William Barron, Jr. (March 27, 1927 – September 21, 1989) was an American jazz tenor and soprano saxophonist. Barron was born in Philadelphia, Pennsylvania. He first appeared on a Cecil Taylor recording in 1959, and he later recorded extensively with Philly Joe Jones and co-led a post-bop quartet with Ted Curson. His younger brother, pianist Kenny Barron, appeared on all of the sessions that the elder Barron led. Other musicians he recorded with included Charles Mingus and . Barron died in Middletown, Connecticut.