| Rank | Attendance | Location | Date | Event | Home team | Final score | Visiting team | 
|---|
| 1 | 113,411 (announced) [3] 104,173 (certified) [2]
 |  Michigan Stadium, Ann Arbor | December 11, 2010 | The Big Chill at the Big House | Michigan Wolverines (men) | 5–0 | Michigan State Spartans (men) | 
| 2 | 105,491 (announced) [4] < 104,173 (certified) [5]
 |  Michigan Stadium, Ann Arbor | January 1, 2014 | 2014 NHL Winter Classic | Detroit Red Wings | 2–3 (SO) | Toronto Maple Leafs | 
| 3 | 94,751 [6]  [7] |  Ohio Stadium, Columbus, Ohio | March 1, 2025 | 2025 NHL Stadium Series | Columbus Blue Jackets | 5–3 | Detroit Red Wings | 
| 4 | 85,630 [8] |  Cotton Bowl, Dallas | January 1, 2020 | 2020 NHL Winter Classic | Dallas Stars | 4–2 | Nashville Predators | 
| 5 | 79,690 [9] |  MetLife Stadium, East Rutherford | February 18, 2024 | 2024 NHL Stadium Series | New York Islanders | 5–6 (OT) | New York Rangers | 
| 6 | 77,803 [10] |  Veltins-Arena, Gelsenkirchen | May 7, 2010 | 2010 IIHF World Championship |  United States | 1–2 (OT) |  Germany  [11] | 
| 7 | 74,554 [12] |  Spartan Stadium, East Lansing | October 6, 2001 | Cold War | Michigan State Spartans (men) | 3–3 | Michigan Wolverines (men) | 
| 8 | 71,381 [13] |  Gazprom Arena, Saint Petersburg | December 16, 2018 | Euro Hockey Tour |  Russia | 5–0 |  Finland | 
| 9 | 71,217 [14] |  Ralph Wilson Stadium, Orchard Park | January 1, 2008 | 2008 NHL Winter Classic | Buffalo Sabres | 1–2 (SO) | Pittsburgh Penguins | 
| 10 | 70,328 [15] |  MetLife Stadium, East Rutherford | February 17, 2024 | 2024 NHL Stadium Series | New Jersey Devils | 6–3 | Philadelphia Flyers | 
| 11 | 70,205 [16] |  Levi's Stadium, Santa Clara, California | February 21, 2015 | 2015 NHL Stadium Series | San Jose Sharks | 1–2 | Los Angeles Kings | 
| 12 | 69,620 |  Lincoln Financial Field, Philadelphia | February 23, 2019 | 2019 NHL Stadium Series | Philadelphia Flyers | 4–3 (OT) | Pittsburgh Penguins | 
| 13 | 68,619 [17] |  Nissan Stadium, Nashville | February 26, 2022 | 2022 NHL Stadium Series | Nashville Predators | 2–3 | Tampa Bay Lightning | 
| 14 | 68,111 [18] |  Heinz Field, Pittsburgh | January 1, 2011 | 2011 NHL Winter Classic | Pittsburgh Penguins | 1–3 | Washington Capitals | 
| 15 | 67,877 [19] |  Gazprom Arena, Saint Petersburg | December 15, 2019 | Euro Hockey Tour |  Russia | 2–0 |  Finland | 
| 16 | 67,770 [20] |  Gazprom Arena, Saint Petersburg | December 22, 2018 | Hockey Classic St. Petersburg 2018 [21] | SKA St. Petersburg | 1–4 | HC CSKA Moscow | 
| 17 | 67,318 [22] |  Heinz Field, Pittsburgh | February 25, 2017 | 2017 NHL Stadium Series | Pittsburgh Penguins | 4–2 | Philadelphia Flyers | 
| 18 | 67,246 [23] |  Gillette Stadium, Foxborough | January 1, 2016 | 2016 NHL Winter Classic | Boston Bruins | 1–5 | Montreal Canadiens | 
| 19 | 62,921 |  Soldier Field, Chicago | March 1, 2014 | 2014 NHL Stadium Series | Chicago Blackhawks | 5–1 | Pittsburgh Penguins | 
| 20 | 57,167 [24] |  Commonwealth Stadium, Edmonton | November 22, 2003 | 2003 Heritage Classic | Edmonton Oilers | 3–4 | Montreal Canadiens | 
| 21 | 56,961 |  Carter-Finley Stadium, Raleigh | February 18, 2023 | 2023 NHL Stadium Series | Carolina Hurricanes | 4–1 | Washington Capitals | 
| 22 | 55,411 |  Commonwealth Stadium, Edmonton | October 29, 2023 | 2023 NHL Heritage Classic | Edmonton Oilers | 5–2 | Calgary Flames | 
| 23 | 55,031 [25] |  Camp Randall Stadium, Madison | February 6, 2010 | Camp Randall Hockey Classic | Wisconsin Badgers (women) | 6–1 | Bemidji State Beavers (women) | 
| Wisconsin Badgers (men) | 3–2 | Michigan Wolverines (men) | 
| 24 | 55,000 [12] |  Lenin Stadium, Moscow | March 5, 1957 | 1957 Ice Hockey World Championships |  Soviet Union | 4–4 |  Sweden | 
| 25 | 54,194 |  BC Place, Vancouver | March 2, 2014 | 2014 NHL Heritage Classic | Vancouver Canucks | 2–4 | Ottawa Senators | 
