Harry McCoy (December 10, 1893 – September 1, 1937) was an American film actor and screenwriter.

McCoy's early experience in entertainment was in vaudeville, where he played a piano and sang.

He stayed with the post-Sennett Keystone until August 1917, then made a brief return to vaudeville with the Pantages circuit.

In 1920 he played opposite Sid Smith as one of CBC/Federated's "Hall-room Boys" before being replaced by Jimmie Adams.

He sued Sennett over some music he wrote in 1930, but the dispute apparently was settled before it came to court.