| Name | Meaning | Gender | Origin |
|---|
| Jacob | The supplanter, held by the heel | Male | Hebrew |
| Jago | A character in a Victorian book who battled against the odds | Male | Spanish |
| Jaka | young man | Male | Indonesian |
| Jake | From Jacob - To fill the place of another | Male | Hebrew |
| James | From Jacob - To fill the place of another, supplanter. | Male | English |
| Jarvis | driver, a conqueror | Male | English |
| Jason | the Lord is salvation | Male | Hebrew |
| Jasper | Black stone
| Male | Persian |
| Jasper | Black stone
| Male | Persian |
| Jasper | Black stone
| Male | Persian |
| Jay | jaybird | Male | Latin |
| Jean | God is gracious | Male | |
| Jeffery | Peaceful. Variant of Geoffrey in use since medieval times.
| Male | |
| Jerry | after Jerry Garcia, The Grateful Dead | Male | English |
| Jet | A deep black colour. Aircraft engine that propels an aircraft forward by expelling exhaust gases toward the rear. | Male | Mineral |
| Jett | Jet Black Gem | Male | English |
| Jim | supplanter | Male | English |
| Jimmy | supplanter | Male | English |
| Joe | Abbreviation of Joseph.
| Male | English |
| Joe | Abbreviation of Joseph.
| Male | English |
| Joey | Abbreviation of Joseph.
| Male | |
| Joey | Abbreviation of Joseph.
| Male | |
| John | God is merciful | Male | Hebrew |
| Johnnie | Modern feminine of John and Jon.
| Male | English |
| Johnny | the Lord is gracious | Male | English |