The Atlantic Division is a name used by the National Hockey League to describe a division of teams in the Eastern Conference. The original Atlantic Division, the predecessor of which was the Patrick Division, was formed in 1993 as part of the Eastern Conference in a league realignment. As part of a 2013 realignment, the entirety of the former Atlantic Division was realigned into the Metropolitan Division. The Atlantic Division name was assigned to a new division comprising the former Northeast Division plus the Florida Panthers and the Tampa Bay Lightning (coincidentally, both were members of the original Atlantic Division until 1998) from the now-defunct Southeast Division, and the Detroit Red Wings, who moved from the Central Division of the Western Conference. This division features a number of classic and modern NHL rivalries, including Bruins–Canadiens, Canadiens–Maple Leafs, Maple Leafs–Red Wings, Maple Leafs–Senators, and Lightning–Panthers. Games between the division's three Canadian teams, plus the Bruins and Red Wings, are frequently featured on Hockey Night in Canada as its main attraction.

Division lineups

1993–1998

Changes from the 1992–93 season

1998–2013

Changes from the 1997–98 season

2013–2020

Changes from the 2012–13 season

2020–2021

Changes from the 2019–20 season

2021–present

Changes from the 2020–21 season

Division champions

Season results

Stanley Cup winners produced

Presidents' Trophy winners produced

Atlantic Division titles won by team

Teams in bold are currently in the division.