2021 Mountain West Conference men's basketball tournament

The 2021 Mountain West Conference men's basketball tournament was the postseason men's basketball tournament for the Mountain West Conference. It was held on March 10–13, 2021 at the Thomas & Mack Center on the campus of University of Nevada, Las Vegas, in Las Vegas, Nevada. The tournament champion, San Diego State, received the Mountain West's automatic bid to the NCAA tournament.

2021 Mountain West Conference men's basketball tournament
Classification	Division I
Season	2020–21
Teams	11
Site	Thomas & Mack Center Paradise, Nevada
Champions	San Diego State (6th title)
Winning coach	Brian Dutcher (2nd title)
MVP	Matt Mitchell (San Diego State)
Television	Stadium/MWN, CBSSN, CBS
Mountain West Conference men's basketball tournaments

2020–21 Mountain West Conference
men's basketball standings

	Conf							Overall
Team	W		L		PCT			W		L		PCT
No. 16 San Diego State†	14	–	3		.824			23	–	5		.821
Utah State	15	–	4		.789			20	–	9		.690
Colorado State	14	–	4		.778			20	–	8		.714
Boise State	14	–	6		.700			19	–	9		.679
Nevada	10	–	7		.588			16	–	10		.615
Fresno State	9	–	11		.450			12	–	12		.500
UNLV	8	–	10		.444			12	–	15		.444
Wyoming	7	–	9		.438			14	–	11		.560
San Jose State	3	–	13		.188			5	–	16		.238
Air Force	3	–	17		.150			5	–	20		.200
New Mexico	2	–	15		.118			6	–	16		.273
† Conference tournament winner Rankings from AP poll

Seeds

All 11 MW schools were eligible to participate in the tournament. Teams were seeded by conference record with a tiebreaker system to seed teams with identical percentages. The top five teams received byes into the tournament quarterfinals. The remaining teams played in the first round. Tie-breaking procedures remained unchanged from the 2020 tournament.

• Head-to-head record between the tied teams
• Record against the highest-seeded team not involved in the tie, going down through the seedings as necessary
• Higher NET

Seed	School	Conf	Tiebreaker(s)
1	San Diego State	14-3
2	Utah State	15–4
3	Colorado State	14–4
4	Boise State	14–6
5	Nevada	10–7
6	Fresno State	9–11
7	UNLV	8–10
8	Wyoming	7–9
9	San Jose State	3–13
10	Air Force	3–17
11	New Mexico	2–15

Schedule

Game	Time	Matchup	Score	Television	Attendance
First round – Wednesday, March 10
1	11:00 am	No. 8 Wyoming vs. No. 9 San Jose State	111–80	Stadium/MWN
2	1:30 pm	No. 7 UNLV vs. No. 10 Air Force	80–52
3	4:00 pm	No. 6 Fresno State vs. No. 11 New Mexico	85–77
Quarterfinals – Thursday, March 11
4	12:00 pm	No. 1 San Diego State vs. No. 8 Wyoming	69–66	CBSSN
5	2:30 pm	No. 4 Boise State vs. No. 5 Nevada	82–89
6	6:00 pm	No. 2 Utah State vs. No. 7 UNLV	74–53
7	8:30 pm	No. 3 Colorado State vs. No. 6 Fresno State	72–62
Semifinals – Friday, March 12
8	6:30 pm	No. 1 San Diego State vs. No. 5 Nevada	77–70	CBSSN
9	9:00 pm	No. 2 Utah State vs. No. 3 Colorado State	62–50
Championship – Saturday, March 13
10	3:00 pm	No. 1 San Diego State vs. No. 2 Utah State	68–57	CBS
Game times in PT. Rankings denote tournament seeding.

Bracket

	First round Wednesday, March 10 Stadium/MWN					Quarterfinals Thursday, March 11 CBSSN					Semifinals Friday, March 12 CBSSN					Championship Saturday, March 13 CBS
						1	#19 San Diego State	69
						8	Wyoming	66
	8	Wyoming	111
	9	San Jose State	80
											1	#19 San Diego State	77
											5	Nevada	70
						4	Boise State	82
						5	Nevada	89
																1	#19 San Diego State	68
																2	Utah State	57
						2	Utah State	74
						7	UNLV	53
	7	UNLV	80
	10	Air Force	52
											2	Utah State	62
											3	Colorado State	50
						3	Colorado State	72
						6	Fresno State	62
	6	Fresno State	85
	11	New Mexico	77

* denotes overtime period