The 2015–16 Idaho Vandals men's basketball team represented the University of Idaho during the 2015–16 NCAA Division I men's basketball season.

The Vandals, led by eighth year head coach Don Verlin, played their home games at the Cowan Spectrum, with a few early season games at Memorial Gym, and were members of the Big Sky Conference.

They defeated Eastern Washington in the quarterfinals of the Big Sky tournament to advance to the semifinals where they lost to Montana.

The Vandals finished the 2014–15 season 13–17, 8–10 in Big Sky play to finish in a tie for seventh place.

They lost in the quarterfinals of the Big Sky tournament to Eastern Washington.