The playoffs concluded on May 19 with the Edmonton Oilers defeating the four-time defending champion New York Islanders 5–2 to win the Stanley Cup Finals four games to one, the franchise's first Stanley Cup.
Home ice advantage in the conference finals and the Stanley Cup Finals was modified this season so it would be awarded to the team that had the better regular season record, like the first two rounds of the playoffs, instead of having it rotate by division and conference, respectively.
[1] This resulted in home-ice advantage for the Adams and Smythe division champions in the conference finals and resulted in home-ice advantage for the Wales Conference champion in the Stanley Cup finals.
Montreal won the most recent meeting in seven games in the 1979 Stanley Cup Semifinals.
The Islanders won four of the previous five meetings, including in each of the past three seasons.
Chicago won both previous meetings over the past two seasons, including last year's Norris Division Finals in five games.
This was a rematch of last year's Smythe Division Semifinals, in which Edmonton won in a three-game sweep.
St. Louis won three of the previous four meetings, including their most recent in the 1972 Stanley Cup Quarterfinals in seven games.
This was a rematch of last year's Smythe Division Finals, in which Edmonton won in five games.
Lanny McDonald scored the overtime winner for Calgary in Game 6.