| Name | Meaning | Gender | Origin |
|---|
| Gadget | | Male | Hebrew |
| Galahad | Son of Lancelot
| Male | |
| Galileo | from Galilee | Male | Italian |
| Gandalf | | Male | Hebrew |
| Garfield | Famous comis strip character. English: From the triangular field.
| Male | English |
| Gatsby | | Male | Hebrew |
| Gawain | White Hawk | Male | Scottish |
| Gem | A mineral that has been cut and polished | Unisex | |
| 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 |
| Geronimo | Greek, sacred name | Male | Native |
| Giggles | | Unisex | Hebrew |
| Ginger | A spice | Female | English |
| Gingersnap | | Male | Hebrew |
| Gizmo | A mechanical device or gadget. | Unisex | |
| Godiva | Gift of God. | Female | English |
| Goldilocks | | Unisex | Hebrew |
| Gracie | Grace
| Female | English |
| Griselda | French for gray | Female | |
| Gucci | | Female | Hebrew |
| Guinevere | white shadow, white wave | Female | Welsh |
| Guinness | Brand of stout beer from Ireland. | Unisex | |
| Gulliver | glutton | Male | Irish |
| Gumdrop | | Unisex | Hebrew |
| Gypsy | Wanderer
| Female | English |
| Gyro | | Unisex | Hebrew |