2019–20 New York Islanders season

The 2019–20 New York Islanders season was the 48th season in the franchise's history. It was their fifth season in the Barclays Center in the New York City borough of Brooklyn, which they moved into after leaving Nassau Coliseum in Nassau County on Long Island at the conclusion of the 2014–15 season. During the regular season, the Islanders were scheduled to play 21 home games at Nassau Coliseum but on September 23 moved seven more games from the Barclays Center, making it a total of 28 games to be played at Nassau Coliseum. On February 29, 2020, it was announced that the Islanders would play their last game at Barclays Center on March 22, and then would move to Nassau Coliseum permanently.

The season was suspended by the league officials on March 12, 2020, after several other professional and collegiate sports organizations followed suit as a result of the ongoing COVID-19 pandemic. On May 26, the NHL regular season was officially declared over with the remaining games being cancelled. The Islanders advanced to the playoffs where they defeated the Florida Panthers in the qualifying round. They would then defeat the Washington Capitals in 5 games in the first round. They faced off against the Philadelphia Flyers in the second round, defeating them in 7 games and advanced to the Conference Finals for the first time since 1993. However, the Islanders would go on to lose to the Tampa Bay Lightning in 6, ending their playoff run.

Preseason
The preseason schedule was published on June 18, 2019.

Regular season
The regular season schedule was released on June 25, 2019. On September 23, the Islanders revised their schedule and moved seven games from Barclays Center to Nassau Coliseum.

Playoffs
The Islanders faced the Florida Panthers in the qualifying round, defeating them in four games.

The Islanders faced the Washington Capitals in the first round, defeating them in five games.

In the second round, the Islanders faced the Philadelphia Flyers, defeating them in seven games, and advanced to the Conference Finals for the first time since 1993.

The Islanders faced the Tampa Bay Lightning in the Conference Finals, where they lost in six games.

Player statistics
As of September 5, 2020

Goaltenders
†Denotes player spent time with another team before joining the Islanders. Stats reflect time with the Islanders only.

‡Denotes player was traded mid-season. Stats reflect time with the Islanders only.

Bold/italics denotes franchise record.

Transactions
The Islanders have been involved in the following transactions during the 2019–20 season.

Draft picks
Below are the New York Islanders' selections at the 2019 NHL Entry Draft, which was held on June 21 and 22, 2019, at Rogers Arena in Vancouver, British Columbia.

Notes:
 * 1) The Calgary Flames' second-round pick went to the New York Islanders as the result of a trade on June 24, 2017, that sent Travis Hamonic and a conditional fourth-round pick in 2019 to Calgary in exchange for a first and second-round pick in 2018 and this pick (being conditional at the time of the trade).