The 2018–19 South Carolina Gamecocks men's basketball team represented the University of South Carolina during the 2018–19 NCAA Division I men's basketball season.

The team's head coach, Frank Martin, was in his seventh season at South Carolina.

The team played its home games at Colonial Life Arena in Columbia, South Carolina as a member of the Southeastern Conference.

They lost in the quarterfinals of the SEC tournament to Auburn.

They defeated Ole Miss in the first round of the SEC tournament before losing in the second round to Arkansas.