| Name | Meaning | Gender | Origin |
|---|
| Fire | | Male | Hebrew |
| Flash | To move rapidly. | Male | Word |
| Floyd | after Pink Floyd | Male | Welsh |
| Fluffy | Covered with fluff, Soft, light and airy. | Unisex | |
| Fondue | | Unisex | Hebrew |
| Fonzi | | Unisex | Hebrew |
| Frankie | Diminutive of Frank Free: a free man. Frankie is occasionally used for girls.
| Male | |
| Freckles | Dotted with small brownish spots. | Unisex | |
| Freeway | | Unisex | Hebrew |
| Frisky | | Unisex | Hebrew |
| Frostbite | | Unisex | Hebrew |
| Frosty | Covered with white frost. Cold in manner | Male | |
| Funky | | Unisex | Hebrew |
| Fuzzie | | Unisex | Hebrew |
| Gambler | | Unisex | Hebrew |
| Garlic | | Unisex | Hebrew |
| Geb | | Unisex | Hebrew |
| Gecko | | Unisex | Hebrew |
| Gemini | The Twins | Male | Latin |
| Genie | Of Noble Birth | Unisex | English |
| Ghost | A haunting spirit or memory. One who moves noiselessly. | Unisex | |
| Ghostbuster | | Unisex | Hebrew |
| Gideon | The destroyer; brave spirit. mighty warrior. | Male | Hebrew |
| Gigolo | | Male | Hebrew |
| Gilligan | | Male | Hebrew |