| 26 | 54,099 |  Dodger Stadium, Los Angeles | January 25, 2014 | 2014 NHL Stadium Series | Los Angeles Kings | 0–3 | Anaheim Ducks | 
| 27 | 52,051 |  Soldier Field, Chicago | February 17, 2013 | OfficeMax Hockey City Classic | Notre Dame Fighting Irish (men) | 2–1 | Miami RedHawks (men) | 
| Wisconsin Badgers (men) | 3–2 | Minnesota Golden Gophers (men) | 
| 28 | 51,125 [26] |  ESPRIT arena, Düsseldorf | January 10, 2015 | 2015 DEL Winter Game | Düsseldorfer EG | 3–2 | Kölner Haie | 
| 29 | 50,426 |  TCF Bank Stadium, Minneapolis | February 21, 2016 | 2016 NHL Stadium Series | Minnesota Wild | 6–1 | Chicago Blackhawks | 
| 30 | 50,105 |  Yankee Stadium, New York City | January 26, 2014 | 2014 NHL Stadium Series | New Jersey Devils | 3–7 | New York Rangers | 
| 31 | 50,095 |  Coors Field, Denver | February 27, 2016 | 2016 NHL Stadium Series | Colorado Avalanche | 3–5 | Detroit Red Wings | 
| 32 | 50,027 |  Yankee Stadium, New York City | January 29, 2014 | 2014 NHL Stadium Series | New York Islanders | 1–2 | New York Rangers | 
| 33 | 50,000 [27] |  Stadion Nürnberg, Nuremberg | January 5, 2013 | 2013 DEL Winter Game | Thomas Sabo Ice Tigers | 4–3 | Eisbären Berlin | 
| 34 | 47,313 [28] |  T-Mobile Park, Seattle | January 1, 2024 | 2024 NHL Winter Classic | Seattle Kraken | 3–0 | Vegas Golden Knights | 
| 35 | 47,011 [29] |  RheinEnergieStadion, Cologne | January 12, 2019 | 2019 DEL Winter Game | Kölner Haie | 2–3 (OT) | Düsseldorfer EG | 
| 36 | 46,967 [30] |  Citizens Bank Park, Philadelphia | January 2, 2012 | 2012 NHL Winter Classic | Philadelphia Flyers | 2–3 | New York Rangers | 
| 37 | 46,556 |  Busch Stadium, St. Louis | January 2, 2017 | 2017 NHL Winter Classic | St. Louis Blues | 4–1 | Chicago Blackhawks | 
| 38 | 45,808 [31] |  Citizens Bank Park, Philadelphia | December 31, 2011 | NHL Winter Classic Alumni Game | Philadelphia Flyers Alumni | 3–1 | New York Rangers Alumni | 
| 39 | 45,653 [32] |  Citizens Bank Park, Philadelphia | January 6, 2012 | 2012 AHL Outdoor Classic | Adirondack Phantoms | 4–3 (OT) | Hershey Bears | 
| 40 | 45,523 |  FirstEnergy Stadium, Cleveland | February 18, 2023 | Faceoff on the Lake | Ohio State Buckeyes (men) | 4–2 | Michigan Wolverines (men) | 
| 41 | 45,021 [33] |  TCF Stadium, Minneapolis | January 17, 2014 | 2014 Hockey City Classic | Minnesota Gophers (men) | 1–0 | Ohio State Buckeyes (men) | 
| 42 | 44,592 [34] |  Ralph Wilson Stadium, Orchard Park | December 29, 2017 | 2018 World Junior Ice Hockey Championships |  United States | 4–3 (SO) |  Canada | 
| 43 | 42,832 [35] |  Nationals Park, Washington, D.C. | January 1, 2015 | 2015 NHL Winter Classic | Washington Capitals | 3–2 | Chicago Blackhawks | 
| 44 | 41,022 [36] |  McMahon Stadium, Calgary | February 20, 2011 | 2011 Heritage Classic | Calgary Flames | 4–0 | Montreal Canadiens | 
| 45 | 40,933 [37] |  Wrigley Field, Chicago | December 31, 2024 | 2025 NHL Winter Classic | Chicago Blackhawks | 2–6 | St. Louis Blues | 
| 46 | 40,890 [38] |  Lambeau Field, Green Bay | February 13, 2006 | Frozen Tundra Hockey Classic | Wisconsin Badgers (men) | 4–2 | Ohio State Buckeyes (men) | 
| 47 | 40,818 [39] |  Wrigley Field, Chicago | January 1, 2009 | 2009 NHL Winter Classic | Chicago Blackhawks | 4–6 | Detroit Red Wings | 
| 48 | 40,163 [40] |  RheinEnergieStadion, Cologne | December 3, 2022 | 2022 DEL Winter Game | Kölner Haie | 4–2 | Adler Mannheim | 
| 49 | 38,472 [41] |  Fenway Park, Boston | January 8, 2010 | Frozen Fenway | Northeastern Huskies (women) | 3–5 | New Hampshire Wildcats (women) | 
| Boston College Eagles (men) | 2–3 | Boston University Terriers (men) | 
| 50 | 38,456 [42] |  Fenway Park, Boston | January 7, 2012 | Frozen Fenway 2012 | UMass Minutemen (men) | 3–2 (OT) | Vermont Catamounts (men) | 
| Maine Black Bears (men) | 5–4 (OT) | New Hampshire Wildcats (men) |