Soft Machine are an English rock band from Canterbury, Kent. The band were formed in 1966 by Mike Ratledge, Robert Wyatt, Kevin Ayers, Daevid Allen and Larry Nowlin. Soft Machine were central in the Canterbury scene; they became one of the first British psychedelic acts, and later helped pioneer progressive and jazz rock and are widely regarded as the first progressive rock band. Soft Machine's lineup has undergone many changes, and has included Andy Summers, Hugh Hopper, Elton Dean, John Marshall, Karl Jenkins, Roy Babbington and Allan Holdsworth. As of 2025, the current lineup consists of John Etheridge, Theo Travis, Fred Thelonious Baker and Asaf Sirkis. The band's name originates from William S. Burroughs's novel The Soft Machine.