On this page you will find the Stanley Cup Playoff results for each season. You will see the result of every 7-game series during that particular season’s playoffs.
1991 Stanley Cup Playoff data
| Round | Winner (Seed) | Loser | Length | Sweep |
| Prelim | Boston Bruins (High) | Hartford Whalers | 6 games | |
| Prelim | Montreal Canadiens (High) | Buffalo Sabres | 6 games | |
| Prelim | Pittsburgh Penguins (High) | New Jersey Devils | 7 games | |
| Prelim | Washington Capitals (Low) | New York Rangers | 6 games | |
| Prelim | Minnesota North Stars (Low) | Chicago Blackhawks | 6 games | |
| Prelim | St. Louis Blues (High) | Detroit Red Wings | 7 games | |
| Prelim | Los Angeles Kings (High) | Vancouver Canucks | 6 games | |
| Prelim | Edmonton Oilers (Low) | Calgary Flames | 7 games | |
| Qtrs | Boston Bruins (High) | Montreal Canadiens | 7 games | |
| Qtrs | Pittsburgh Penguins (High) | Washington Capitals | 5 games | |
| Qtrs | Minnesota North Stars (Low) | St. Louis Blues | 6 games | |
| Qtrs | Edmonton Oilers (Low) | Los Angeles Kings | 6 games | |
| Semis | Pittsburgh Penguins (Low) | Boston Bruins | 6 games | |
| Semis | Minnesota North Stars (Low) | Edmonton Oilers | 5 games | |
| Finals | Pittsburgh Penguins (High) | Minnesota North Stars | 6 games |