The NHL's Atlantic Division was formed in 1993 as part of the Eastern Conference in a league realignment, the predecessor of which was the Patrick Division. It was changed in 2013 with the league's realignment.

• Florida Panthers
• New Jersey Devils
• New York Islanders
• New York Rangers
• Philadelphia Flyers
• Tampa Bay Lightning
• Washington Capitals

• The Atlantic Division is formed as a result of NHL realignment
• The New Jersey Devils, New York Islanders, New York Rangers, Philadelphia Flyers, and Washington Capitals come from the Patrick Division
• The Tampa Bay Lightning come from the Norris Division
• The Florida Panthers are added as an expansion team

• New Jersey Devils
• New York Islanders
• New York Rangers
• Philadelphia Flyers
• Pittsburgh Penguins

• The Florida Panthers, Tampa Bay Lightning, and Washington Capitals move to the new Southeast Division
• The Pittsburgh Penguins come from the Northeast Division

• Boston Bruins
• Buffalo Sabres
• Detroit Red Wings
• Florida Panthers
• Montreal Canadiens
• Ottawa Senators
• Tampa Bay Lightning
• Toronto Maple Leafs

• The Northeast and Southeast Divisions are dissolved due to NHL realignment
• The New Jersey Devils, New York Islanders, New York Rangers, Philadelphia Flyers, and Pittsburgh Penguins move to the Metropolitan Division
• The Boston Bruins, Buffalo Sabres, Montreal Canadiens, Ottawa Senators, and Toronto Maple Leafs come from the Northeast Division
• The Florida Panthers and Tampa Bay Lightning come from the Southeast Division
• The Detroit Red Wings come from the Central Division

• 1994—New York Rangers (52–24–8, 112 pts)
• 1995—Philadelphia Flyers (28–16–4, 60 pts)
• 1996—Philadelphia Flyers (45–24–13, 103 pts)
• 1997—New Jersey Devils (45–23–14, 104 pts)
• 1998—New Jersey Devils (48–23–11, 107 pts)
• 1999—New Jersey Devils (47–24–11, 105 pts)
• 2000—Philadelphia Flyers (45–22–12–3, 105 pts)
• 2001—New Jersey Devils (48–19–12–3, 111 pts)
• 2002—Philadelphia Flyers (42–27–10–3, 97 pts)
• 2003—New Jersey Devils (46–20–10–6, 108 pts)
• 2004—Philadelphia Flyers (40–21–15–6, 101 pts)
• 2005—no season (NHL Lockout)
• 2006—New Jersey Devils (46–27–9, 101 pts)
• 2007—New Jersey Devils (49–24–9, 107 pts)
• 2008—Pittsburgh Penguins (47–27–8, 102 pts)
• 2009—New Jersey Devils (51–27–4, 106 pts)
• 2010—New Jersey Devils (48–27–7, 103 pts)
• 2011—Philadelphia Flyers (47–23–12, 106 pts)
• 2012—New York Rangers (51–24–7, 109 pts)
• 2013—Pittsburgh Penguins (36–12–0, 72 pts)

• 2014—Boston Bruins (54–19–9, 117 pts)
• 2015—Montreal Canadiens (50–22–10, 110 pts)
• 2016—Florida Panthers (47–26–9, 103 pts)
• 2017—Montreal Canadiens (47–26–9, 103 pts)

• Green background denotes qualified for playoffs

1. 1994—New York Rangers
2. 1995—New Jersey Devils
3. 2000—New Jersey Devils
4. 2003—New Jersey Devils
5. 2009—Pittsburgh Penguins

1. 1994—New York Rangers
2. 2014—Boston Bruins

Teams in bold are currently in the division.

• NHL History