| Gottlieb | | GAWT-leep | German | |
| Gottlob | | - | German | |
| Gottschalk | | - | German (Archaic) | |
| Gozzo | | - | Ancient Germanic | |
| Gratia | | - | German | |
| Gregor | | GRE-gawr (German) | German, Scottish, Slovak, Slovene | |
| Greta | | GRE-tah (German), GRET-ə (English) | Swedish, German, English | |
| Gretchen | | GRET-khen (German), GRECH-ən (English) | German, English | |
| Grete | | GRE-tə (German) | German, Danish, Norwegian | |
| Gretel | | GRE-tel | German | |
| Grimhilt | | - | Ancient Germanic, Germanic Mythology | |
| Gudrun | | GOOD-roon (German) | Norse Mythology, Swedish, Norwegian, Danish, German | |
| Guido | | GWEE-do (Italian), GEE-do (German) | Italian, German | |
| Gumarich | | - | Ancient Germanic | |
| Gunda | | GUWN-dah (German) | German, Swedish, Norwegian, Danish, Ancient Germanic | |