Harold Arthur Trosky, Sr., born Harold Arthur Trojovsky (November 11, 1912 - June 18, 1979), was an American first baseman in Major League Baseball for the Cleveland Indians (1933-1941) and the Chicago White Sox (1944, 1946). Trosky was born in Norway, Iowa. He batted left-handed, and threw right-handed.

In 5161 career at bats, Trosky had a career .302 batting average, with a career high of .343 in 1936. He hit 228 career home runs and had 1012 RBIs. He had 1561 career hits. His 216 HRs with the Indians puts him 2nd on the team's all-time list, behind Earl Averill. His best season may have been 1936, achieving 42 home runs, 162 RBIs, a .644 slugging percentage). Read the biogaphy of Hal Trosky by William Johnson. You can find it at http://bioproj.sabr.org/bioproj.cfm?a=v&v=l&bid=755&pid=14358.