This list includes 18 Latin boy names that start with G, from “Gaetanus” to “Gratus”. Many are Roman praenomina, cognomina, or saint names still used across modern languages.

Latin boy names that start with G are masculine given names of Latin origin beginning with the letter G. Examples like “Gaius” and “Gregorius” reflect Roman family names and early Christian influences.

Below you’ll find the table with Name, Pronunciation, Meaning, and Notes.

Name: Shows the standard Latin spelling so you can compare exact forms and variants at a glance.

Pronunciation: Provides a simple IPA or respelling guide so you can pronounce each name confidently and naturally.

Meaning: Summarizes the name’s etymology or literal meaning in a few words to guide your choice.

Notes: Highlights usage, historical context, saint associations, and modern popularity to help you assess suitability.

Latin boy names that start with G

NamePronunciationMeaningOrigin/Etymology
GaiusGYE-us (ˈɡaː.i.us)ancient Roman praenomen; meaning uncertainOld Latin praenomen; attested widely (Cicero, inscriptions)
GnaeusGNAY-us (ˈɡnai̯.us)ancient praenomen; meaning uncertainClassical praenomen (abbr. Cn.); attested (Livy, inscriptions)
GallusGAL-lus (ˈɡal.lus)rooster; also “Gaul” or “Gaulish”From Latin gallus; attested as cognomen (Tacitus, inscriptions)
GalbaGAL-ba (ˈɡal.ba)obscure; family cognomenCognomen attested in Republican/Imperial Rome (Servius Sulpicius Galba)
GelliusGEL-ee-us (ˈɡel.li.us)nomen of the Gellia gens (origin uncertain)Nomen Gellius attested (Aulus Gellius, inscriptions)
GeminusGEM-in-us (ˈɡe.mi.nus)twinFrom Latin adjective geminus; attested (Ovid, inscriptions)
Geminianusge-MIN-ee-ah-nus (ɡe.miˈni.a.nus)pertaining to Geminus (of the twin)Derived from Geminus; attested (Saint Geminianus, inscriptions)
Glabrioglah-BREE-oh (ɡlaˈbri.o)from glaber “bald”Cognomen from Latin glaber; attested (inscriptions, Tacitus)
GracchusGRAK-kus (ˈɡrak.kus)family cognomen (meaning uncertain)Cognomen attested (Tiberius and Gaius Gracchus)
GratusGRA-tus (ˈɡra.tus)pleasing, gratefulFrom Latin gratus; attested in inscriptions and hagiography
Gratianusgra-TI-a-nus (ɡraˈti.a.nus)pertaining to gratus; “gracious”Derived from Latin gratus; attested (Emperor Gratian, inscriptions)
Gaudentiusgow-DEN-ti-us (ɡau̯ˈden.ti.us)rejoicing (he who rejoices)From Latin gaudēre “to rejoice”; attested (saints, inscriptions)
Gaetanusguy-TAH-nus (ɡai̯ˈtaː.nus)of Caieta (from Gaeta)Demonym from Caieta (town); attested in medieval Latin (saint Gaetanus)
Germanusger-MAH-nus (ɡerˈmaː.nus)brother or “of/related to the Germans”From Latin germanus; attested (Saint Germanus, inscriptions)
Gallicanusgal-li-KAH-nus (ɡal.liˈka.nus)of Gaul or “Gallic”From Gallia + -canus; attested as cognomen (inscriptions)
Gallienusgal-LEE-en-us (ɡalˈli.e.nus)from Gallia/Gallus (Gaulish connection)Imperial cognomen attested (Emperor Gallienus, Historia Augusta)
GessiusGESS-ee-us (ˈɡes.si.us)nomen of the Gessia gens (origin uncertain)Nomen attested (Gessius Florus, inscriptions)
Glaucus? (exclude)INVALIDINVALIDINVALID

Descriptions

Gaius
The archetypal Roman praenomen borne by Caesar and many others; ubiquitous in classical sources and inscriptions.
Gnaeus
Common Republican praenomen, often abbreviated Cn.; appears across Republican and Imperial records.
Gallus
A versatile name/cognomen evoking rooster or Gaul; used from Republic through late antiquity.
Galba
Best known from Emperor Galba (AD 68–69); originally a hereditary cognomen.
Gellius
Famous bearer Aulus Gellius, author of Noctes Atticae; used as a family name in Roman literature.
Geminus
Frequently a cognomen meaning “twin”; also used as a personal name in antiquity.
Geminianus
Name of an early bishop and saint (Modena); used in late antique ecclesiastical contexts.
Glabrio
A Roman cognomen meaning “bald” that appears in senatorial families and inscriptions.
Gracchus
Famous Republican cognomen associated with social reformers Tiberius and Gaius Gracchus.
Gratus
Used as a personal name and by early Christians; several saints named Gratus.
Gratianus
Imperial and ecclesiastical name from late antiquity; shortened modern form “Gratian.”
Gaudentius
Popular among bishops and saints in late antiquity; a distinctly Latin Christian name.
Gaetanus
Medieval Latin name honoring origin from Caieta (modern Gaeta); became Italian Gaetano.
Germanus
Used widely in Christian era; many bishops and saints named Germanus.
Gallicanus
A cognomen indicating Gallic connection; appears in late antique onomastics.
Gallienus
Name of a 3rd-century emperor; derived from Gallus/Gallia, used in imperial titulature.
Gessius
A Roman family name attested in imperial sources and inscriptions; occasionally appears as a personal name.
Glaucus? (exclude)
INVALID
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