The 2020–21 St. Lawrence Saints Men's ice hockey season was the 81st season of play for the program and the 60th season in the ECAC Hockey conference. The Saints represented the St. Lawrence University and were coached by Brent Brekke, in his 2nd season.

As a result of the ongoing COVID-19 pandemic the entire college ice hockey season was delayed. Because the NCAA had previously announced that all winter sports athletes would retain whatever eligibility they possessed through at least the following year, none of St. Lawrence's players would lose a season of play.^[1] However, the NCAA also approved a change in its transfer regulations that would allow players to transfer and play immediately rather than having to sit out a season, as the rules previously required.^[2]

After an abysmal season, St. Lawrence continued to see a great deal of roster turnover as the program recovered from Mark Morris's tenure. The Saints got a late start to the season, even after the delay due to COVID, but the team played surprisingly well once they got on the ice. buoyed by the play of junior netminder Emil Zetterquist, SLU gave opponents fits throughout the season, holding at least a .500 record until February when the team ran into league-leading Quinnipiac and lost four consecutive matches against the Bobcats. Even with the losses, however, St. Lawrence kept the score close and demonstrated great strides by a team that had finished last in the ECAC for three consecutive years.

St. Lawrence's final matchup of the regular season was cancelled when Clarkson ended their season due to COVID protocol violations.^[3] The Saints ended in 3rd place, giving them a home game for the ECAC Tournament. Ordinarily this would have been seen as a positive for the team, but St. Lawrence hadn't won a single home game through 7 games. Despite the recent history, SLU produced its largest offensive output of the season and defeated Colgate 5–4 in overtime. The Saints found themselves playing for a chance to go to the NCAA Tournament despite a 5–8–3 record and got out to an early lead. Quinnipiac took over in the second and then tried to play in a defensive shell for the remainder of the contest but the Larries scored late and then David Jankowski scored the game-winner in the fourth minute of overtime.

The miraculous, albeit short, run for the Saints gave them their first league championship in 20 years and their first tournament berth since 2007. Unfortunately, everything came crashing to a halt a day later when Brent Brekke tested positive for COVID-19 and St. Lawrence was forced to withdraw from the tournament.^[4] St. Lawrence was just the second ECAC Tournament champion to not play in the NCAA Tournament and the second time a team declined an automatic invitation to a national tournament, the previous time for both was by Harvard in 1963.^[5]

Grant Adams and Luke Erickson sat out the season.

As of December 31, 2020.^[6]

More information No., S/P/C ...

