| Name | Meaning | Gender | Origin |
|---|
| Jamar | Uncertain, perhaps beauty | Male | English |
| Jamel | Handsome | Male | Arabic |
| James | Supplanter | Male | Hebrew |
| Jameson | Supplanter | Male | Hebrew |
| Jared | To descend, descendant | Male | Hebrew |
| Jason | Healer | Male | Greek |
| Jasper | Treasurer | Male | Persian |
| Jay | Jay bird | Male | English |
| Jesse | Gift | Male | Hebrew |
| Jonah | Dove | Male | Hebrew |
| Jonas | Dove | Male | Hebrew |
| Joshua | God rescues | Male | Hebrew |
| Judah | Praise | Male | Hebrew |
| Jude | Praise | Male | Hebrew |
| Julian | Down-bearded youth | Male | Latin |
| Julius | Down-bearded youth | Male | Latin |
| Jun | Truthful | Female | Chinese |
| Justin | Righteous, just, fair | Male | Latin |
| Kale | Uncertain, perhaps slender | Male | Gaelic |
| Kayden | "Variation Of Kadin, Friend, Companion" | Male | English |
| Keane | Descendant of Cathán | Male | Gaelic |
| Keefe | Handsome | Male | English |
| Keefer | Barrelmaker Variation Of Cooper. Surname. | Male | English |
| Keeley | Beautiful | Female | Gaelic |
| Keely | Beautiful | Female | Gaelic |
| Keene | Ancient. | Male | English |
| Keiran | Little dark one | Male | Gaelic |
| Ken | Born of fire | Male | Gaelic |
| Kenna | Handsome | Female | Celtic |
| Kenneth | Born of fire | Male | Gaelic |