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

The Catamounts, led by third-year head coach Mark Prosser, played their home games at the Ramsey Center in Cullowhee, North Carolina, as members of the Southern Conference.

They were defeated by The Citadel in the first round of the Southern Conference tournament.

The Catamounts finished the 2019–20 season 19–12, 10–8 in Southern Conference play to finish in a tie for fifth place.

They defeated Mercer in the quarterfinals of the Southern Conference tournament before losing in the semifinals to East Tennessee State.