- India.Arie – India Arie Simpson
- J. Geils – Jerome Geils
- Ja Rule – Jeffery Atkins
- Jackson Browne – Clyde Jackson Browne
- Janis Ian – Janis Eddy Fink
- Jay-Z – Shawn Corey Carter
- Jazz (Dru Hill) – Larry Anthony JR.
- Jazzy Jeff – Jeffrey Townes
- JBJ (Crazy Town) – James Bradley JR.
- Jerry Reed – Jerry Hubbard
- Jessi Colter – Miriam Johnson
- Jewel – Jewel Kilcher
- Jimi Hendrix – Johnny Allen Hendrix
- Jimmy Cliff – James Chambers
- Jimmy Dean – Seth Ward
- Joan Jett – Joan Larkin
- Joe Cocker – John Robert Cocker
- Joe Strummer (The Clash) – John Graham Mellor
- Joey Dee – Joseph DiNicola
- Joey Fatone – Joseph Anthony Fatone Jr.
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