| Name | Meaning | Gender | Origin |
|---|
| Jameson | son of James | Male | English |
| Jamie | Feminine of James | Female | Scottish |
| Jane | gracious, merciful, God is gracious | Female | English |
| Jarrett | Irish variation of Gerard, spear strength | Male | English |
| Jasmin | A flower name from the older form Jessamine.
| Female | |
| Jasmine | Flower
| Female | Persian |
| Jason | the Lord is salvation | Male | Hebrew |
| Jasper | Black stone
| Male | Persian |
| Jasper | Black stone
| Male | Persian |
| Jasper | Black stone
| Male | Persian |
| Javier | Born in January
| Male | Spanish |
| Jax | God has been gracious: has shown favor. Based on John or Jacques.
| Male | Modern |
| Jay | jaybird | Male | Latin |
| Jayce | Moon | Male | English |
| Jayda | Green Gemstone | Unisex | English |
| Jayson | Healer. Alternate spelling of Jason.
| Male | |
| Jazmine | Jasmine | Unisex | English |
| Jefferson | son of Jeffrey | Male | English |
| Jeffery | Peaceful. Variant of Geoffrey in use since medieval times.
| Male | |
| Jeffrey | pledge of peace | Male | Spelling |
| Jemma | Italian, precious stone | Female | Spelling |
| Jenna | white shadow, white wave | Female | English |
| Jennifer | white shadow, white wave | Female | Cornish |
| Jenny | Diminutive of Jane and Jennifer.
| Female | English |
| Jenny | Diminutive of Jane and Jennifer.
| Female | English |