| Name | Meaning | Gender | Origin |
|---|
| Holly | Holy
| Female | English |
| Honey | Term of endearment. Sweet syrup produced by bees | Female | Word |
| Horton | gray settlement | Male | English |
| Hugh | bright in mind and spirit | Male | English |
| Hunter | A hunter. One who searches for something | Male | English |
| Hyacinth | after the character in the sitcom Keeping Up Appearances | Female | |
| Ice | Water frozen solid | Unisex | |
| Icicle | | Unisex | Hebrew |
| Igloo | Dome shaped Eskimo house made of blocks of snow. | Unisex | |
| Indie | | Unisex | Hebrew |
| Indigo | A dark blue plant dye | Female | Greek |
| Inky | | Unisex | Hebrew |
| Iona | flower name, purple jewel | Female | Scottish |
| Iris | rainbow, a play of colours | Female | |
| Irving | handsome, fair | Male | Scottish |
| Isis | throne | Female | Egyptian |
| Ivor | yew | Male | Scottish |
| Ivory | The hard, smooth, yellowish-white of an elephant's tusk. | Male | Word |
| Ivy | ivy plant, a wine | Female | Plant |
| Jacinthe | Hyacinth.
| Female | |
| Jack | after the Georgetown University mascot, Jack the Bulldog | Male | English |
| Jack | From John - God's gracious gift | Male | English |
| Jade | Jewel. Courageous and adoring.
| Female | Spanish |
| Jady | The Gemstone Jade; The Color Green. | Unisex | English |
| Jadzia | Princess | Unisex | Polish |