Harry S. Toy (1892 – September 9, 1955) was an American politician, prosecutor, and judge.

He served as Wayne County Prosecutor (1930–1935), Michigan Attorney General (1935), and a justice of the Michigan Supreme Court (1935–1937). Both as a prosecutor and as police commissioner, Toy subscribed to McCarthyism and sought to root out and destroy communism, which Toy blamed for labor activism and various societal ills.[1] In November 1936, Toy, a Republican, was defeated for reelection to the Michigan Supreme Court by Democrat Bert D. Chandler, by a vote of 862,147 to 755,227.[2] From 1947 to 1950, he was the police commissioner of Detroit.[3] He planned to run for Governor of Michigan,[3] but died of a heart attack at age 63 in Detroit.