Warren Wesley Buck III (born 16 February 1946) is an American physicist. He is credited with establishing the physics PhD program at Hampton University, a historically Black college in Hampton, Virginia, which was also the campus's first PhD program in any subject. Buck was also the first chancellor of University of Washington-Bothell and oversaw the university's transition to a four-year institution. His research focuses on nuclear and subatomic particles, including studies of the interactions between particles and anti-particles and the nature of mesons and the quark model.