| Name | Meaning | Gender | Origin |
|---|
| Geoff | Peace Of God | Unisex | 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 |
| Gerald | Ruler With The Spear | Male | German |
| Grey | Gray-Haired. | Male | English |
| Griffin | strong lord | Male | Welsh |
| Gunner | bold warrior | Male | Scandinavian |
| Gus | From Gustave - Staff of the Goths | Male | English |
| Hawk | hawk, a bird | Male | Nature |
| Hercules | glory of Hera | Male | Greek |
| Howie | Brave Heart, Mind | Unisex | English |
| Hudson | Hugh's son | Male | English |
| Igor | Scottish variation of Welsh Ifor, lord or English form of Scandinavian Ifar, yew | Male | Russian |
| Isaac | laughing one | Male | Hebrew |
| Isaiah | salvation of the Lord | Male | Hebrew |
| Jack | after the Georgetown University mascot, Jack the Bulldog | Male | English |
| Jack | From John - God's gracious gift | Male | English |
| Jacob | The supplanter, held by the heel | Male | Hebrew |
| Jagger | a teamster | Male | English |
| Jake | From Jacob - To fill the place of another | Male | Hebrew |
| James | From Jacob - To fill the place of another, supplanter. | Male | English |
| Jarvis | driver, a conqueror | Male | English |
| Jason | the Lord is salvation | Male | Hebrew |
| Jay | jaybird | Male | Latin |
| Jerry | after Jerry Garcia, The Grateful Dead | Male | English |
| Jet | A deep black colour. Aircraft engine that propels an aircraft forward by expelling exhaust gases toward the rear. | Male | Mineral |