Edwin Hawley Dyer (October 11, 1899 – April 20, 1964) was an American left-handed pitcher, manager and farm system official in Major League Baseball for the St. Louis Cardinals from 1922–1944 and 1946–1950. In 1946, Dyer's first season at the helm of the Cardinals, the Redbirds defeated the Brooklyn Dodgers in a thrilling National League season that featured the first postseason playoff in baseball history, then bested the favored Boston Red Sox in a seven-game World Series. He was the second rookie manager to win a World Series and first since Bucky Harris in 1924.