| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Gaius | GAH-yoos (Ancient Roman), GAH-yuws (Ancient Roman), GIE-əs (English) | Ancient Roman, Biblical Latin, Biblical | ||
| Gallus | - | Ancient Roman | ||
| Germana | - | Italian, Ancient Roman | ||
| Germanus | - | Ancient Roman | ||
| Glaucia | - | Ancient Roman | ||
| Gnaeus | GNIE-uws (Ancient Roman), NIE-əs (English) | Ancient Roman | ||
| Gordianus | - | Ancient Roman | ||
| Gratiana | - | Ancient Roman | ||
| Gratianus | - | Ancient Roman |