The 2020–21 Coastal Carolina Chanticleers men's basketball team represented Coastal Carolina University in the 2020–21 NCAA Division I men's basketball season.

The Chanticleers, led by 14th-year head coach Cliff Ellis, played their home games at the HTC Center in Conway, South Carolina as members of the Sun Belt Conference.

They defeated Troy in the quarterfinals of the Sun Belt tournament before losing to Appalachian State in the semifinals.

[2] They received a bid to the College Basketball Invitational[3] where they defeated Bryant[4] and Stetson to advance to the CBI championship game.

They defeated UT Arlington[7] in the first round of the Sun Belt tournament before losing in the second round to Appalachian State.