The 2017 Stanley Cup playoffs was the playoff tournament of the National Hockey League (NHL) for the 2016–17 regular season. They began on April 12, 2017, after the regular season, and they concluded on June 11, 2017, with the Pittsburgh Penguins defeating the Nashville Predators four games to two in the Finals. The Penguins won their fifth overall Stanley Cup, and became the first team to win back-to-back championships since the 1998 Detroit Red Wings.

The Washington Capitals qualified for the playoffs as the Presidents' Trophy winners for the second consecutive year with the most points (i.e. best record) during the regular season. The Detroit Red Wings failed to make the playoffs for the first time since the 1989–90 season, ending both the NHL's and the Major North American Sports longest active playoff streak at 25 consecutive seasons; the streak was also tied for the third-longest streak in NHL history. The San Antonio Spurs of the NBA now owned the longest playoffs streak at 20 years in Major North American Sports. The longest active NHL playoff streak was assumed by the Penguins with eleven consecutive appearances. The Edmonton Oilers made the playoffs for the first time since 2006, ending a then-record-tying playoff drought for a team with ten years missed (the Florida Panthers also missed the playoffs between 2001 and 2011 inclusively. Buffalo set the record in 2022 missing eleven consecutive postseasons). For the first time since 2006, both Alberta teams, the Oilers and the Calgary Flames, qualified for the postseason in the same year. For the first time since 2013, and the fourth time since 2002, all three Eastern Canadian teams (Montreal Canadiens, Ottawa Senators, and Toronto Maple Leafs) qualified for the playoffs. In all, five Canadian-based teams made the playoffs, matching 2004 and 2015, after a season in which none of the seven teams in Canada contended. Five Original Six teams made the playoffs, with only the previously mentioned Red Wings failing to make it.

The first round saw eighteen overtime games, eclipsing the previous record of seventeen overtime games in the first round set in 2013. There were 27 total overtime games in these playoffs, one short of the record set in 1993. It was also the first time since 2001 that no first round series went the full seven games.

For the eighth season in a row (and the twelfth time in the last fourteen seasons), a California-based team advanced the Western Conference final.

Playoff seeds

This was the fourth year in which the top three teams in each division make the playoffs, along with two wild cards in each conference (for a total of eight playoff teams from each conference).

The following teams qualified for the playoffs:

Eastern Conference

Atlantic Division Montreal Canadiens, Atlantic Division champions – 103 points Ottawa Senators – 98 points Boston Bruins – 95 points (42 )

Metropolitan Division Washington Capitals, Metropolitan Division champions, Eastern Conference regular season champions, Presidents' Trophy winners – 118 points Pittsburgh Penguins – 111 points Columbus Blue Jackets – 108 points

Wild cards New York Rangers – 102 points Toronto Maple Leafs – 95 points (39 )

Western Conference

Central Division Chicago Blackhawks, Central Division champions, Western Conference regular season champions – 109 points Minnesota Wild – 106 points St. Louis Blues – 99 points

Pacific Division Anaheim Ducks, Pacific Division champions – 105 points Edmonton Oilers – 103 points San Jose Sharks – 99 points

Wild cards Calgary Flames – 94 points (41 ) Nashville Predators – 94 points (39 )

Playoff bracket In each round, teams competed in a best-of-seven 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). The team with home ice advantage played at home for games one and two (and games five and seven, if necessary), and the other team was at home for games three and four (and game six, if necessary). The top three teams in each division made the playoffs, along with two wild cards in each conference, for a total of eight teams from each conference.

In the first round, the lower seeded wild card in the conference played against the division winner with the best record while the other wild card played against the other division winner, and both wild cards were de facto #4 seeds. The other series matched the second and third place teams from the divisions. In the first two rounds, home ice advantage was awarded to the team with the better seed; in the last two rounds, it was awarded to the team that had the better regular season record.

Legend A1, A2, A3 – The first, second, and third place teams from the Atlantic Division, respectively M1, M2, M3 – The first, second, and third place teams from the Metropolitan Division, respectively C1, C2, C3 – The first, second, and third place teams from the Central Division, respectively P1, P2, P3 – The first, second, and third place teams from the Pacific Division, respectively WC1, WC2 – The first and second place teams in the Wild Card, respectively

First round

Eastern Conference first round

(A1) Montreal Canadiens vs. (WC1) New York Rangers

The Montreal Canadiens finished first in the Atlantic Division earning 103 points. The New York Rangers finished as the Eastern Conference's first wild-card, earning 102 points. This was the sixteenth playoff meeting between these two teams with New York winning eight of the fifteen previous series. They last met in the 2014 Eastern Conference final, which New York won in six games. Montreal won all three games in this year's regular-season series.

The Rangers eliminated the Canadiens in six games. In the first game of the series, Tanner Glass and Michael Grabner scored the only goals of the games as the Rangers won the game 2–0 on Henrik Lundqvist's 31-save shutout. In game two, the Canadiens tied the game with 18 seconds left, then in overtime, Alexander Radulov pushed it past the Rangers' goaltender to give Montreal a 4–3 victory. Radulov continued his scoring into game three, getting a goal and an assist to help the Canadiens achieve a 3–1 victory. The Rangers ended a six-game home-losing streak after game four, winning 2–1 over the Canadiens to tie the series 2–2. Mika Zibanejad got the overtime-winner for the Rangers in game five after Chris Kreider deflected a pass off of Canadiens defenceman Alexei Emelin, landing towards the forward who put it past goaltender Carey Price in a 3–2 win. Mats Zuccarello scored twice in game six as the Rangers eliminated the Canadiens in a 3–1 victory to advance to the second round.

