| Name | Meaning | Gender | Origin |
|---|
| Isela | | Unisex | Hebrew |
| Jack | God is gracious | Male | Hebrew |
| Jacques | Supplanter | Male | Hebrew |
| Jafar | Stream | Male | Arabic |
| Jal | Wanderer | Male | English |
| Jared | To descend, descendant | Male | Hebrew |
| Jarek | Spring | Male | Polish |
| Jaroslav | Famous for his spirited character | Male | Slavonic |
| Jarred | Descendant | Male | Hebrew |
| Jarrod | Descendant | Male | Hebrew |
| Jerad | Descendant | Male | Hebrew |
| Jonah | Dove | Male | Hebrew |
| Jordan | Descend | Male | Hebrew |
| Jubal | Blast of a horn | Male | Hebrew |
| Jupiter | Father god | Unisex | Latin |
| Kaelin | Variant Of Kay And Kayla. Keeper Of The Keys: Pure. | Unisex | English |
| Kai | Rejoice | Male | Finnish |
| Kalen | Slender | Male | Gaelic |
| Kay | Pure | Male | Greek |
| Kelby | Child's town | Male | English |
| Kell | Farm By The Spring | Male | English |
| Kelsey | Cenel's land | Unisex | English |
| Kelton | Town of the keels | Male | English |
| Kelvin | From the River Clyde | Male | English |
| Kemp | Battler, fighter, warrior | Male | English |
| Ken | Born of fire | Male | Gaelic |
| Kendell | Royal Valley. Surname Referring To Kent In England. | Male | English |
| Kenn | Abbreviation Of Names Beginning With Ken- | Male | English |
| Killian | War | Male | Gaelic |
| Kinsey | Royal victory | Male | English |