This is a list of the longest winning streaks in National Hockey League (NHL) history.
[1] Only regular season winning streaks lasting twelve or more games are included.
The Boston Bruins appear four times across both lists, with three of those streaks over 10 games occurring in the regular season.
The longest undefeated streak (ties included) in NHL history belonged to the 1979–80 Philadelphia Flyers, who went unbeaten for 35 consecutive games.
This list includes teams who had the longest undefeated streaks in NHL history.