| Guendolen | | - | English (Rare) | |
| GueniÈVre | | - | French | |
| Guillaume | | gee-OM | French | |
| Guiscard | | gees-KAHR | Medieval French | |
| Gulbrandr | | - | Ancient Scandinavian | |
| Gulla | | - | Ancient Scandinavian | |
| Gumarich | | - | Ancient Germanic | |
| Gunda | | GUWN-dah (German) | German, Swedish, Norwegian, Danish, Ancient Germanic | |
| Gundahar | | - | Ancient Germanic, Germanic Mythology | |
| Gundhram | | - | Ancient Germanic | |
| Gundisalvus | | - | Ancient Germanic (Latinized) | |
| Gunna | | - | Danish, Ancient Scandinavian | |
| Gunnarr | | - | Ancient Scandinavian, Norse Mythology | |
| GunnbjÖRg | | - | Ancient Scandinavian | |
| Gunnhildr | | - | Ancient Scandinavian | |