- Jabari
- Jacek
- Jacinto
- Jacobo
- Jacques
- Jaden
- Jago
- Jakob
- Jamal
- Jamil
- Jan
- Janek
- Jannik
- Jannis
- Janos
- Januarius
- Jared
- Jarno
- Jaromir
- Jaspal
- Jasper
- Javier
- Jay
- Jeff
- Jeffrey
- Jello
- Jendrich
- Jenning
- Jens
- Jeremiah
- Jeremias
- Jerk
- Jesko
- Jesus
- Jim
- Joachim
- Jochen
- Joel
- Joey
- Johann
- Johannes
- John
- Jonah
- Jonas
- Jonathan
- Josef
- Jost
- Josua
- José
- Juan
- Julian
- Julius
- Justin
- Justus
- Jörg
- Jörn
- Jürgen