The 1982–83 Washington State Cougars men's basketball team represented Washington State University for the 1982–83 NCAA Division I men's basketball season. Led by eleventh-year head coach George Raveling, the Cougars were members of the Pacific-10 Conference and played their home games on campus at Beasley Coliseum in Pullman, Washington. The next opponent was the top seed in the West, #4 Virginia with center Ralph Sampson, who had a first-round bye. The Cougars stayed with the Cavaliers, but lost by five points.