John Lenwood McLean (May 17, 1931 – March 31, 2006) was an American jazz alto saxophonist, composer, bandleader, and educator, and is one of the few musicians to be elected to the DownBeat Hall of Fame in the year of their death.

McLean was born in New York City. His father, John Sr., played guitar in Tiny Bradshaw‘s orchestra. After his father’s death in 1939, Jackie’s musical education was continued by his godfather, his record-store-owning stepfather, and several noted teachers. He also received informal tutoring from neighbors Thelonious Monk, Bud Powell, and Charlie Parker. During high school McLean played in a band with Kenny Drew, Sonny Rollins, and Andy Kirk, Jr. (the saxophonist son of Andy Kirk).

Along with Rollins, McLean played on Miles Davis‘ Dig album, when he was 20 years old. As a young man he also recorded with Gene Ammons, Charles Mingus (for Pithecanthropus Erectus), George Wallington, and as a member of Art Blakey‘s Jazz Messengers. McLean joined Blakey after reportedly being punched by Mingus. Fearing for his life, McLean pulled out a knife and contemplated using it against Mingus in self-defense, but later stated that he was grateful that he had not stabbed the bassist.