John Zorn (born September 2, 1953) is an American avant-garde composer, arranger, producer, saxophonist and multi-instrumentalist with hundreds of album credits as performer, composer, and producer across a variety of genres including jazz, rock, hardcore, classical, surf, metal, klezmer, soundtrack, ambient and improvised music. He incorporates diverse styles in his compositions which he identifies as avant-garde or experimental. Zorn was described by Down Beat as "one of our most important composers".

Zorn established himself within the New York City downtown music movement in the mid-1970s performing with musicians across the sonic spectrum and developing experimental methods of composing new music. After releasing albums on several independent US and European labels, Zorn signed with Elektra Nonesuch and received wide acclaim with the release of The Big Gundown, an album reworking the compositions of Ennio Morricone. He attracted further attention worldwide with the release of Spillane in 1987, and Naked City in 1989. After spending almost a decade travelling between Japan and the US he returned to New York as a permanent base and established his own record label Tzadik in the mid-1990s.