The 2019–20 Loyola Marymount Lions men's basketball team represented Loyola Marymount University during the 2019–20 NCAA Division I men's basketball season.

The Lions were led by sixth-year head coach Mike Dunlap.

They played their home games at Gersten Pavilion in Los Angeles, California as members of the West Coast Conference.

On March 8, 2020, head coach Mike Dunlap was fired.

[4] They were invited to the CBI where they defeated California Baptist and Brown before losing to South Florida in the quarterfinals.