Harold Arthur Trosky Sr., born Harold Arthur Trojovsky (November 11, 1912 – June 18, 1979), was an American professional baseball player. He played in Major League Baseball as a first baseman for the Cleveland Indians (1933–1941) and the Chicago White Sox (1944, 1946). Trosky, who had a career batting average of .302, is notable for being the 1936 American League RBI champion as a member of the Cleveland Indians. He was inducted into the Cleveland Indians Hall of Fame in 1951.