Don Grusin is an American jazz keyboardist, composer, and record producer. He is the younger brother of Dave Grusin.
Don Grusin grew up in Denver, Colorado. His father, a native of Latvia, was a classical violinist. His brother, Dave Grusin, is a pianist, record producer, and co-founder of GRP Records.
Grusin graduated from the University of Colorado Boulder with a bachelor's degree in sociology and a master's degree in economics. In the early 1970s, he was an economics professor in Guadalajara, Mexico. Soon after, he taught economics at Foothill College in California.
Grusin performed in Bogota, Colombia, as a member of Azteca, a Latin jazz fusion band led by Pete Escovedo that included Escovedo's daughter, drummer Sheila E. The trip sparked a lifelong interest in Latin music. In 1975, Quincy Jones invited him to tour with his band, and Grusin was persuaded to leave teaching for a career in music. He worked as a studio musician on albums by Randy Crawford, Billy Eckstine, Joe Pass, and the Pointer Sisters. He formed the fusion group Friendship with Lee Ritenour, Ernie Watts, and Alex Acuña and recorded one album, then released solo albums in 1981 and 1983. In 1985, he produced the album Musician for Ernie Watts, and it won a Grammy Award. Grusin's live album The Hang (Sovereign Artists, 2004) received a Grammy Award nomination, and he won Grammy Awards for his work on two albums by the Paul Winter Consort. He won an Echo Award for the album Quality Time, recorded with Peter Fessler.