| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Gaiana | - | Ancient Greek (Latinized) | ||
| Gaiane | - | Ancient Greek | ||
| Gaios | - | Ancient Greek, Biblical Greek | ||
| Gaius | GAH-yoos (Ancient Roman), GAH-yuws (Ancient Roman), GIE-əs (English) | Ancient Roman, Biblical Latin, Biblical | ||
| Galchobhar | - | Ancient Irish | ||
| Galene | - | Ancient Greek | ||
| Galenos | - | Ancient Greek | ||
| Gallus | - | Ancient Roman | ||
| Gasto | - | Ancient Germanic | ||
| Gaufrid | - | Ancient Germanic | ||
| Gautselin | - | Ancient Germanic | ||
| Gautstafr | - | Ancient Scandinavian | ||
| Gebahard | - | Ancient Germanic | ||
| Gebhard | - | German, Ancient Germanic | ||
| Geirr | - | Ancient Scandinavian |