(A2) Ottawa Senators vs. (A3) Boston Bruins

The Ottawa Senators finished second in the Atlantic Division, earning 98 points. The Boston Bruins earned 95 points in the regular season to finish third in the Atlantic. This was the first playoff meeting between the contemporary Ottawa franchise and Boston, and the first Boston-Ottawa series since the 1927 Stanley Cup Finals. Ottawa won all four games in this year's regular season series.

The Senators eliminated the Bruins in six games. In the first game, the Senators gained a 1–0 lead into the third on Bobby Ryan's goal in the second period, however, the Bruins scored twice in the final period with Brad Marchand having the final tally 2:33 before the game ended 2–1 for Boston. In game two, Ottawa came back from a two-goal deficit in the third period and won via Dion Phaneuf whose goal in overtime helped tie the series 1–1 after a 4–3 conquest. In game three, Ottawa had a three-goal lead with Mike Hoffman scoring twice, but the Bruins came back with three goals in the third period. In overtime, Bruins forward Riley Nash took a roughing penalty and on the ensuing power play, Bobby Ryan tipped in a pass from Kyle Turris ending the game 4–3 for the Senators. Bobby Ryan scored the only goal in game four, at the 5:49 mark of the third period, allowing the Senators to achieve a 3–1 series lead. Boston came back from an early 2–0 deficit in game five and the game would go to overtime. In double-overtime, Bruins rookie Sean Kuraly scored his second goal of the game, completing the comeback in a 3–2 feat. In game six, Clarke MacArthur scored the series-winning goal on the power play in overtime for Ottawa to advance to the second round.

(M1) Washington Capitals vs. (WC2) Toronto Maple Leafs

The Washington Capitals earned the Presidents' Trophy for the second consecutive year as the NHL's best regular season team this time with 118 points. The Toronto Maple Leafs finished as the Eastern Conference's second wild-card, earning 95 points. This was the first playoff meeting between these two teams. Washington won two of the three games in this year's regular season series.

This became only the third playoff series in NHL history in which five games were decided in overtime (the first being the 1951 Stanley Cup Finals between the Toronto Maple Leafs and the Montreal Canadiens and the second occurring in the 2012 Western Conference quarterfinals between the Phoenix Coyotes and the Chicago Blackhawks).

The Capitals defeated the Maple Leafs in six games. Although Toronto had a two-goal lead in the first ten minutes of the first game, Washington scored two goals, both from Justin Williams, and won the game 3–2 in overtime from Tom Wilson's goal. In game two, rookie Kasperi Kapanen scored twice including the game-winner in double-overtime leading the Maple Leafs to a 4–3 victory. Washington took two two-goal leads in game three; the first pick in the 2016 NHL Draft, Auston Matthews, helped soften the lead with his first playoff goal, but after the Capitals got a 3–1 lead, the Maple Leafs scored twice to tie the game. Then in overtime, Tyler Bozak tipped a shot past the Capitals' goaltender to give the Leafs a 2–1 series lead. Game four was the only game of the series not to go into overtime; Tom Wilson and T. J. Oshie both scored two goals and Oshie's second goal proved to be the game-winner in a 5–4 victory after an attempted comeback by Toronto was thwarted. Game five featured the fourth overtime game of this series with Justin Williams scoring for Capitals in a 2–1, taking a 3–2 series lead in the process. In game six, the game went to overtime for the fifth time this series and at 6:31 of the first overtime period Marcus Johansson scored his second goal for the Capitals in a 2–1 victory and another trip to the second round.

(M2) Pittsburgh Penguins vs. (M3) Columbus Blue Jackets

The Pittsburgh Penguins finished second in the Metropolitan Division earning 111 points. The Columbus Blue Jackets earned 108 points to finish third in the Metropolitan. This was the second playoff meeting between these teams; they last met in the 2014 Eastern Conference first round, which Pittsburgh won in six games. The teams split this year's four-game regular season series.

The Penguins defeated the Blue Jackets in five games. Before game one began, Matt Murray, the starting goaltender for the Penguins, injured himself during warm-ups forcing Marc-Andre Fleury, who had been demoted to the backup for the season, to start the game; his team would win the game 3–1, making 31 saves in the process. Sidney Crosby got a goal and two assists in game two as the Penguins defeated the Blue Jackets 4–1 and took a 2–0 series lead. In game three, Jake Guentzel scored a hat-trick, his third being the overtime-winner as the Penguins came back from a two-goal deficit and defeated the Blue Jackets 5–4 and take a 3–0 series lead. Columbus avoided a sweep in game four, scoring with five different players in a 5–4 victory; this was also the franchise's first playoff win in regulation. In game five, Bryan Rust scored twice, including the series-winner, and Fleury made 49 saves in a 5–2 win for the Penguins to advance to the second round.

Western Conference first round