The 2019–20 Washington State Cougars men's basketball team represented Washington State University during the 2019–20 NCAA Division I men's basketball season. The team was led by first-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. They finished the season 16–16, 6–12 in Pac-12 play to finish in 11th place. They defeated Colorado in the first round of the Pac-12 tournament and were set to face Arizona State in the quarterfinals before the remainder of the Pac-12 Tournament was cancelled amid the COVID-19 pandemic. On March 12, all other conference tournaments and postseason tournaments were cancelled, making the Cougars win over Colorado on March 11 the final game to be completed in the 201