The 2019–20 Pepperdine Waves men's basketball team represented Pepperdine University during the 2019–20 NCAA Division I men's basketball season.

The Waves were led by head coach Lorenzo Romar, in the second season of his second stint after coaching the Waves from 1996 to 1999.

They played their home games at the Firestone Fieldhouse in Malibu, California as members of the West Coast Conference.

They defeated Santa Clara in the second round of the WCC tournament before losing in the third round to Saint Mary's.

They defeated Pacific, Loyola Marymount, and San Francisco to advance to the semifinals of the WCC tournament where they were defeated by Gonzaga.