1987 Stanley Cup playoffs

The 1987 Stanley Cup playoffs, the playoff tournament of the National Hockey League (NHL) began on April 8, after the conclusion of the 1986–87 NHL season. It concluded on May 31, with the Edmonton Oilers defeating the Philadelphia Flyers to win the Stanley Cup. In an attempt to reduce the number of first round upsets, the NHL expanded the Division Semifinals series from a best-of-five series to a best-of-seven series.

The 1987 playoffs marked the second consecutive year that all four former WHA teams made the playoffs in the same year. It would not happen again until 1999 by which time 3 of those teams had moved, the Quebec Nordiques to Denver, the Winnipeg Jets to Phoenix, and the Hartford Whalers to Raleigh. For the second time ever, the first time being 1978, all of the Original Six teams made the playoffs in the same season.

At the time the Philadelphia Flyers set an NHL playoff record by playing in 26 games during the playoffs. This record was equaled by four other teams (2004 Calgary Flames, 2014 Los Angeles Kings, 2015 Tampa Bay Lightning, and 2019 St. Louis Blues), this remained the most under the four-round, 16 team playoff format before the 2020 Dallas Stars broke the record during the expanded 2020 Stanley Cup playoffs under the expanded format.

Playoff seeds
The top four teams in each division qualified for the playoffs, as follows:

Adams Division

 * 1) Hartford Whalers, Adams Division champions – 93 points
 * 2) Montreal Canadiens – 92 points
 * 3) Boston Bruins – 85 points
 * 4) Quebec Nordiques – 72 points

Patrick Division

 * 1) Philadelphia Flyers, Patrick Division champions, Prince of Wales Conference regular season champions – 100 points
 * 2) Washington Capitals – 86 points
 * 3) New York Islanders – 82 points
 * 4) New York Rangers – 76 points

Norris Division

 * 1) St. Louis Blues, Norris Division champions – 79 points
 * 2) Detroit Red Wings – 78 points
 * 3) Chicago Blackhawks – 72 points
 * 4) Toronto Maple Leafs – 70 points

Smythe Division

 * 1) Edmonton Oilers, Smythe Division champions, Clarence Campbell Conference regular season champions, Presidents' Trophy winners – 106 points
 * 2) Calgary Flames – 95 points
 * 3) Winnipeg Jets – 88 points
 * 4) Los Angeles Kings – 70 points

Playoff bracket
In the division semifinals, the fourth seeded team in each division played against the division winner from their division. The other series matched the second and third place teams from the divisions. The two winning teams from each division's semifinals then met in the division finals. The two division winners of each conference then played in the conference finals. The two conference winners then advanced to the Stanley Cup Finals.

This was the first year that all rounds were competed in a best-of-seven series, after the division semifinals were expanded from a best-of-five format. Each series following a 2–2–1–1–1 format (scores in the bracket indicate the number of games won in each best-of-seven series). Home ice advantage was awarded to the team that had the better regular season record, and played at home for games one and two (and games five and seven, if necessary); the other team then played at home for games three and four (and game six, if necessary).

(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.

(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.

(A2) Montreal Canadiens vs. (A4) Quebec Nordiques
This was the fourth playoff series meeting between these two teams. Quebec won two of the previous three meetings, including their most recent meeting in the 1985 Adams Division Finals in seven games.

(P1) Philadelphia Flyers vs. (P3) New York Islanders
This was the fourth playoff series meeting between these two teams. Philadelphia won two of the previous three series, including their most recent in the 1985 Patrick Division Finals in five games.

(N2) Detroit Red Wings vs. (N4) Toronto Maple Leafs
This was the 21st playoff series between these two teams. Toronto led 11–9 in previous playoff series. They last met in the 1964 Stanley Cup Finals, in which Toronto won in seven games.

(S1) Edmonton Oilers vs. (S3) Winnipeg Jets
This was the fourth playoff series meeting between these two teams. Edmonton won all three previous meetings, including their most recent in the 1985 Smythe Division Finals in a four-game sweep.

(P1) Philadelphia Flyers vs. (A2) Montreal Canadiens
This was the third playoff series meeting between these two teams. Montreal won both previous meetings, including their last meeting in a four-game sweep in the 1976 Stanley Cup Finals.

(S1) Edmonton Oilers vs. (N2) Detroit Red Wings
This was the first playoff series meeting between these two teams.

Stanley Cup Finals
This was the third playoff series between these two teams, and their second Finals meeting. Both teams split their previous two meetings. Edmonton won the 1985 Stanley Cup Finals in five games. This time, Edmonton was the regular season champion with 50 wins and 106 points, and Philadelphia was second with 46 wins and 100 points.

Unlike the 1985 final, this series would go the distance; and for the first time since 1971, the Stanley Cup Finals went the full seven games. Edmonton took the first two games at home, then split in Philadelphia. However, the Flyers won the next two games, one in Edmonton and one back in Philadelphia by one goal after overcoming two-goal deficits in both games facing elimination, to force a deciding seventh game. Edmonton won game seven to earn its third Stanley Cup in four seasons.

Skaters
These are the top ten skaters based on points.

Goaltenders
This is a combined table of the top five goaltenders based on goals against average and the top five goaltenders based on save percentage, with at least 420 minutes played. The table is sorted by GAA, and the criteria for inclusion are bolded.