William John Cunningham ( born June 3, 1943 in Brooklyn, New York ) is a retired American professional basketball player and coach. Between 1965 and 1976 he played in the NBA for the crew of the Philadelphia 76ers, and in the meantime for the Carolina Cougars in the ABA. Cunningham is 2,01 m tall and played on the position of power forward. 1966 Cunningham was appointed to the All- Rookie team and the NBA was in fact part of the 1967 championship team the Sixers that ended the supremacy of the Boston Celtics. Cunningham was appointed during his career, three-time All- NBA First Team ( 1969-1971 ). In addition, he was elected four times in an All-Star team.
After his playing career, he became coach of the 76ers from 1977 to 1985. During the season 82/83 he won with a team led by Moses Malone and Julius Erving, the second championship in the club's history. Since May 6, 1986 he has been a member of the Naismith Memorial Basketball Hall of Fame.