Roman Legion Name Generator
Numbered legions, Latin cognomina, cohorts and auxiliary units
Tap a name to copy itPress Space for a new batch500 names in this generator
Generate Roman legion names the way Rome actually designated them: a numeral plus a Latin cognomen such as Legio VI Ferrata or Legio XII Fulminata, alongside auxiliary cohorts, cavalry alae, late-imperial field units, and English-language legion names for fantasy armies.
About roman legion names
A real Roman legion was named in two parts: a numeral and a cognomen. The number came from the order in which the legion was raised, which is why the empire could have two Legio III at once (Gallica, Cyrenaica, Augusta and Italica all carried it). The cognomen told you something specific: where the legion had served (Hispana, Macedonica), the emperor who raised it (Augusta, Claudia, Ulpia, Flavia), a patron god (Apollinaris, Minervia, Fulminata for Jupiter's thunderbolt), or an earned reputation (Victrix, Ferrata the ironclad, Rapax the rapacious, Alaudae the larks). Honorifics like Pia Fidelis were awarded for loyalty in a civil war and stacked onto the name, giving mouthfuls like Legio XIV Gemina Martia Victrix.
Legions were only part of the army. Auxiliary infantry cohorts and cavalry alae were named for the people who first filled them (Cohors I Batavorum, Ala Petriana), and the late empire fielded units with fierce nicknames such as the Cornuti, Petulantes and Ioviani. The list below mixes all of these with original Latin cognomina and English legion names that keep the Roman shape for fantasy or sci-fi settings.
Tips for choosing a name
- Keep the numeral low and the cognomen meaningful. Rome rarely went above XXX, and a cognomen like Scythica or Fretensis implies a campaign history you can write later.
- Stack honorifics to show age and loyalty: a young legion is Legio IV Nova; a veteran of three civil wars is Legio IV Nova Pia Fidelis Victrix.
- Remember cognomina agree with legio, a feminine noun, so use the -a or -trix forms (Ferrata, Victrix, Ultrix), not Ferratus or Victor.
- For cohorts and alae, name the unit after a conquered people or region plus a numeral, and add Milliaria or Equitata to signal size or mixed cavalry.
- In fantasy settings, translate the epithet instead of inventing dog Latin: the Thunderbolt Legion or the Legion of the Strait reads as Roman without needing a dictionary.
Frequently asked questions
How were Roman legions actually named?
By a number and a cognomen. The number reflected the order of raising, and the cognomen recorded an origin, a founding emperor, a patron deity, a province of service, or an earned reputation. Numbers were reused, so the cognomen is what made a legion unique.
Why were there several legions with the same number?
Different commanders raised legions independently during the civil wars of the first century BC, and Augustus kept the duplicates rather than renumbering them. That is why Legio III Gallica, Legio III Cyrenaica and Legio III Augusta all served at the same time.
What do common cognomina like Victrix, Gemina and Fulminata mean?
Victrix means victorious; Gemina means twin, given when two depleted legions were merged; Fulminata means thunderbolt-armed; Ferrata means ironclad; Rapax means predatory; Pia Fidelis means dutiful and loyal; Adiutrix means helper, used for legions raised from marines.
Can I use these names for a fantasy or sci-fi legion?
Yes. The historical names are public knowledge, and the original Latin and English entries are free to use in novels, tabletop games, wargames and video games. Swap the numeral or translate the epithet to fit your own empire.
