| Name | Meaning | Gender | Origin |
|---|
| Jenna | white shadow, white wave | Female | English |
| Jerry | after Jerry Garcia, The Grateful Dead | Male | English |
| Jersey | From A Section Of England | Male | English |
| Jeter | after Derek Sanderson Jeter, Yankee's shortstop | Male | |
| Jethro | excellence | Male | Hebrew |
| Jett | Jet Black Gem | Male | English |
| Jewel | Jewel
| Female | Word |
| Jewels | Jewel | Unisex | English |
| Jill | youthful | Female | English |
| Jinx | Charm, Spell | Female | Latin |
| Jo | Variation of Johanna, God is gracious | Female | English |
| Jo Jo | | Unisex | Hebrew |
| Johnnie | Modern feminine of John and Jon.
| Male | English |
| Jojo | | Female | Hebrew |
| Jolie | French for pretty | Female | |
| Jonathan | God gives | Male | Hebrew |
| Jones | God Will Bring | Male | Welsh |
| Josh | God Saves | Unisex | English |
| Josie | From Josephine - She shall add. | Female | English |
| Julia | Youthful
| Female | Latin |
| Julie | Youthful: Jove's child. A feminine of Julian.
| Female | |
| Juliette | youthful | Female | |
| Julius | after Julius Caesar | Male | Latin |
| June | 6Th Month | Female | English |
| Junebug | | Female | Hebrew |