The 2017–18 Loyola Marymount Lions men's basketball team represented Loyola Marymount University during the 2017–18 NCAA Division I men's basketball season.

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

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

They defeated Portland in the first round of the WCC tournament before losing in the quarterfinals to Gonzaga.

They lost in the quarterfinals of the WCC tournament to BYU.