- Jack Summer -- Jack Teagarden & His All Stars
- Jack Teagarden & His Band -- Jack The Crack
- Jack the Dog -- Jack Toney
- Jack Too Jack -- Jack Trombey
- Jack Trott -- Jack Vanausdell
- Jack Vees -- Jack Wallace
- Jack Walrath -- Jack Whiting
- Jack Whitling -- Jack With Killer
- Jack Wolf -- Jack Yates
- Jack Yellen -- Jackal
- Jackal -- Jackay Nelson
- jackbliss -- Jackeline Castellanos & Los Tropicales
- Jackeline Rago -- Jacken