Captain Beyond is an American rock supergroup formed in Los Angeles in 1971. Consisting of former Deep Purple singer Rod Evans, former Johnny Winter drummer Bobby Caldwell, former Iron Butterfly guitarist Larry Reinhardt and former Iron Butterfly bassist Lee Dorman, the band had an eclectic style bridging elements of hard rock, progressive rock and jazz fusion with space rock. They released three albums between 1972 and 1977.

The band was plagued from its inception with significant problems, including lawsuits involving Evans, Reinhardt and Dorman with their former bands, and a dispute over musical style with their record label, Capricorn Records. Although the band performed well together, relationships among the various band members were strained. In particular, singer Rod Evans left and rejoined the band several times beginning in 1971, and made his departure permanent in late 1973, after the release of the band's second album.