Prince of Wales Conference (A1) Hartford Whalers vs. (A4) Quebec Nordiques This was the second playoff series meeting between these two teams. Harford won the only previous meeting in a three-game sweep in the
last year's Adams Division Semifinals. This was the last series that the Nordiques/Avalanche franchise won in Quebec City, the franchise did not win another playoff series until
1996 when they were the
Colorado Avalanche.
(A2) Montreal Canadiens vs. (A3) Boston Bruins This was the 22nd playoff series between these two teams. Montreal lead 19–2 in previous playoff series. This was the fourth straight year meeting in the Division Semifinals. Montreal won
last year's Adams Division Semifinals in a three-game sweep.
(P1) Philadelphia Flyers vs. (P4) New York Rangers This was the eighth playoff series meeting between these two teams. New York won four of the previous seven meetings, including
last year's Patrick Division Semifinals in a 3–2 series upset.
(P2) Washington Capitals vs. (P3) New York Islanders This was the fifth playoff series meeting between these two teams. New York won three of the previous four series all in the past four years. Washington won
last year's Patrick Division Semifinals in a three-game sweep. Game seven of this series went four overtimes, and is known as the
Easter Epic. It was the only one this year to go beyond one OT period.
Clarence Campbell Conference (N1) St. Louis Blues vs. (N4) Toronto Maple Leafs This was the second playoff series meeting between these two teams. This was a rematch of
last year's Norris Division Finals, in which St. Louis won in seven games.
(N2) Detroit Red Wings vs. (N3) Chicago Blackhawks This was the 11th playoff series between these two teams. Chicago lead 6–4 in previous playoff meetings. Chicago won the most recent meeting in a three-game sweep in the
1985 Norris Division Semifinals.
(S1) Edmonton Oilers vs. (S4) Los Angeles Kings This was the third playoff series meeting between these two teams. Both teams split their previous two meetings. Edmonton won in a three-game sweep in their most recent meeting in the
1985 Smythe Division Semifinals.
(S2) Calgary Flames vs. (S3) Winnipeg Jets This was the third playoff series meeting between these two teams. Both teams split their previous two meetings over the prior two years. Calgary won
last year's Smythe Division Semifinals in a three-game sweep. This was the last series that the Jets/Coyotes franchise won in Winnipeg; the franchise did not win another playoff series until the
2012 Western Conference Quarterfinal while based in
Arizona. This was also the last time a Winnipeg-based NHL team won a playoff series until
2018. ==Division finals==