Pius Louis Schwert (November 22, 1892 – March 11, 1941) was an American politician and professional baseball player. He played for the New York Yankees of Major League Baseball and was a member of the United States House of Representatives from New York's 42nd congressional district. A member of the Democratic Party, Schwert was elected county clerk of Erie County in 1933 and reelected in 1936. He was elected to the House of Representatives in 1938 and reelected in 1940. Schwert died following a heart attack as he was giving a speech on March 11, 1941.