| Name | Meaning | Gender | Origin |
|---|
| Gizmo | A mechanical device or gadget. | Unisex | English |
| Goliath | Tall | Unisex | Hebrew |
| Goober | Southern US term for peanut. Also chocolate covered peanuts | Unisex | English |
| Goofy | | Unisex | Hebrew |
| Grady | Child of nobility | Male | Gaelic |
| Graeme | Abode | Unisex | English |
| Guadalupe | Valley of the wolves | Unisex | Spanish |
| Gucci | | Unisex | Hebrew |
| Guido | Forest | Male | Germanic |
| Gunner | Battle | Male | Norse |
| Haden | Valley with hay | Male | English |
| Hank | God is gracious | Male | Hebrew |
| Harley | Hare clearing | Male | English |
| Harold | Leader of an army | Male | English |
| Harvey | Battle worthy or carnage worthy | Male | English |
| Haven | Haven | Male | English |
| Henry | Home ruler | Male | Germanic |
| Hilton | Settlement on hill or slope | Male | English |
| Homer | Pledge or hostage | Male | Greek |
| Hooch | | Unisex | Hebrew |
| Hunter | Hunter | Male | English |
| Iggy | Latin, fiery | Male | English |
| Igor | Warrior archer | Male | Norse |
| Indy | After Indiana Jones | Unisex | English |
| Izzy | Unknown | Male | English |
| J.r. | After the TV character in Dallas | Unisex | English |
| Jabba | | Unisex | Hebrew |
| Jack | God is gracious | Male | Hebrew |
| Jackpot | | Unisex | Hebrew |
| Jacob | Supplanter | Male | Hebrew |