Calvin Leon Natt (born January 8, 1957) is an American retired professional basketball player. A 6'6" (1.98 m) forward, Natt played at Northeast Louisiana University under coach . After college, he played 11 NBA seasons (1979–1990), spending time with the New Jersey Nets, Portland Trail Blazers, Denver Nuggets, San Antonio Spurs, and Indiana Pacers. He represented the Nuggets in the 1985 NBA All-Star Game, and retired with 10,291 career points. He is the older brother of former NBA player Kenny Natt. Natt's nickname was "Pit Bull".