All 500 roman legion names
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- Legio I Adiutrix
- Legio I Germanica
- Legio I Italica
- Legio I Minervia
- Legio I Parthica
- Legio I Macriana Liberatrix
- Legio II Augusta
- Legio II Adiutrix
- Legio II Italica
- Legio II Parthica
- Legio II Traiana Fortis
- Legio III Augusta
- Legio III Cyrenaica
- Legio III Gallica
- Legio III Italica
- Legio III Parthica
- Legio IV Flavia Felix
- Legio IV Macedonica
- Legio IV Scythica
- Legio V Alaudae
- Legio V Macedonica
- Legio VI Ferrata
- Legio VI Victrix
- Legio VII Claudia Pia Fidelis
- Legio VII Gemina
- Legio VIII Augusta
- Legio IX Hispana
- Legio X Fretensis
- Legio X Gemina
- Legio X Equestris
- Legio XI Claudia
- Legio XII Fulminata
- Legio XIII Gemina
- Legio XIV Gemina Martia Victrix
- Legio XV Apollinaris
- Legio XV Primigenia
- Legio XVI Flavia Firma
- Legio XVI Gallica
- Legio XVII
- Legio XVIII
- Legio XIX
- Legio XX Valeria Victrix
- Legio XXI Rapax
- Legio XXII Deiotariana
- Legio XXII Primigenia
- Legio XXX Ulpia Victrix
- Legio I Iovia
- Legio II Herculia
- Legio I Maximiana
- Legio I Flavia Constantia
- Legio I Illyricorum
- Legio II Flavia Virtutis
- Legio III Diocletiana
- Legio IV Martia
- Legio V Iovia
- Legio VI Herculia
- Legio I Noricorum
- Legio I Isaura Sagittaria
- Legio I Armeniaca
- Legio II Armeniaca
- Legio I Pontica
- Legio III Flavia Salutis
- Legio I Iulia Alpina
- Legio II Iulia Alpina
- Legio III Iulia Alpina
- Legio XII Victrix
- Legio I Martia
- Legio IV Italica
- Legio II Britannica
- Legio V Parthica
- Legio VI Parthica
- Legio VI Hispaniensis
- Legio XVIII Libyca
- Legio I Flavia Gallicana Constantia
- Legio II Flavia Constantia
- Legio II Isaura
- Legio III Isaura
- Legio I Flavia Pacis
- Legio I Flavia Martis
- Legio II Felix Valentis Thebaeorum
- Legio I Flavia Theodosiana
- Legio Prima Adiutrix
- Legio Secunda Augusta
- Legio Tertia Gallica
- Legio Quarta Scythica
- Legio Quinta Alaudae
- Legio Sexta Ferrata
- Legio Septima Gemina
- Legio Octava Augusta
- Legio Nona Hispana
- Legio Decima Fretensis
- Legio Undecima Claudia
- Legio Duodecima Fulminata
- Legio Tertia Decima Gemina
- Legio Vicesima Valeria Victrix
- Legio Tricesima Ulpia Victrix
- The Ninth Legion
- The Lost Ninth
- The Ironclad Sixth
- The Thunderbolt Twelfth
- The Larks
- The Twin Legion
- The Legion of the Strait
- The Rapacious Twenty-First
- The Valiant and Victorious Twentieth
- The Emperor's Tenth
- Caesar's Tenth
- The Augustan Eighth
- The Macedonian Fourth
- The Gallic Third
- The Cyrenaican Third
- The Spanish Ninth
- The Claudian Seventh
- The Deiotarian Twenty-Second
- The Firstborn Legion
- The Legions of Varus
- The Legion of Apollo
- The Legion of Minerva
- The Legion of Jupiter
- The Legion of Hercules
- The Legion of Mars
- The Liberator Legion
- The Twin Martian Victorious Fourteenth
- The Parthian Legions
- The Italian Legion
- The Scythian Fourth
- Legio XXIII Aquilifera
- Legio XXIV Lupina
- Legio XXV Nocturna
- Legio XXVI Ignea
- Legio XXVII Glacialis
- Legio XXVIII Montana
- Legio XXIX Maritima
- Legio XXXI Saxea
- Legio XXXII Ferox
- Legio XXXIII Tenax
- Legio XXXIV Audax
- Legio XXXV Celer
- Legio I Aeterna
- Legio II Invicta
- Legio III Concors
- Legio IV Fidelis Constans
- Legio V Vigil
- Legio VI Ardens
- Legio VII Lucida
- Legio VIII Umbrosa
- Legio IX Nivalis
- Legio X Aurea
- Legio XI Argentea
- Legio XII Aenea
- Legio XIII Sanguinea
- Legio XIV Candida
- Legio XV Corvina
- Legio XVI Leonina
- Legio XVII Aquilina
- Legio XVIII Taurina
- Legio XIX Ursina
- Legio XX Aprina
- Legio XXI Draconia
- Legio XXII Serpentina
- Legio XXIII Vulpina
- Legio XXIV Cervina
- Legio XXV Tigrina
- Legio XXVI Pantherina
- Legio XXVII Arietina
