| Name | Meaning | Gender | Origin |
|---|
| Gladstone | | Male | Hebrew |
| Granite | | Male | Hebrew |
| Grant | Bestow or great: tall. The American General and president Ulysses S. Grant. Surname.
| Male | Scottish |
| Graphite | | Unisex | Hebrew |
| Gretel | from Hansel & Gretel | Unisex | |
| Hank | ruler of an estate | Male | English |
| Hilary | cheerful, happy | Male | Latin |
| Holstein | | Unisex | Hebrew |
| Howard | guardian of the home, watchman | Male | |
| Ice | Water frozen solid | Unisex | |
| Iron | | Unisex | Hebrew |
| Irving | handsome, fair | Male | Scottish |
| Ivory | The hard, smooth, yellowish-white of an elephant's tusk. | Male | Word |
| Jady | The Gemstone Jade; The Color Green. | Unisex | English |
| Jaeger | Hunter | Unisex | German |
| Jameson | son of James | Male | English |
| Jasper | Black stone
| Male | Persian |
| Jasper | Black stone
| Male | Persian |
| Jasper | Black stone
| Male | Persian |
| Jayda | Green Gemstone | Unisex | English |
| Jelly | | Unisex | Hebrew |
| Jesper | Treasure | Unisex | Danish |
| Jet | A deep black colour. Aircraft engine that propels an aircraft forward by expelling exhaust gases toward the rear. | Male | Mineral |
| Jethro | excellence | Male | Hebrew |
| Jett | Jet Black Gem | Male | English |