| Name | Meaning | Gender | Origin |
|---|
| Gargantua | | Unisex | Hebrew |
| Gary | spear carrier | Male | English |
| Gato | | Unisex | Hebrew |
| Gatos | | Unisex | Hebrew |
| Gatsby | | Male | Hebrew |
| Gavin | White hawk
| Male | Celtic |
| George | Farmer. In medieval legend St. George: (the knight who became patron saint of England) struggled with a fire-breathing dragon symbolizing the Devil.
| Male | Greek |
| Georgie | farmer | Male | English |
| Gizmo | A mechanical device or gadget. | Unisex | |
| Gordon | from the cornered hill | Male | Scottish |
| Gracy | | Unisex | Hebrew |
| Graham | gravelly homestead | Male | Scottish |
| Graycie | | Unisex | Hebrew |
| Grayson | son of the bailiff | Male | English |
| Gretel | from Hansel & Gretel | Unisex | |
| Grizabella | | Unisex | Hebrew |
| Gus | From Gustave - Staff of the Goths | Male | English |
| Guy | guide; wood or wide | Male | |
| Halo | Circle of light surrounding the sun or moon. Luminous ring around the head of religious figures. | Unisex | |
| Hansel | God is gracious | Male | |
| Helix | | Unisex | Hebrew |
| Hobbes | bright fame | Male | English |
| Hubert | bright, shining intellect | Male | |
| Huckleberry | | Male | Hebrew |
| Hunter | A hunter. One who searches for something | Male | English |