The 2020–21 LSU Tigers basketball team represented Louisiana State University during the 2020–21 NCAA Division I men's basketball season. The team's head coach was Will Wade, in his fourth season at LSU. They played their home games at the Pete Maravich Assembly Center in Baton Rouge, Louisiana, as a member of the Southeastern Conference. They finished the season 19-10, 11-6 in SEC Play to finish in 3rd place. They defeated Ole Miss and Arkansas to advance to the championship game of the SEC tournament where they lost to Alabama. They received an at-large bid to the NCAA tournament where they defeated St. Bonaventure in the First Round before losing in the Second Round to Michigan.