- Legio XXVIII Elephantina
- Legio I Dacica
- Legio II Rhaetica
- Legio III Pannonica
- Legio IV Syriaca
- Legio V Aegyptia
- Legio VI Africana
- Legio VII Numidica
- Legio VIII Mauretanica
- Legio IX Thracica
- Legio X Moesica
- Legio XI Dalmatica
- Legio XII Cappadocica
- Legio XIII Galatica
- Legio XIV Cilicia
- Legio XV Bithynica
- Legio XVI Arabica
- Legio XVII Iudaica
- Legio XVIII Mesopotamica
- Legio XIX Sarmatica
- Legio XX Gothica
- Legio XXI Alamannica
- Legio XXII Persica
- Legio XXIII Belgica
- Legio XXIV Lugdunensis
- Legio XXV Narbonensis
- Legio XXVI Aquitanica
- Legio XXVII Tarraconensis
- Legio XXVIII Baetica
- Legio XXIX Lusitanica
- Legio XXX Sicula
- Legio VIII Illyrica
- Legio IX Danubiana
- Legio X Rhenana
- Legio XI Alpina
- Legio XII Apennina
- Legio XIII Tiberina
- Legio XIV Padana
- Legio XV Euphratensis
- Legio XVI Nilotica
- Legio I Aelia
- Legio II Antoniniana
- Legio III Severiana
- Legio IV Gordiana
- Legio V Aureliana
- Legio VI Probiana
- Legio VII Constantiniana
- Legio VIII Valentiniana
- Legio IX Honoriana
- Legio X Iustiniana
- Legio I Dianae
- Legio II Veneris
- Legio III Mercurialis
- Legio IV Neptunia
- Legio V Vulcania
- Legio VI Cerealis
- Legio VII Saturnia
- Legio VIII Iunonia
- Legio IX Vestalis
- Legio X Bellonaria
- Legio XI Victoriae
- Legio XII Fortunae
- Legio XIII Solis Invicti
- Legio XIV Lunae
- Legio XV Mithraea
- Legio XVI Isiaca
- Legio XVII Serapia
- Legio XVIII Bacchica
- Legio XIX Plutonia
- Legio XX Quirina
- Legio XXI Ianuaria
- Legio XXII Romana
- Legio XXXV Victrix Pia Fidelis
- Legio I Ulpia Fidelis
- Legio II Traiana Invicta
- Legio III Flavia Felix Gemina
- Legio IV Claudia Constans
- Legio V Antoniniana Pia
- Legio VI Severiana Victrix
- Legio VII Valeria Fortis
- Legio VIII Aurelia Tenax
- Legio IX Hadriana Firma
- Legio X Augusta Aeterna
- Legio XI Gemina Rapax
- Legio XII Macedonica Felix
- Legio XIII Ferrata Invicta
- Legio XIV Hispana Fidelis
- Legio XV Gallica Constans
- Legio XVI Italica Victrix
- Legio XVII Primigenia Pia
- Legio XVIII Apollinaris Aurea
- Legio XIX Fulminata Nova
- Legio XX Scythica Ferox
- Legio I Sagittaria
- Legio II Equitata
- Legio III Classica
- Legio IV Cataphractaria
- Legio V Lanciaria
- Legio VI Scutata
- Legio VII Hastata
- Legio VIII Pilata
- Legio IX Gladiata
- Legio X Funditoria
- Legio XIII Velox
- Legio XV Marina
- Legio XVI Fluminea
- Legio XVII Castrensis
- Legio XVIII Limitanea
- Legio XIX Comitatensis
- Legio XX Palatina
- Legio I Gemella
- Legio VIII Veteranorum
- Legio XII Civium Romanorum
- Legio XXI Ultima
- Legio XXVII Clara
- Legio XXVIII Splendida
- Legio XXIX Magnifica
- Legio XXX Gloriosa
- Legio IX Redux
- Legio XIV Fortunata
- Legio XVII Sacra
- Legio XX Pia Vindex
- Legio XXI Ultrix
- Legio XXII Punitrix
- Legio XXIII Domitrix
- Legio XXIV Debellatrix
- Legio XXV Expugnatrix
- Legio XXVI Conservatrix
- Legio XXVII Protectrix
- Legio XXIX Excubitrix
- Legio XXX Speculatrix
- Legio XXXI Exploratrix
- Legio XXXII Venatrix
- Legio XXXIII Praedatrix
- Legio XXXIV Raptrix
- Legio XXXV Devastatrix
- Cohors I Batavorum
- Cohors II Tungrorum
- Cohors IX Batavorum
- Cohors I Hamiorum Sagittariorum
- Cohors IV Gallorum
- Cohors I Aelia Dacorum
- Cohors I Thracum
- Cohors II Asturum
- Cohors I Vangionum
- Cohors V Raetorum
- Cohors I Frisiavonum
- Cohors I Nerviorum
- Cohors II Lingonum
- Cohors I Baetasiorum
- Cohors I Cugernorum
- Cohors I Aquitanorum
- Cohors VI Nerviorum
- Cohors I Sunucorum
- Cohors II Delmatarum
- Cohors I Hispanorum Equitata
- Cohors I Ulpia Traiana Cugernorum
- Cohors III Bracaraugustanorum
- Cohors I Fida Vardullorum
- Cohors II Pannoniorum
- Cohors I Menapiorum
- Cohors IV Lingonum
- Cohors I Morinorum
- Cohors II Gallorum Veterana
