| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Geraint | GE-rient (Welsh), ji-RAYNT (English) | Welsh, Welsh Mythology, Arthurian Romance | ||
| Gereon | GE-re-awn (German) | German, Late Roman | ||
| Germana | - | Italian, Ancient Roman | ||
| Germanus | - | Ancient Roman | ||
| Gerontius | - | Late Roman | ||
| Ghenadie | - | Romanian | ||
| Gheorghe | - | Romanian | ||
| Glaucia | - | Ancient Roman | ||
| Gnaeus | GNIE-uws (Ancient Roman), NIE-əs (English) | Ancient Roman | ||
| Gordianus | - | Ancient Roman | ||
| Gratiana | - | Ancient Roman | ||
| Gratianus | - | Ancient Roman | ||
| Grigore | - | Romanian | ||
| Guenevere | - | Arthurian Romance | ||
| Guinevere | GWIN-ə-vir (English) | Arthurian Romance |