1983–84 New York Islanders season

The 1983–84 New York Islanders season was the 12th season for the franchise in the National Hockey League (NHL). The Islanders entered to the season as the four-time defending Stanley Cup champions, and subsequently went the Stanley Cup Final for the fifth time in a row, but lost four games to one in a rematch against the Edmonton Oilers.

The Islanders nevertheless set a new North American major professional sports record by winning nineteen consecutive playoff series (two more than the seventeen series won by the Boston Celtics in their eight-year NBA championship dynasty) and unmatched in any major sport since.

As of 2026, this remains the most recent season that the Islanders made it to the Stanley Cup Final.