| 1940 MLB season | |
|---|---|
| League | American League (AL) National League (NL) |
| Sport | Baseball |
| Duration | Regular season:
|
| Number of games | 154 |
| Number of teams | 16 (8 per league) |
| Regular season | |
| Season MVP | AL: Hank Greenberg (DET) NL: Frank McCormick (CIN) |
| AL champions | Detroit Tigers |
| AL runners-up | Cleveland Indians |
| NL champions | Cincinnati Reds |
| NL runners-up | Brooklyn Dodgers |
| World Series | |
| Champions | Cincinnati Reds |
| Runners-up | Detroit Tigers |
The 1940 major league baseball season began on April 16, 1940. The regular season ended on September 29, with the Cincinnati Reds and Detroit Tigers as the regular season champions of the National League and American League, respectively. The postseason began with Game 1 of the 37th World Series on October 2 and ended with Game 7 on October 8. The Reds defeated the Tigers, four games to three.
The eighth Major League Baseball All-Star Game was played on July 9, hosted by the St. Louis Browns and St. Louis Cardinals at Sportsman's Park in St. Louis, Missouri, with the National League winning, 4–0.