The 2020–21 BYU Cougars men's basketball team represented Brigham Young University in the 2020–21 NCAA Division I men's basketball season. It was head coach Mark Pope's second season as BYU's head coach and the Cougars tenth season as members of the West Coast Conference (WCC). The Cougars played their home games at the Marriott Center in Provo, Utah. They finished the season 20-7, 10-3 in WCC Play to finish in 2nd place. They beat Pepperdine in the semifinals of the WCC tournament before losing in the championship game to Gonzaga. They received an at-large bid to the NCAA tournament where they lost in the First Round to UCLA.