| Name | Meaning | Gender | Origin |
|---|
| Elvis | Elf-wise friend. Variant of Alvin. Made famous by singer and actor Elvis Presley.
| Male | Meaning |
| Felix | Lucky
| Male | Latin |
| Fluffy | Covered with fluff, Soft, light and airy. | Unisex | |
| Fraidy | | Unisex | Hebrew |
| Frankie | Diminutive of Frank Free: a free man. Frankie is occasionally used for girls.
| Male | |
| Fred | From Frederick - Peaceful ruler. | Male | |
| Fritz | German form of Frederick
| Male | |
| Fritz | German form of Frederick
| Male | |
| Gabriel | God is my strength
| Male | Hebrew |
| Garfield | Famous comis strip character. English: From the triangular field.
| Male | English |
| 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 |
| Gizmo | A mechanical device or gadget. | Unisex | |
| Gloriaantis | | Unisex | Hebrew |
| Grisou | | Unisex | Hebrew |
| Gus | From Gustave - Staff of the Goths | Male | English |
| Harry | estate ruler | Male | English |
| Harry | estate ruler | Male | English |
| Henry | ruler of the home | Male | |
| Izzy | Salvation By God | Male | English |
| Jack | after the Georgetown University mascot, Jack the Bulldog | Male | English |
| Jack | From John - God's gracious gift | Male | English |
| Jackson | Son of Jack | Male | English |
| Jake | From Jacob - To fill the place of another | Male | Hebrew |
| Jasper | Black stone
| Male | Persian |
| Jasper | Black stone
| Male | Persian |