- J -- J. Charles and the Trainrobbers
- J-Chase -- J. Garrett
- J. Gatsbe -- J-Large
- J. Laroi -- J. Notiq
- J-Noxx -- J. Ryan Garber
- J & S -- J-Ville Hustlas
- J. Vincent -- Jabba
- Jabba James -- Jack Blackton
- Jack Blades -- Jack Gilmore
- Jack Gilord -- Jack Marchment
- Jack Margolis & Jere Alan Brien -- Jack Schechtman
- Jack Schell -- Jacke Paris
- Jacked -- jacke'em smack'em