The 2015–16 Oregon State Beavers men's basketball team represented Oregon State University in the 2015–16 NCAA Division I men's basketball season.

The Beavers were led by second-year head coach Wayne Tinkle, and played their home games at Gill Coliseum in Corvallis, Oregon as members of the Pac-12 Conference.

They defeated Arizona State in the first round of the Pac-12 tournament before losing to California in the quarterfinals.

OSU received an at-large bid to the NCAA tournament as the No.

7 seed in the West Region, marking the Beavers' first NCAA Tournament appearance since 1990.