| Tournament details | |
|---|---|
| Dates | October 6–21, 1973[1] |
| Teams | 4 |
| Final positions | |
| Champions | Oakland Athletics (7th title) |
| Runner-up | New York Mets (2nd World Series appearance) |
| Tournament statistics | |
| MVP | Reggie Jackson (OAK) |
The 1973 Major League Baseball postseason was the playoff tournament of Major League Baseball for the 1973 season. The winners of each division advance to the postseason and face each other in a League Championship Series to determine the pennant winners that face each other in the World Series.
In the American League, the Baltimore Orioles returned to the postseason for the fourth time in the past five seasons, and the Oakland Athletics made their third straight appearance. In the National League, the Cincinnati Reds returned for the third time in the past four seasons, and the New York Mets returned for the second time in the past five seasons.
The playoffs began on October 6, 1973, and concluded on October 21, 1973, with the Athletics defeating the Mets in seven games in the 1973 World Series. The Athletics repeated as World Series champions.