Clyde Mitchell Shoun (March 20, 1912 – March 20, 1968) was an American professional baseball player. A left-handed pitcher, he was born in Mountain City, Tennessee, and known as "Hardrock", due to his fastball. He was the younger brother of professional basketball player Slim Shoun. Shoun was 23 years old when he broke into the big leagues on August 7, 1935, with the Chicago Cubs. He played for the Cubs, Cincinnati Reds, St. Louis Cardinals, Boston Braves, and Chicago White Sox. Shoun led the major leagues in games pitched with 54 in 1940 when he was a member of the Cardinals.