Robert David "Dave" Grusin (born June 26, 1934) is an American composer, arranger and pianist. Grusin has composed many scores for feature films and television, and has won numerous awards for his soundtrack and record work, including an Academy Award and 12 Grammys. He has had a prolific recording career as an artist, arranger, producer and executive producer.

Born in Littleton, Colorado, he studied music at the University of Colorado at Boulder and was awarded his bachelor's degree in 1956. He produced his first single, "Subways are for Sleeping", in 1962 and his first film score was for Divorce American Style (1967). Other scores followed including Winning (1969), The Friends of Eddie Coyle (1973), The Midnight Man (1974) and Three Days of the Condor in 1975.