William Lewis "Buck" Clarke (October 2, 1933 – October 11, 1988) was an American jazz percussionist who played with Freddie Hubbard, Herbie Hancock, Les McCann, Russ Freeman, Gerald Albright, Jimmy Smith and others. He also played at the Montreux Jazz Festival in 1968. Clarke's many musical styles include soul, funk and contemporary jazz, with an Afrocentric perspective.