1999–2000 Idaho Vandals men's basketball team

The 1999–2000 Idaho Vandals men's basketball team represented the University of Idaho during the 1999–2000 NCAA Division I men's basketball season. Members of the Big West Conference, the Vandals were led by third-year head coach David Farrar and played their home games on campus at the Kibbie Dome in Moscow, Idaho.

The Vandals were 12–16 overall in the regular season and 6–10 in conference play, tied for third in the East division standings.

They met West division champion Long Beach State in the first round of the conference tournament and lost by eleven points.

Postseason result
!colspan=6 style=| Big West tournament