The 2023 Big Sky Conference men's basketball tournament was the postseason tournament for the Big Sky Conference, held March 4–8 at Idaho Central Arena in Boise, Idaho. It was the 48th edition of the conference tourney, which debuted in 1976. Formerly concluding on Saturday, this year's edition moved to an earlier schedule, with the championship on Wednesday night.

Second-seeded Montana State defeated ninth seed Northern Arizona 85–78 in the final and received the conference's automatic bid to the NCAA tournament. The Bobcats successfully defended their conference tournament title and earned a second straight NCAA appearance, their fifth overall.

Finalist NAU upset top-seeded Eastern Washington by a point in the quarterfinals and fourth seed Montana by twelve in the semifinals. The other semifinal was rematch of the previous year, with a similar result; this time, MSU needed double overtime to eliminate third seed Weber State 60–58. In 2022, they outlasted the Wildcats by three points in regulation.

Seeds The ten teams were seeded by conference record; the top six teams received a first-round bye. SeedSchoolRecordTiebreaker1 Eastern Washington16–2 rowspan=10 2 Montana State15–33 Weber State12–64 Montana10–75 Idaho State8–106 Sacramento State7–117 Portland State6–118 Northern Colorado6–129 Northern Arizona5–1310 Idaho4–14

Schedule SessionGameTimeMatchupScoreTelevisionAttendanceFirst round – Saturday, March 4115:30 pmNo. 9 Northern Arizona vs. No. 10 Idaho87–79ESPN+28:00 pmNo. 7 Portland State vs. No. 8 Northern Colorado80–84Quarterfinals – Sunday, March 5235:30 pmNo. 1 Eastern Washington vs. No. 9 Northern Arizona80–81ESPN+48:00 pmNo. 2 Montana State vs. No. 8 Northern Colorado84–73Quarterfinals – Monday, March 6355:30 pmNo. 4 Montana vs. No. 5 Idaho State83–74ESPN+68:00 pmNo. 3 Weber State vs. No. 6 Sacramento State70–64Semifinals – Tuesday, March 7476:30 pmNo. 9 Northern Arizona vs. No. 4 Montana83–71ESPNU89:00 pmNo. 2 Montana State vs. No. 3 Weber State60–58 2OTESPN2Championship game – Wednesday, March 8599:30 pmNo. 2 Montana State vs. No. 9 Northern Arizona85–78ESPN2 Game times are in Mountain time; rankings denote tournament seeding.

Bracket

Note: * denotes overtime

References

See also 2023 Big Sky Conference women's basketball tournament