The 1988–89 Oregon State Beavers men's basketball team represented Oregon State University in Corvallis, Oregon, during the 1988–89 season.

Led by Ralph Miller, in his 19th and final season at Oregon State, and point guard Gary Payton, the Beavers finished at 22–8 (13–5 Pac-10, third). In the Pac-10 tournament, they lost in the semifinals to top-ranked Arizona. Seeded sixth in the West regional of the NCAA tournament, Oregon State was upset in overtime in the first round in Tucson by Evansville.

Roster

Schedule and results

!colspan=12 style=| Non-conference regular season

!colspan=12 style=| Pac-10 regular season

!colspan=12 style=| Non-conference regular season

!colspan=12 style=| Non-conference regular season

!colspan=12 style=| Pac-10 regular season

!colspan=12 style=| Pac-10 tournament

!colspan=12 style=| NCAA tournament

Sources

Awards and honors Gary Payton – AP All-American (Honorable Mention) Ralph Miller – co-Pac-10 Coach of the Year

References