John Andrew Beazley (May 25, 1918 – April 21, 1990) was a right-handed pitcher in Major League Baseball who played for the St. Louis Cardinals and Boston Braves. As a rookie in 1942, Beazley went 21–6 with a 2.13 ERA for the Cardinals, as his 21 wins and ERA ranked him second in the National League behind teammate Mort Cooper (22 and 1.78). Beazley completed his feat pitching two complete-game wins in the team's World Series victory over the New York Yankees in five games, allowing three runs in Game Two and two runs in Game Five for a combined 2.50 ERA.