Oliver Lake (born September 14, 1942) is an American jazz saxophonist, flutist, composer, poet, and visual artist. He is known mainly for alto saxophone, but he also performs on soprano and flute. During the 1960s, Lake worked with the Black Artists Group in St. Louis. In 1977, he founded the World Saxophone Quartet with David Murray, Julius Hemphill, and Hamiet Bluiett. He worked in the group Trio 3 with Reggie Workman and Andrew Cyrille. He has appeared on more than 80 albums as a bandleader, co-leader, and side musician. He is the father of drummer Gene Lake. Lake has been a resident of Montclair, New Jersey.