| Name | Meaning | Gender | Origin |
| Flash | To move rapidly. | Unisex | English |
| Franky | From France | Unisex | Latin |
| Fuzzy | | Unisex | Hebrew |
| Ghost | A haunting spirit or memory. One who moves noiselessly. | Unisex | English |
| Gilbert | Bright oath | Male | Germanic |
| Gin | Silvery | Female | English |
| Goliath | Tall | Unisex | Hebrew |
| Gonzo | Bizarre, unconventional, oddball. | Unisex | English |
| Griffin | Reddish | Male | Welsh |
| Gunner | Battle | Male | Norse |
| Gus | From Gustave - Staff of the Goths | Male | English |
| Guy | Guide | Male | French |
| Hamlet | Foolish and dull | Male | Danish |
| Happy | Showing satisfaction or joy | Unisex | English |
| Harley | Hare clearing | Male | English |
| Harry | Home ruler | Male | Germanic |
| Harvey | Battle worthy or carnage worthy | Male | English |
| Heathcliff | Cliff top covered in heather | Unisex | English |
| Hendrix | | Unisex | Hebrew |
| Hercules | Grandiose gift | Male | Greek |
| Herman | Man in the army | Male | Germanic |
| Hershey | Brand of chocolate. | Unisex | English |
| Hooch | | Unisex | Hebrew |
| Hugo | Mind, heart or spirit | Male | Germanic |
| Humphrey | Peaceful warrior | Male | Germanic |
| Hunter | Hunter | Male | English |
| Hyde | Exquisite | Unisex | English |
| Igloo | Dome shaped Eskimo house made of blocks of snow. | Unisex | English |
| Igor | Warrior archer | Male | Norse |
| Indiana | Land of Indians | Unisex | English |