Merritt Patrick "Sugar" Cain (April 5, 1907 – April 3, 1975) was an American professional baseball pitcher who worked in 178 games in the major leagues as a member of the Philadelphia Athletics (1932–1935), St. Louis Browns (1935–1936) and Chicago White Sox (1936–1938). The native of Macon, Georgia, batted left-handed and threw right-handed, stood 5 feet 11 inches (1.80 m) tall and weighed 190 pounds (86 kg).