William Earnest Green (February 28, 1925, Kansas City, Kansas - July 29, 1996, Los Angeles) was an American jazz multi-instrumentalist. Green learned to play alto saxophone at age ten and picked up clarinet when he was twelve; he eventually learned to play most varieties of saxophone, clarinet, and flute. He served in the military until 1946, then began working at a club called Small's in Kansas City. In 1947 he relocated to Los Angeles and enrolled at the Los Angeles Conservatory of Music and Arts, graduating in 1952; he remained on staff as an educator there until 1962. He also ran a music education studio on La Brea Avenue in Los Angeles for many years.