The 2017–18 Colorado Buffaloes men's basketball team represented the University of Colorado in the 2017–18 NCAA Division I men's basketball season.

They were led by head coach Tad Boyle in his eighth season at Colorado.

The Buffaloes played their home games at Coors Events Center in Boulder, Colorado as members of the Pac-12 Conference.

They defeated Arizona State in the first round of the Pac-12 tournament before losing in the quarterfinals to Arizona.

They defeated Washington State in the first round of the Pac-12 tournament to advance to the quarterfinals where they lost to Arizona.