- Cohors I Celtiberorum
- Cohors I Lusitanorum
- Cohors I Cilicum
- Cohors I Ituraeorum
- Cohors I Augusta Praetoria Lusitanorum
- Cohors I Flavia Chalcidenorum
- Cohors XX Palmyrenorum
- Cohors I Germanorum
- Cohors I Brittonum
- Cohors II Britannorum Milliaria
- Cohors I Aelia Brittonum
- Cohors I Numidarum
- Cohors I Cretum Sagittariorum
- Ala I Hispanorum
- Ala Petriana
- Ala Gallorum Sebosiana
- Ala I Pannoniorum Tampiana
- Ala Augusta Gallorum Proculeiana
- Ala II Asturum
- Ala I Thracum
- Ala I Tungrorum
- Ala Indiana Gallorum
- Ala I Flavia Augusta Britannica
- Ala II Flavia Pia Fidelis
- Ala I Contariorum
- Ala I Ulpia Dromedariorum
- Ala I Hamiorum
- Ala Sulpicia
- Ala Siliana
- Ala Agrippiana Miniata
- Ala Vocontiorum
- Ala I Gallorum et Pannoniorum Catafractata
- Ala Classiana
- Numerus Hnaudifridi
- Numerus Maurorum Aurelianorum
- Numerus Barcariorum Tigrisiensium
- Numerus Exploratorum Bremeniensium
- Cuneus Frisiorum
- Cuneus Sarmatarum
- Vexillatio Legionis VI Victricis
- Vexillatio Britannica
- Vexillatio Dacica
- Cohortes Praetoriae
- Cohors I Praetoria
- Cohors X Praetoria
- Equites Singulares Augusti
- Cohortes Urbanae
- Cohortes Vigilum
- Germani Corporis Custodes
- Scholae Palatinae
- Protectores Domestici
- Candidati
- Ioviani Seniores
- Herculiani Iuniores
- Cornuti
- Brachiati
- Petulantes
- Celtae
- Batavi Seniores
- Mattiaci Iuniores
- Lanciarii Seniores
- Scutarii
- Armigeri Defensores
- Primani
- Secundani
- Tertiani
- Quartani
- Quintani
- Sextani
- Septimani
- Octavani
- Decimani
- Undecimani
- Tertiodecimani
- Vicesimani
- Tricesimani
- Fortenses
- Felices
- Victores
- Invicti
- Sagittarii Nervii
- Equites Dalmatae
- Equites Stablesiani
- Equites Promoti
- Equites Cataphractarii
- Equites Clibanarii
- Equites Scutarii
- Legio Fulminatrix
- Legio Ferrata Nova
- Legio Aquilae Nigrae
- Legio Aquilae Aureae
- Legio Lupae Romanae
- Legio Lupi Capitolini
- Legio Tauri Rubri
- Legio Apri Albi
- Legio Capricorni
- Legio Pegasi
- Legio Draconis Viridis
- Legio Serpentis Aenei
- Legio Leonis Rampantis
- Legio Cervi Albi
- Legio Corvi Nigri
- Legio Ursae Maioris
- Legio Vulturis
- Legio Delphini
- Legio Hippocampi
- Legio Tritonis
- Legio Centauri
- Legio Gryphi
- Legio Chimaerae
- Legio Sphingis
- Legio Phoenicis
- Legio Hydrae
- Legio Cerberi
- Legio Minotauri
- Legio Gorgonis
- Legio Cyclopis
- Legio Titanum
- Legio Gigantum
- Legio Ignis Sacri
- Legio Solis Orientis
- Legio Stellae Matutinae
- Legio Lunae Plenae
- Legio Noctis Aeternae
- Legio Umbrae Longae
- Legio Glaciei Borealis
- Legio Ventorum
- Legio Tempestatis
- Legio Fulguris
- Legio Tonitrus
- Legio Procellae
- Legio Ardoris
- Legio Flammae
- Legio Scintillae
- Legio I Victrix Gallorum
- Legio II Fortis Germanorum
- Legio III Ultrix Thracum
- Legio IV Felix Hispanorum
- Legio V Aeterna Britannorum
- Legio VI Concors Pannoniorum
- Legio VII Nova Dacorum
- Legio VIII Vetus Syrorum
- Legio IX Rediviva
- Legio X Aquilifera Augusta
- Legio XI Taurina Fidelis
- Legio XII Lupina Victrix
- Legio XIII Nocturna Invicta
- Legio XIV Ignea Ferox
- Legio XV Glacialis Tenax
- The Thunderbolt Legion
- The Ironclad Legion
- The Legion of the Twin Eagles
- The Legion of the Black Aquila
- The Legion of the Capitoline Wolf
- The Legion of the White Boar
- The Phoenix Legion
- The Hydra Legion
- The Legion of the Sacred Fire
- The Legion of the Rising Sun
- The Morning Star Legion
- The Full Moon Legion
- The Legion of Eternal Night
- The Long Shadow Legion
- The Northern Ice Legion
- The Legion of the Winds
- The Storm Legion
- The Lightning Legion
- The Legion of Thunder
- The Gale Legion
- The Hailstorm Legion
- Legio XXIII Felix Invicta
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