1984–85 Boise State Broncos men's basketball team

The 1984–85 Boise State Broncos men's basketball team represented Boise State University during the 1984–85 NCAA Division I men's basketball season. The Broncos were led by second-year head coach Bobby Dye and played their home games on campus at the BSU Pavilion in Boise, Idaho.

They finished the regular season at 15–12 overall, with a 5–9 record in the Big Sky Conference, tied for sixth in the standings. In the conference tournament at home in Boise, the seventh-seeded Broncos upset second seed Montana by thirteen points in the last quarterfinal. In the semifinal, Boise State lost by three points to sixth-seeded Idaho State.

This was the tenth year of the Big Sky tourney, and the first time that BSU had hosted; the first eight editions were four-team events, hosted by the regular season champion. The Broncos won the first in 1976.

Postseason results
!colspan=6 style=| Big Sky tournament