Delmer William Harris (June 18, 1937) is an American basketball coach who is currently the vice president of the Texas Legends, the NBA D-League affiliate of the Dallas Mavericks. He served as a head coach for the NBA's Houston Rockets, Milwaukee Bucks, and Los Angeles Lakers, as well as the Legends. He was also an assistant coach for the National Basketball Association's New Jersey Nets, Chicago Bulls, Dallas Mavericks, Milwaukee Bucks, and the Houston Rockets.