Elmer Nathan "Al" Corwin (December 3, 1926 – October 23, 2003) was an American professional baseball player, a right-handed pitcher who appeared in Major League Baseball between 1951 and 1955 for the New York Giants.

The Newburgh, New York, native stood 6 feet 1 inch (1.85 m) tall and weighed 170 pounds (77 kg).

He compiled a won–lost record of 18–10 and an earned run average of 3.98 in 2891⁄3 innings pitched, allowing 289 hits and 156 bases on balls, with 142 strikeouts and five saves.

In Game 5, in a mop-up relief role, he hurled 12⁄3 scoreless innings in a 13–1 victory by the eventual champion New York Yankees.

This biographical article relating to an American baseball pitcher born in the 1920s is a stub.