Clement John Koshorek (June 20, 1925 – September 8, 1991) was an American professional baseball player who had a 14-season career, mostly in the minor leagues. The infielder appeared in 99 games in Major League Baseball for the 1952–1953 Pittsburgh Pirates. Born in Royal Oak, Michigan, Koshorek threw and batted right-handed. He stood 5 feet 4 inches (1.63 m) tall and weighed 165 pounds (75 kg).