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

The Raiders, led by seventh-year head coach Matt Langel, played their home games at Cotterell Court in Hamilton, New York as members of the Patriot League.

They defeated Lafayette and Holy Cross to advance to the championship game of the Patriot League tournament where they lost to Bucknell.

The Raiders finished the 2016–17 season 10–22, 8–10 in Patriot League play to finish in a tie for sixth place.

6 seed in the Patriot League Tournament, they lost in the quarterfinals to Lehigh.