The Jazz Butcher was the alias of British singer/songwriter Pat Fish (20 December 1957 – 5 October 2021). It also served as the name of the band, though adjuncts were frequently used to distinguish between Fish’s persona and band itself (The Jazz Butcher Conspiracy or JBC, The Jazz Butcher Group, The Jazz Butcher and his Sikkorskis from Hell, The Jazz Butcher Quartet and The Jazz Butcher Quintet.)

The line-up of the band changed frequently throughout its history, with Pat Fish being the only constant. Notable members included band co-founder Max Eider (Peter Millson), David J.(Haskins), Owen P. Jones, Rolo McGinty, Alice Thompson, Paul Mulreany, Alex Green, Richard Formby, Kizzy O’Callaghan, Curtis E. Johnson and Peter Crouch.