The 2017–18 Harvard Crimson men's basketball team represented Harvard University during the 2017–18 NCAA Division I men's basketball season.

The Crimson, led by 11th-year head coach Tommy Amaker, played their home games at Lavietes Pavilion in Boston, Massachusetts as members of the Ivy League.

1 seed in the Ivy League tournament, they defeated Cornell in the semifinals before losing to Penn in the championship game.

They lost in the semifinals of the inaugural Ivy League tournament to Yale.

Sources: Sources: Roster The team earned a share of the 2017–18 Ivy League men's basketball season regular season title.