1986–87 Boise State Broncos men's basketball team

The 1986–87 Boise State Broncos men's basketball team represented Boise State University during the 1986–87 NCAA Division I men's basketball season. The Broncos were led by fourth-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 21–6 overall, with a 10–4 record in the Big Sky Conference, second in the standings. In the conference tournament in Flagstaff, Arizona, the second-seeded Broncos were upset by a point by eventual champion Idaho State in the quarterfinal round.

In the National Invitation Tournament, the Broncos hosted Utah of the WAC, and won by a point. At Seattle in the second round, BSU fell to Washington of the Pac-10 by five points.

The Broncos were led on the floor by sophomore point guard Chris Childs and junior forward Arnell Jones.

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

!colspan=6 style=| National Invitation tournament