William John Cunningham (born June 3, 1943) is an American former professional basketball player and coach, who was nicknamed the Kangaroo Kid for his leaping and record-setting rebounding abilities. He spent a total of 17 seasons with the NBA's Philadelphia 76ers (nine as player, eight as coach), and two seasons as a player with the Carolina Cougars of the ABA.

One of basketball's all-time greats, Cunningham