| Name | Meaning | Gender | Origin |
|---|
| Funguy | | Unisex | Hebrew |
| Fuzzbutt | | Unisex | Hebrew |
| Gabby | Strength Of God | Unisex | English |
| Gala | festive party. Joyful. Abbreviation of Abigail. Gael is a term for descendants of the ancient Celts in Scotland: Ireland and the Isle of Man.
| Female | Russian |
| Gato | | Unisex | Hebrew |
| Gem | A mineral that has been cut and polished | Unisex | |
| Genevieve | white wave | Female | English |
| Genny | short for Generic Cat | Unisex | |
| Geordi | Hill Near Meadows | Unisex | Greek |
| Gertrude | Strong Spear | Female | Dutch |
| Gidget | | Unisex | Hebrew |
| Girlfriend | A favoured female friend or sweetheart. | Unisex | |
| Godiva | Gift of God. | Female | English |
| Golly Gee | | Unisex | Hebrew |
| Gremlin | | Unisex | Hebrew |
| Griselda | French for gray | Female | |
| Grits | | Unisex | Hebrew |
| Gucci | | Female | Hebrew |
| Guinevere | white shadow, white wave | Female | Welsh |
| Guster | | Unisex | Hebrew |
| Gypsy | Wanderer
| Female | English |
| Hadley | heath covered meadow | Female | English |
| Hammy | | Unisex | Hebrew |
| Handsome | Of attractive bearing, good-looking. | Unisex | |
| Harley | Old English for Army Meadow. From the hare meadow | Female | English |