| Name | Meaning | Gender | Origin |
|---|
| Gaynor | Son Of The Fair-Haired One | Female | Celtic |
| Gem | A mineral that has been cut and polished | Unisex | |
| Gemma | precious stone | Female | Italian |
| Genevieve | white wave | Female | English |
| Genny | short for Generic Cat | Unisex | |
| Ghost | A haunting spirit or memory. One who moves noiselessly. | Unisex | |
| Giroux | | Unisex | Hebrew |
| Glass | | Unisex | Hebrew |
| Goose | | Unisex | Hebrew |
| Gowain | | Unisex | Hebrew |
| Gucci | | Female | Hebrew |
| Güero | | Unisex | Hebrew |
| Guillen | | Unisex | Hebrew |
| Guinevere | white shadow, white wave | Female | Welsh |
| Gunter | War Army | Unisex | German |
| Gwen | Mythical son of Gwastad
| Female | English |
| Gwendolyn | White, pure
| Female | English |
| Gwynneth | From Gwynaeth (Luck Or Happiness). Sometimes Associated With New Welsh County Name Gwynedd But That Has A Different (Although Ancient) Origin. | Unisex | Welsh |
| Hailey | hay field | Female | English |
| Half Moon | | Unisex | Hebrew |
| Halo | Circle of light surrounding the sun or moon. Luminous ring around the head of religious figures. | Unisex | |
| Hammer | A Hammer | Unisex | Scandinavian |
| Hannah | From Anne - Full of grace of God | Female | Hebrew |
| Hardesty | | Unisex | Hebrew |
| Harlequin | | Unisex | Hebrew |