| Name | Meaning | Gender | Origin |
|---|
| Jeffrey | pledge of peace | Male | Spelling |
| Jen | White, Fair | Unisex | English |
| Jennifer | white shadow, white wave | Female | Cornish |
| Jenny | Diminutive of Jane and Jennifer.
| Female | English |
| Jenny | Diminutive of Jane and Jennifer.
| Female | English |
| Jeremy | God will uplift, appointed by God | Male | English |
| Jerk | Ever Powerful Ruler | Unisex | Swedish |
| Jerome | sacred name | Male | Greek |
| Jerry | after Jerry Garcia, The Grateful Dead | Male | English |
| Jesse | wealthy | Male | Hebrew |
| Jessica | God's grace | Female | Hebrew |
| Jessie | wealthy | Female | Anglicized |
| Jessy | God's Gracious Gift | Unisex | Hebrew |
| Jethro | excellence | Male | Hebrew |
| Jim | supplanter | Male | English |
| Jimmy | supplanter | Male | English |
| Jodie | From Judith - Admired and praised | Unisex | |
| Joe | Abbreviation of Joseph.
| Male | English |
| Joe | Abbreviation of Joseph.
| Male | English |
| John | God is merciful | Male | Hebrew |
| Johnny | the Lord is gracious | Male | English |
| Johnson | Son of John
| Male | English |
| Jon | God is gracious; or gift of Jehovah | Male | English |
| Jonathan | God gives | Male | Hebrew |
| Jones | God Will Bring | Male | Welsh |