John Warren "Jack" Marin (born October 12 1944, in Sharon, Pennsylvania) is a retired American professional Basketball player. A 201 cm (6-foot, 7-inch) guard/forward from Duke University, Marin was named to the 1967 NBA and spent 11 seasons in the NBA (1966-1977), playing for the Baltimore Bullets, Houston Rockets, Buffalo Braves and Chicago Bulls. The left-handed Marin was a two-time NBA and scored 12,541 points in his career. He is perhaps most remembered for being traded to the Houston Rockets (along with future considerations) for Elvin Hayes.