The 2021–22 Washington State Cougars men's basketball team represented Washington State University during the 2021–22 NCAA Division I men's basketball season.

The team was led by third-year head coach Kyle Smith.

The Cougars played their home games at the Beasley Coliseum in Pullman, Washington as members in the Pac-12 Conference.

The Cougars finished the 2019–20 season 14–13, 7–12 in Pac-12 play to finish in 10th place.

They lost in the first round to Arizona State of the Pac-12 tournament.