| Name | Meaning | Gender | Origin |
|---|
| Jason | the Lord is salvation | Male | Hebrew |
| Javier | Born in January
| Male | Spanish |
| Jay | jaybird | Male | Latin |
| Jean | God is gracious | Male | |
| Jeff | pledge of peace | Male | English |
| Jeffery | Peaceful. Variant of Geoffrey in use since medieval times.
| Male | |
| Jeffrey | pledge of peace | Male | Spelling |
| Jeremy | God will uplift, appointed by God | Male | English |
| Jerome | sacred name | Male | Greek |
| Jerry | after Jerry Garcia, The Grateful Dead | Male | English |
| Jesse | wealthy | Male | Hebrew |
| Jim | supplanter | Male | English |
| Jimmy | supplanter | Male | English |
| Joe | Abbreviation of Joseph.
| Male | English |
| Joe | Abbreviation of Joseph.
| Male | English |
| Joel | God is willing, Jehova is the Lord | Male | Hebrew |
| John | God is merciful | Male | Hebrew |
| Johnnie | Modern feminine of John and Jon.
| Male | English |
| Johnny | the Lord is gracious | Male | English |
| Jon | God is gracious; or gift of Jehovah | Male | English |
| Jonathan | God gives | Male | Hebrew |
| Jordan | The descending river, to flow | Male | Hebrew |
| Jorge | Spanish form of George farmer
| Male | Spanish |
| Jose | Jehovah increases | Male | Spanish |
| Joseph | God will increase | Male | Hebrew |