The 2023–24 BYU Cougars men's basketball team represented Brigham Young University during the 2023–24 NCAA Division I men's basketball season.

The Cougars were led by fifth-year head coach Mark Pope and played their home games at Marriott Center in Provo, Utah as first-year members of the Big 12 Conference.

5 seed in the Big 12 tournament, they defeated UCF in the second round before losing to Texas Tech.

[2] The BYU Cougars men's basketball team drew an average home attendance of 15,689 in 18 games in 2023-24.

5 seed in the WCC tournament, they defeated Portland in the second round, Loyola Marymount in the quarterfinals before losing to Saint Mary's in the semifinals.