1987–88 Idaho Vandals men's basketball team

The 1987–88 Idaho Vandals men's basketball team represented the University of Idaho during the 1987–88 NCAA Division I men's basketball season. Members of the Big Sky Conference, the Vandals were led by second-year head coach Tim Floyd and played their home games on campus at the Kibbie Dome in Moscow, Idaho.

The Vandals were 19–10 overall in the regular season and 11–5 in conference play, runner-up in the standings. At the conference tournament in Bozeman, Montana, the Vandals earned a bye into the semifinals, but lost to host Montana State for the second time in a week.

After the season in late April, Floyd left for New Orleans and assistant Kermit Davis was promoted to head coach.

Postseason result
!colspan=6 style=| Non-conference regular season

!colspan=6 style=| Big Sky tournament