The 2021–22 Dartmouth Big Green Men's ice hockey season was the 115th season of play for the program and the 60th season in the ECAC Hockey conference. The Big Green represented the Dartmouth College and were coached by Reid Cashman, in his 1st season as head coach.

Dartmouth returned to the ice after their previous season was cancelled due to the COVID-19 pandemic. The Big Green began the year with a decent stretch, opening 2–3 with two of their losses coming against ranked teams. After a serviceable start, went winless in 6 consecutive games and ended the first half of their season near the bottom of the conference standings.

After Christmas, Dartmouth opened their annual in-season tournament with a win over in-state rival New Hampshire. Unfortunately for the Big Green, the team would not record another victory for a month and a half. The biggest problem for Dartmouth was a lack of offense that continued for most of the season. The goaltending they received during the stretch gave Dartmouth several chances to win but the team's scoring rarely made an appearance.

Near the end of the season, Dartmouth put together a few wins that just put them above Yale and prevented the Greens from finishing last in ECAC Hockey. That set them up for a showdown with Rensselaer in the conference tournament. When the team won its first match, it appeared that they may have accidentally found a way to extend their season. However, Dartmouth got into penalty trouble in the next two games, surrendering five power play goals, and lost both matches to end their year.

As of August 19, 2021.^[1]

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

No.	S/P/C	Player	Class	Pos	Height	Weight	DoB	Hometown	Previous team	NHL rights
2		Harrison Markell (C)	Senior	D	6' 1" (1.85 m)	185 lb (84 kg)	1997-02-12	Andover, Massachusetts	Boston Jr. Bruins (NCDC)	—
3		Dylan Witzke	Freshman	D	5' 10" (1.78 m)	165 lb (75 kg)	2002-01-01	Calgary, Alberta	Whitecourt (AJHL)	—
4		Tyler Borsch	Sophomore	D	6' 0" (1.83 m)	185 lb (84 kg)	2000-03-27	Maple Grove, Minnesota	St. Cloud (NAHL)	—
5		Brock Paul	Junior	D	6' 3" (1.91 m)	205 lb (93 kg)	1999-11-10	Carmel, Indiana	Waterloo (USHL)	—
6		Tanner Palocsik	Junior	D	5' 11" (1.8 m)	190 lb (86 kg)	1999-05-26	Aliquippa, Pennsylvania	Jersey (NCDC)	—
7		Jack Cameron	Junior	D	6' 3" (1.91 m)	190 lb (86 kg)	1999-04-18	Halifax, Nova Scotia	Coquitlam (BCHL)	—
8		Joey Musa	Sophomore	F	5' 9" (1.75 m)	160 lb (73 kg)	2000-06-11	Orange Park, Florida	Langley (BCHL)	—
9		Ryan Lovett	Sophomore	F	6' 2" (1.88 m)	200 lb (91 kg)	1999-07-06	Franklin, Massachusetts	Boston Jr. Bruins (NCDC)	—
10		Ryan Sorkin	Sophomore	F	5' 10" (1.78 m)	175 lb (79 kg)	2001-06-13	Chicago, Illinois	Lone Star (NAHL)	—
11		Mark Gallant	Junior	F	6' 0" (1.83 m)	185 lb (84 kg)	2000-05-01	Concord, Massachusetts	Islanders (NCDC)	—
12		Nick Unruh	Sophomore	F	6' 3" (1.91 m)	205 lb (93 kg)	2000-04-03	Fort McMurray, Alberta	Salmon Arm (BCHL)	—
14		Steven Townley	Freshman	F	6' 2" (1.88 m)	205 lb (93 kg)	2000-06-13	Quechee, Vermont	Jersey (NCDC)	—
15		Sean Chisholm	Freshman	F	6' 1" (1.85 m)	190 lb (86 kg)	2001-01-26	Caledonia, Ontario	Brooks (AJHL)	—
16		Tyler Campbell	Junior	F	5' 9" (1.75 m)	170 lb (77 kg)	1999-10-01	Winnipeg, Manitoba	Brooks (AJHL)	—
17		Braiden Dorfman	Freshman	F	6' 1" (1.85 m)	185 lb (84 kg)	2000-08-09	Nashville, Tennessee	Shreveport (NAHL)	—
18		Josh Waters	Sophomore	F	5' 11" (1.8 m)	175 lb (79 kg)	2000-01-23	Collegeville, Pennsylvania	Maryland (NAHL)	—
20		Erik Urbank	Senior	F	6' 2" (1.88 m)	195 lb (88 kg)	1999-03-28	Orchard Park, New York	Chicago (USHL)	—
21		Matt Hubbarde	Freshman	F	6' 1" (1.85 m)	195 lb (88 kg)	2000-04-15	Pickering, Ontario	Langley (BCHL)	—
22		Sam Hesler	Senior	F	6' 1" (1.85 m)	190 lb (86 kg)	1998-06-06	Boxborough, Massachusetts	Wenatchee (BCHL)	—
23		Ian Pierce	Freshman	D	5' 10" (1.78 m)	190 lb (86 kg)	2001-01-24	Edgewater, New Jersey	Dubuque (USHL)	—
25		Nate Morgan	Freshman	F	5' 10" (1.78 m)	190 lb (86 kg)	2002-02-08	Calgary, Alberta	Salmon Arm (BCHL)	—
26		Jeff Losurdo	Senior	F	6' 0" (1.83 m)	185 lb (84 kg)	1998-03-09	Elmhurst, Illinois	Jersey (NCDC)	—
27		Trym Løkkeberg	Freshman	F	6' 2" (1.88 m)	210 lb (95 kg)	2001-07-23	Fredrikstad, Norway	Mora J20 (J20 Nationell)	—
28		Brady MacDonald	Freshman	D	6' 4" (1.93 m)	190 lb (86 kg)	2000-01-24	Union, Ontario	Victoria (BCHL)	—
29		Sean Keohan	Junior	D	5' 11" (1.8 m)	180 lb (82 kg)	1999-02-09	Milton, Massachusetts	Boston Jr. Bruins (NCDC)	—
30		Troy Burkhart	Junior	G	6' 1" (1.85 m)	170 lb (77 kg)	2001-03-20	Tampa, Florida	Plant (USHS–FL)	—
31		Justin Ferguson	Senior	G	6' 2" (1.88 m)	165 lb (75 kg)	1997-08-06	Hudson, New Hampshire	Islanders (NCDC)	—
35		Clay Stevenson	Sophomore	G	6' 4" (1.93 m)	195 lb (88 kg)	1999-03-03	Port Coquitlam, British Columbia	Coquitlam (BCHL)	—

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Note: USCHO did not release a poll in week 24.^[4]