The 2018–19 Harvard Crimson men's basketball team represented Harvard University in the 2018–19 NCAA Division I men's basketball season. They played their home games at the Lavietes Pavilion in Boston, Massachusetts and were led by 12th-year head coach Tommy Amaker. They finished the season 19-12, 10-4 to tie for first place. As the No. 1 seed in the Ivy Tournament, they defeated Penn in the semifinals before losing to Yale in the final. They received an automatic bid to the NIT where they defeated Georgetown in the first round before losing in the second round to NC State.