On this page you will find the NBA Playoff results for each season. You will see the result of every series during that particular season’s playoffs.
1978 NBA Playoff data
| Round | Winner (Seed) | Loser (Seed) | Length | Sweep |
| Eastern Conference First Round | New York Knicks (5) | Cleveland Cavaliers (4) | 2 Games | Sweep |
| Eastern Conference First Round | Washington Bullets (3) | Atlanta Hawks (6) | 2 Games | Sweep |
| Western Conference First Round | Milwaukee Bucks (6) | Phoenix Suns (3) | 2 Games | Sweep |
| Western Conference First Round | Seattle SuperSonics (4) | Los Angeles Lakers (5) | 3 Games | |
| Eastern Conference Semifinals | Philadelphia 76ers (1) | New York Knicks (5) | 4 Games | Sweep |
| Eastern Conference Semifinals | Washington Bullets (3) | San Antonio Spurs (2) | 6 Games | |
| Western Conference Semifinals | Denver Nuggets (2) | Milwaukee Bucks (6) | 7 Games | |
| Western Conference Semifinals | Seattle SuperSonics (4) | Portland Trail Blazers (1) | 6 Games | |
| Eastern Conference Finals | Washington Bullets (3) | Philadelphia 76ers (1) | 6 Games | |
| Western Conference Finals | Seattle SuperSonics (4) | Denver Nuggets (2) | 6 Games | |
| NBA Finals | Washington Bullets (3) | Seattle SuperSonics (4) | 7 Games |