The 1986–87 Oregon State Beavers men's basketball team represented Oregon State University in Corvallis, Oregon in the 1986–87 season.
Led by Ralph Miller, in his 17th season at Oregon State, the Beavers would finish with a record of 19–11 (10–8 Pac-10).
The Beavers were invited to the 1987 NIT, where they lost in the second round to Cal.
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