The 2020–21 Sacred Heart Pioneers men's ice hockey season was the 28th season of play for the program, the 23rd at the Division I level, and the 18th season in the Atlantic Hockey conference. The Pioneers represented Sacred Heart University and were coached by C. J. Marottolo, in his 12th season.

The start of the college hockey season was delayed due to the ongoing coronavirus pandemic. As a result, Sacred Heart's first scheduled game was in late-November as opposed to early-October, which was the norm.

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 Sacred Heart'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]

Coming off of the best season in the history of the program, Sacred Heart saw a bit of a decline. The team finished 6–10–2 but the record does not reflect the difficulties that the team faced during the season. The Pioneers were not alone in suffering through COVID-related cancellations, but Sacred Heart saw their opposition increase in difficulty as a result. Many of their cancelled games were against weaker teams and the Pioneers added a set of games with Quinnipiac, a team that was ranked throughout the season. Additionally, Sacred Heart played Army (another ranked team) six times during the season, a full third of their games. While SHU kept most of those matches close they did lose to the Black Knights 5 times during the season, which accounts for half of the team's losses. It would be difficult to come away with any conclusions about Sacred Heart's season other than the team had to weather several storms during the year.

As of September 15, 2020^[update].^[3]

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

No.	S/P/C	Player	Class	Pos	Height	Weight	DoB	Hometown	Previous team	NHL rights
3		Grant Anderson	Freshman	D	6' 2" (1.88 m)	187 lb (85 kg)	1999-09-15	Plymouth, Minnesota	Omaha (USHL)	—
4		Jeppe Urup Morgensen	Sophomore	D	6' 2" (1.88 m)	176 lb (80 kg)	1999-03-14	Odense, Denmark	Youngstown (USHL)	—
5		Andrius Kulbis	Freshman	D	6' 1" (1.85 m)	175 lb (79 kg)	2000-02-16	Methuen, Massachusetts	Maine (NAHL)	—
6		Max Luukko (A)	Senior	D	6' 3" (1.91 m)	190 lb (86 kg)	1995-12-28	Avalon, New Jersey	Philadelphia (USPHL)	—
7		Daniel Petrick	Sophomore	D	5' 9" (1.75 m)	199 lb (90 kg)	1999-04-06	Wilbraham, Massachusetts	Madison (USHL)	—
8		Tim Clifton	Sophomore	F	5' 10" (1.78 m)	165 lb (75 kg)	1998-02-23	Farmingdale, New Jersey	Shreveport (NAHL)	—
9		John Jaworski	Freshman	F	5' 10" (1.78 m)	165 lb (75 kg)	2000-03-20	Grinnell, Iowa	Chicago (USHL)	—
10		Alex Bates (A)	Senior	D	5' 11" (1.8 m)	175 lb (79 kg)	1997-06-17	Parker, Colorado	Wenatchee (BCHL)	—
11		Ryan Steele	Junior	F	6' 1" (1.85 m)	182 lb (83 kg)	1997-09-13	Stratford, Prince Edward Island	West Kelowna (BCHL)	—
12		Kevin Lombardi	Sophomore	F	6' 4" (1.93 m)	234 lb (106 kg)	1998-08-12	Schwenksville, Pennsylvania	Sioux City (USHL)	—
13		Cody Hoban	Freshman	F	5' 9" (1.75 m)	165 lb (75 kg)	2001-04-26	Guilford, Connecticut	Danbury (NAHL)	—
14		Nick Boyagian	Junior	F	6' 2" (1.88 m)	181 lb (82 kg)	1997-07-16	East Greenbush, New York	New Jersey (NAHL)	—
15		Evan Wisocky	Senior	F	5' 10" (1.78 m)	195 lb (88 kg)	1998-03-20	Hoboken, New Jersey	Connecticut (HEA)	—
16		Marcus Joseph	Junior	D	5' 9" (1.75 m)	180 lb (82 kg)	1997-05-08	Mountain Top, Pennsylvania	Nanaimo (BCHL)	—
17		Emil Öhrvall	Junior	F	5' 11" (1.8 m)	170 lb (77 kg)	1998-06-10	Växjö, Sweden	Michigan (Big Ten)	—
18		Michael Gilroy	Senior	D	6' 3" (1.91 m)	205 lb (93 kg)	1996-10-10	North Bellmore, New York	P. A. L. (USPHL)	—
19		Ryan Doolin	Freshman	F	6' 2" (1.88 m)	190 lb (86 kg)	1999-02-06	Hanover, Massachusetts	Alberni Valley (BCHL)	—
20		Adam Tisdale	Junior	F	5' 9" (1.75 m)	171 lb (78 kg)	1998-11-09	Cochrane, Alberta	Clarkson (ECAC)	—
21		Josh Allan	Senior	D	5' 10" (1.78 m)	200 lb (91 kg)	1997-05-02	Orillia, Ontario	Trenton (OJHL)	—
22		Derek Contessa	Sophomore	F	6' 0" (1.83 m)	206 lb (93 kg)	1999-03-03	Freehold, New Jersey	Dubuque (USHL)	—
23		Braeden Tuck	Sophomore	F	6' 0" (1.83 m)	183 lb (83 kg)	1998-04-15	Calgary, Alberta	Trail (BCHL)	—
24		Austin Magera	Junior	F	6' 1" (1.85 m)	185 lb (84 kg)	1998-07-19	Suwanee, Georgia	Lincoln (USHL)	—
25		Carson Gallagher	Freshman	F	6' 0" (1.83 m)	174 lb (79 kg)	1999-08-04	Courtice, Ontario	Johnstown (NAHL)	—
26		Marc Johnstone (C)	Senior	F	6' 0" (1.83 m)	180 lb (82 kg)	1996-06-19	Cranford, New Jersey	Chicago (USHL)	—
27		Patrick Dawson	Sophomore	D	6' 0" (1.83 m)	190 lb (86 kg)	1999-01-14	Medway, Massachusetts	Odessa (NAHL)	—
28		Marcel Godbout	Senior	F	5' 9" (1.75 m)	190 lb (86 kg)	1996-06-04	St. Clair Shores, Michigan	Sioux City (NAHL)	—
29		Todd Goehring	Junior	F	5' 11" (1.8 m)	175 lb (79 kg)	1997-07-08	Wayside, New Jersey	Chicago (USHL)	—
30		Josh Benson	Junior	G	6' 1" (1.85 m)	190 lb (86 kg)	1997-11-04	Stillwater, Minnesota	Fairbanks (NAHL)	—
31		David Tomeo	Freshman	G	6' 1" (1.85 m)	180 lb (82 kg)	1999-03-02	West Caldwell, New Jersey	Johnstown (NAHL)	—
33		Luke Lush	Sophomore	G	6' 2" (1.88 m)	194 lb (88 kg)	1998-02-15	Sherwood Park, Alberta	Drayton Valley (AJHL)	—

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USCHO did not release a poll in week 20.^[6]