Michael Joseph Cantwell (June 15, 1894 – January 5, 1953) was a Major League Baseball pitcher. Cantwell played for the New York Yankees in 1916 and the Philadelphia Phillies in 1919 and 1920. In 11 career games, he had a 1–6 record with a 4.61 ERA. He batted and threw left-handed.
Cantwell served in the United States Marines during World War I.
Cantwell was born in Washington, D.C., and died in Oteen, North Carolina.