The ECAC began sponsoring an invitational women's tournament in 1985. There was an informal regular season schedule played in the 1988–89 season. The conference officially began sponsoring women's hockey in the 1993–94 season. ECAC Hockey is the only hockey conference with identical membership in both its women's and men's divisions.
ECAC Tournament Champions
| 1985 | Providence | 2005 | Harvard |
| 1986 | New Hampshire | 2006 | Harvard |
| 1987 | New Hampshire | 2007 | Dartmouth |
| 1988 | Northeastern | 2008 | Harvard |
| 1989 | Northeastern | 2009 | Dartmouth |
| 1990 | New Hampshire | 2010 | Cornell |
| 1991 | New Hampshire | 2011 | Cornell |
| 1992 | Providence | 2012 | St. Lawrence |
| 1993 | Providence | 2013 | Cornell |
| 1994 | Providence | 2014 | Cornell |
| 1995 | Providence | 2015 | Harvard |
| 1996 | New Hampshire | 2016 | Quinnipiac |
| 1997 | Northeastern | 2017 | Clarkson |
| 1998 | Brown | 2018 | Clarkson |
| 1999 | Harvard | 2019 | Clarkson |
| 2000 | Brown | 2020 | Princeton |
| 2001 | Dartmouth | 2021 | Colgate |
| 2002 | Brown | 2022 | Colgate |
| 2003 | Dartmouth | 2023 | Colgate |
| 2004 | Harvard | 2024 | Colgate |
ECAC Hockey Instagram
Brown University
Providence, Rhode Island
Mascot: Bears
Rink: Meehan Auditorium, capacity 3,100
Coach: Mel Ruzzi (3rd season)
Frozen Four Appearances: 2002
NCAA Tournament Appearances: 2002
Brown women's hockey homepage
Brown women's hockey Instagram
Clarkson University
Potsdam, New York
Mascot: Golden Knights
Rink: Cheel Arena, capacity 3,000
Coach: Matt Desrosiers (17th season)
Frozen Four Appearances: 2014, 2016, 2017, 2018, 2019, 2025
NCAA Tournament Appearances: 2010, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2010, 2022, 2023, 2024
NCAA Tournament Champions: 2014, 2017, 2018
Clarkson women's hockey homepage
Clarkson women's hockey Instagram
Colgate University
Hamilton, New York
Mascot: Raiders
Rink: Class of 1965 Arena, capacity 2,222
Coach: Stefan Decosse (1st season)
Frozen Four Appearances: 2018, 2024
NCAA Tournament Appearances: 2018, 2021, 2022, 2023, 2024
Colgate women's hockey homepage
Colgate women's hockey Instagram
Cornell University
Ithaca, New York
Mascot: Big Red
Rink: Lynah Rink, capacity 4,267
Coach: Doug Derraugh (19th season)
Frozen Four Appearances: 2010, 2011, 2012, 2019
NCAA Tournament Appearances: 2010, 2011, 2012, 2013, 2014, 2017, 2019, 2024
Cornell women's hockey homepage
Cornell women's hockey Instagram
Dartmouth University
Hanover, New Hampshire
Mascot: Big Green
Rink: Thompson Arena, capacity 4,500
Coach: Maura Crowell (1st season)
Frozen Four Appearances: 2003, 2004, 2005
NCAA Tournament Appearances: 2001, 2003, 2004, 2007,
2008, 2009, 2011
Dartmouth women's hockey homepage
Dartmouth women's hockey Instagram
Harvard University
Cambridge, Massachusetts
Mascot: Crimson
Rink: Bright Hockey Center, capacity 2,850
Coach: Laura Bellamy (2nd season)
Frozen Four Appearances: 2003, 2004, 2005, 2008, 2015
NCAA Tournament Appearances: 2001, 2003, 2004, 2005, 2006, 2007, 2008, 2010, 2013, 2014, 2015, 2022
Harvard women's hockey homepage
Harvard women's hockey Instagram
Princeton University
Princeton, New Jersey
Mascot: Tigers
Rink: Hobey Baker Memorial Rink, capacity 2,092
Coach: Cara Morey (8th season)
NCAA Tournament Appearances: 2006, 2015, 2019
Princeton women's hockey homepage
Princeton women's hockey Instagram
Quinnipiac University
Hamden, Connecticut
Mascot: Bobcats
Rink: M&T Bank Arena, capacity 3,386
Coach: Cassandra Turner (10th season)
NCAA Tournament Appearances: 2015, 2016, 2022, 2023
Quinnipiac women's hockey homepage
Quinnipiac women's hockey Instagram
Rensselaer Polytechnic Institute (RPI)
Troy, New York
Mascot: Engineers
Rink: Houston Field House, capacity 4,780
Coach: Brian Vines (8th season)
RPI women's hockey homepage
RPI women's hockey Instagram
St. Lawrence University
Canton, New York
Mascot: Saints
Rink: Appleton Arena, capacity 3,000
Coach: Christ Wells (17th season)
Frozen Four Appearances: 2001, 2004, 2005, 2006, 2007
NCAA Tournament Appearances: 2001, 2004, 2005, 2006, 2007, 2008, 2009, 2012, 2017, 2024
St. Lawrence women's hockey homepage
St. Lawrence women's hockey on Instagram
Union College
Schenectady, New York
Mascot: Garnet Chargers
Rink: Frank L. Messa Rink at Achilles Center, capacity 2,225
Coach: Tony Maci (1st season)
Union women's hockey homepage
Union women's hockey Instagram
Yale University
New Haven, CT
Mascot: Bulldogs
Rink: Ingalls Rink, capacity 3,500
Coach: Mark Bolding (6th season)
Frozen Four Appearances: 2022
NCAA Tournament Appearances: 2022, 2023
Yale women's hockey homepage
Yale women's hockey Instagram
Postseason tournament structure
Byes: Top four earn a bye to the quarterfinals
Opening round: Single game
#12 seed at #5 seed
#11 seed at #6 seed
#10 seed at #7 seed
#9 seed at #8 seed
Quarterfinals: Best-of-three series
lowest remaining seed at #1 seed
second-lowest remaining seed at #2 seed
third-lowest remaining seed at #3 seed
fourth-lowest remaining seed at #4 seed
Semifinals: Single game
semifinals are lowest remaining seed at highest remaining seed
second-lowest remaining seed at second-highest remaining seed
Championship: Single game at highest remaining seed