The 2019–20 Charleston Cougars men's basketball team represented the College of Charleston during the 2019–20 NCAA Division I men's basketball season.

The Cougars, led by fifth-year head coach Earl Grant, played their home games at the TD Arena in Charleston, South Carolina as members of the Colonial Athletic Association (CAA).

In a season limited due to the COVID-19 pandemic, the Cougars finished the season 9–10, 6–4 CAA play, to finish in third place.

They lost in the quarterfinals of the CAA tournament to Drexel.

At the CAA tournament they defeated Drexel before losing to Northeastern in the semifinals.