The 2019–20 Arizona State Sun Devils men's basketball team represented Arizona State University during the 2019–20 NCAA Division I men's basketball season. The Sun Devils were led by fifth-year head coach Bobby Hurley, and played their home games at Desert Financial Arena in Tempe, Arizona as members of the Pac–12 Conference. They finished the season 20–11, 11–7 in Pac-12 play to finish in a tie for third place. They were set to take on Washington State in the quarterfinals of the Pac-12 tournament. However, the remainder of the tournament, and all other postseason tournaments, were cancelled amid the COVID-19 pandemic.