David Behrman (born August 16, 1937 in Salzburg, Austria) is an American composer and a pioneer of computer music. In the early 1960s he was the producer of Columbia Records' Music of Our Time series, which included the first recording of Terry Riley's In C. In 1966 Behrman co-founded Sonic Arts Union with fellow composers Robert Ashley, Alvin Lucier and Gordon Mumma. He wrote the music for Merce Cunningham's dances Walkaround Time (1968), Rebus (1975), Pictures (1984) and Eyespace 40 (2007).
Behrman attended the Phillips Academy in Andover, Massachusetts, where his classmates included Carl Andre, Hollis Frampton and Frank Stella. There he also developed a lifelong friendship with composer and pianist Frederic Rzewski. While attending summer camp at Indian Hill in 1953 he was taught modern music by Wallingford Riegger. He studied music at Harvard from 1955 to 1959, where he formed a lifelong friendship with Christian Wolff (composer) and where he continued his friendship with Frederic Rzewski. He attended the summer school at Darmstadt in 1959, where he met La Monte Young and Nam June Paik.
He has been a member of the Avery Graduate Arts Program faculty at Bard College since 1998. He was co-director of the Center for Contemporary Music at Mills College in 1975-1980, and has taught also at CalArts, Rutgers, and the Technical University in Berlin.
Behrman is known as a minimalist composer. His music has often involved interactions between live performers and computers, usually with the computer generating sounds triggered by some aspect of the live performance, usually certain pitches, but sometimes other aspects of the live sound, such as volume in QRSL (as recorded by Maggi Payne on The Extended Flute (CRI807). Many of his significant works, such as On the Other Ocean, Interspecies Small Talk, and others have been released on Lovely Music.