| Name | Meaning | Gender | Origin |
|---|
| Hobbit | | Male | Hebrew |
| Honey | Term of endearment. Sweet syrup produced by bees | Female | Word |
| Hope | Hope
| Female | |
| Hope | Hope
| Female | |
| Houdini | | Male | Hebrew |
| Hugo | Intelligent
| Male | Latinized |
| Igor | Scottish variation of Welsh Ifor, lord or English form of Scandinavian Ifar, yew | Male | Russian |
| Ike | Hebrew, laughter | Male | English |
| Imp | | Unisex | Hebrew |
| Inca | | Unisex | Hebrew |
| Itty | | Unisex | Hebrew |
| Itty Bitty | | Unisex | Hebrew |
| Jazzy | Modern variant of Jasmine: combination of Jocelyn and the musical term jazz.
| Female | |
| Jelly Bean | | Unisex | Hebrew |
| Jemima | dove | Female | Hebrew |
| Jenna | white shadow, white wave | Female | English |
| Jiggs | | Unisex | Hebrew |
| Jiminy | | Unisex | Hebrew |
| Jingle | | Unisex | Hebrew |
| Jitterbug | | Male | Hebrew |
| Jolie | French for pretty | Female | |
| Jumper | | Male | Hebrew |
| Junior | Youthful person. Used to distinguish son from father where they have the same name | Male | Latin |
| Kane | tribute, warrior; the doubly-accomplished, golden; man, the eastern sky; beautiful | Male | Celtic |
| Karina | Italian, dear little one | Female | Scandinavian |