The 2017–18 College of Charleston Cougars men's basketball team represented the College of Charleston during the 2017–18 NCAA Division I men's basketball season. The Cougars, led by fourth-year head coach Earl Grant, played their home games at the TD Arena in Charleston, South Carolina as members of the Colonial Athletic Association. They finished the season 26–8, 14–4 in CAA play to share the regular season title with Northeastern. At the CAA tournament they defeated Drexel, William & Mary, and Northeastern to become CAA Tournament champions. They earned the CAA's automatic bid to the NCAA tournament where they lost in the first round to Auburn.