- Judy Valentine -- Jukaiku Kyouso Orchestra
- Juke -- Julia Boynton
- Julia Bramwell -- Julia Walker Jewell
- Julia Walters -- Julián Rubinos
- Julian Russell -- Julie Danao-Salkin
- Julie Daniels -- Julie Ruffino
- Julie Rugaard -- Juliette Lewis
- Juliette McDonald -- Julius
- Julius -- Jumpel
- Jumper -- June Miles-Kingston
- June Millington -- Junior Banton
- Junior Barbosa -- Junior Willison
- Junior X -- Jupiter Crash
- Jupiter Crew -- Jus J
- Jus Jack -- Just Over Yonder
- Just Passin' Thru -- Justin Ellis
- Justin Enco -- Justin Rothberg
- Justin Rubin -- Jutta Mann
- Jutta-Renate Ihloff -- Jzanell