Emil John "Dutch" Leonard (March 25, 1909 – April 17, 1983) was an American professional baseball player. He played in Major League Baseball (MLB) as a right-handed knuckleball pitcher for the Brooklyn Dodgers (1933–1936), Washington Senators (1938–1946), Philadelphia Phillies (1947–1948) and Chicago Cubs (1949–1953). Born in Auburn, Illinois, Leonard batted right-handed and was listed as 6 feet (1.8 m) tall and 175 pounds (79 kg).
