1991 Big Sky Conference men's basketball tournament

1991 Big Sky Conference men's basketball tournament
ClassificationDivision I
Season1990–91
Teams6
SiteDahlberg Arena
Missoula, Montana
ChampionsMontana (1st title)
Winning coachStew Morrill (1st title)
MVPKevin Kearney (Montana)
1990–91 Big Sky men's basketball standings
Conf. Overall
Team W   L   PCT W   L   PCT
Montana 13 3   .813 23 8   .742
Nevada 12 4   .750 17 14   .548
Idaho 11 5   .688 19 11   .633
Boise State 10 6   .625 17 10   .630
Idaho State 7 9   .438 11 18   .379
Weber State 7 9   .438 12 16   .429
Montana State 6 10   .375 12 16   .429
Eastern Washington 5 11   .313 11 16   .407
Northern Arizona 1 15   .063 4 23   .148
Conference tournament winner

The 1991 Big Sky Conference men's basketball tournament was the sixteenth edition, held March 6–9 at Dahlberg Arena at the University of Montana in Missoula, Montana.

Top-seeded host Montana defeated two-time defending champion Idaho in the championship game, 76–68, to win their first Big Sky tournament title.