post-Heresy ([[M41]])
|[[Space Marine Scout|Scout]], [[10th Company (Ultramarines)|10th Company]]. [[Sniper]] deployed to [[Quintarn]] during the [[Invasion of Ultramar]].
|[[Eye of Vengeance (Short Story)]]

|-
|[[Zethus (Ultramarines)|Zethus]]
|
|[[Space Marine Dreadnought|Dreadnought]] attached to the [[4th Company (Ultramarines)|4th company]]. Depicted armed with twin lascannon or assault cannon and power fist/dreadnought close combat weapon. Zethus has been known to lead fire support reserves (whirlwinds and vindicators).
|[[Courage and Honour (Novel)]], {{Cite This}}

|-
|[[Zous (Ultramarines)|Zous]]
|Post-Heresy ([[M41]])
|[[Space Marine Lieutenant|Lieutenant]], [[8th Company (Ultramarines)|Eighth Company]].
|[[White Dwarf 97 (UK)]], pg. 42 — ''Index Astartes: Ultramarines''
|}


==See also==
*[[List of Lists]]

[[Category:Characters (Ultramarines)| ]]
[[Category:Lists|Ultramarines]]

[[de:Personen (Ultramarines)]]
[[fr:Personnages (Ultramarines)]]