No.	S/P/C	Player	Class	Pos	Height	Weight	DoB	Hometown	Previous team	NHL rights
1		Emil Zetterquist	Junior	G	6' 1" (1.85 m)	190 lb (86 kg)	1998-09-21	Stockholm, Sweden	Coulee Region (NAHL)	—
2		Dylan Woolf (C)	Senior	D	6' 1" (1.85 m)	205 lb (93 kg)	1996-05-03	Victoria, Minnesota	Lincoln (USHL)	—
3		Mark Mahoney	Junior	D	5' 11" (1.8 m)	185 lb (84 kg)	1999-05-08	Canton, New York	Hotchkiss (USHS–CT)	—
4		Cameron White	Senior	D	6' 3" (1.91 m)	200 lb (91 kg)	1997-03-12	Toronto, Ontario	Ottawa (CCHL)	—
7		Luc Salem	Freshman	D	5' 10" (1.78 m)	175 lb (79 kg)	1999-07-09	Santa Monica, California	Topeka (NAHL)	—
9		Luke Erickson	Freshman	D	6' 2" (1.88 m)	210 lb (95 kg)	1999-04-15	Woodbury, Minnesota	Fairbanks (NAHL)	—
10		David Jankowski	Junior	F	6' 1" (1.85 m)	175 lb (79 kg)	1997-05-25	Waterdown, Ontario	Hawkesbury (CCHL)	—
12		Greg Lapointe	Freshman	F	5' 9" (1.75 m)	175 lb (79 kg)	2001-01-01	Granby, Quebec	Coquitlam (BCHL)	—
13		Aleksi Peltonen	Sophomore	F	5' 10" (1.78 m)	180 lb (82 kg)	1998-06-08	Helsinki, Finland	Omaha (USHL)	—
14		Justin Paul	Freshman	F	5' 11" (1.8 m)	188 lb (85 kg)	2000-04-10	Thunder Bay, Ontario	Wellington (OJHL)	—
15		Jacob Nielsen	Senior	F	6' 0" (1.83 m)	180 lb (82 kg)	1998-02-21	New Berlin, Wisconsin	Lincoln (USHL)	—
16		Nicholas Wildgoose	Sophomore	F	5' 10" (1.78 m)	185 lb (84 kg)	1999-12-07	Cary, North Carolina	Rockland (CCHL)	—
17		Reilly Moran	Freshman	F	5' 11" (1.8 m)	176 lb (80 kg)	2000-04-24	Hingham, Massachusetts	Powell River (BCHL)	—
18		Kaden Pickering	Junior	F	5' 9" (1.75 m)	180 lb (82 kg)	1998-12-17	Madrid, New York	Chilliwack (BCHL)	—
19		Max Dorrington	Freshman	F	6' 3" (1.91 m)	205 lb (93 kg)	2001-08-30	North Reading, Massachusetts	Cushing Academy (USHS–MA)	—
20		Nicholas Trela	Freshman	F	6' 2" (1.88 m)	185 lb (84 kg)	1999-08-26	Trenton, Michigan	Amarillo (NAHL)	—
21		Cameron Buhl	Sophomore	F	5' 10" (1.78 m)	184 lb (83 kg)	1998-12-03	South St. Paul, Minnesota	Minnesota Magicians (NAHL)	—
22		Jeff Clarke	Junior	D	6' 4" (1.93 m)	215 lb (98 kg)	1999-04-15	London, Ontario	Oakville (OJHL)	—
23		Ashton Fry	Sophomore	F	5' 11" (1.8 m)	185 lb (84 kg)	1998-07-16	Highlands Ranch, Colorado	Kemptville (CCHL)	—
24		Tucker McIntosh	Freshman	D	6' 1" (1.85 m)	175 lb (79 kg)	2001-05-20	Toronto, Ontario	Ottawa (CCHL)	—
27		Logan Ritchie	Freshman	F	5' 11" (1.8 m)	180 lb (82 kg)	1999-07-27	O'Fallon, Missouri	Kenai River (NAHL)	—
28		Callum Cusinato (C)	Senior	F	6' 2" (1.88 m)	205 lb (93 kg)	1998-09-29	Toronto, Ontario	Toronto Jr. Canadiens (OJHL)	—
29		Jordan Steinmetz	Sophomore	F	5' 8" (1.73 m)	160 lb (73 kg)	1999-01-10	Chippewa Falls, Wisconsin	Sioux City (USHL)	—
31		Francis Boisvert	Sophomore	G	6' 2" (1.88 m)	170 lb (77 kg)	1999-03-11	Blainville, Quebec	Ottawa (CCHL)	—
32		Philip Alftberg	Senior	D	5' 8" (1.73 m)	180 lb (82 kg)	1997-01-19	Märsta, Sweden	Fargo (USHL)	—
33		Tim Makowski	Sophomore	D	6' 1" (1.85 m)	195 lb (88 kg)	1998-11-14	St. Louis, Missouri	Aberdeen (NAHL)	—
35		Grant Adams	Freshman	G	6' 2" (1.88 m)	195 lb (88 kg)	2000-09-22	South Bend, Indiana	Salmon Arm (BCHL)	—
44		Jake Stevens	Senior	D	6' 2" (1.88 m)	205 lb (93 kg)	1996-12-06	Naperville, Illinois	Victoria (BCHL)	—

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USCHO did not release a poll in week 20.^[9]