| Tournament details | |
|---|---|
| Dates | October 3–17, 1978[1] |
| Teams | 4 |
| Final positions | |
| Champions | New York Yankees (22nd title) |
| Runner-up | Los Angeles Dodgers (16th World Series appearance) |
| Tournament statistics | |
| MVP | Bucky Dent (NYY) |
The 1978 Major League Baseball postseason was the playoff tournament of Major League Baseball for the 1978 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.
This was the second of two consecutive postseasons to feature the same teams – the New York Yankees, Kansas City Royals, Philadelphia Phillies, and Los Angeles Dodgers. The former three teams all returned for the 1980 postseason, and all four returned in the expanded 1981 postseason as well as the 2024 postseason.
The playoffs began on October 3, 1978, and concluded on October 17, 1978, with the Yankees again defeating the Dodgers in six games in the 1978 World Series. The Yankees repeated as World Series champions.