The 2018–19 Tulane Green Wave men's basketball team represented Tulane University during the 2018–19 NCAA Division I men's basketball season.

The Green Wave, led by third-year head coach Mike Dunleavy Sr., played their home games at Devlin Fieldhouse in New Orleans, Louisiana as fifth-year members of the American Athletic Conference.

They lost in the first round of the AAC tournament to Memphis.

On March 16, 2019, Tulane announced Dunleavy would not return for the 2019–20 season.

The Green Wave 14–17, 5–13 in AAC play to finish in 10th place.