| Name | Meaning | Gender | Origin |
|---|
| Grim | as in Reaper | Unisex | |
| Gris | Grey. | Unisex | |
| Gris | Grey. | Unisex | |
| Guinness | Brand of stout beer from Ireland. | Unisex | |
| Gunnar | bold warrior | Male | Scandinavian |
| Gwynneth | From Gwynaeth (Luck Or Happiness). Sometimes Associated With New Welsh County Name Gwynedd But That Has A Different (Although Ancient) Origin. | Unisex | Welsh |
| Harlequin | | Unisex | Hebrew |
| Harvest | | Unisex | Hebrew |
| Harvey | as in The Pooka | Male | |
| Heimdall | Viking mythology: The guard of Bifrost | Unisex | |
| Hershey | Brand of chocolate. | Male | |
| Horton | gray settlement | Male | English |
| Hugh | bright in mind and spirit | Male | English |
| Hunter | A hunter. One who searches for something | Male | English |
| Ice | Water frozen solid | Unisex | |
| Icicle | | Unisex | Hebrew |
| Igloo | Dome shaped Eskimo house made of blocks of snow. | Unisex | |
| Indie | | Unisex | Hebrew |
| Inky | | Unisex | Hebrew |
| Irving | handsome, fair | Male | Scottish |
| Ivor | yew | Male | Scottish |
| Ivory | The hard, smooth, yellowish-white of an elephant's tusk. | Male | Word |
| Jack | after the Georgetown University mascot, Jack the Bulldog | Male | English |
| Jack | From John - God's gracious gift | Male | English |
| Jady | The Gemstone Jade; The Color Green. | Unisex | English |