1990–91 LSU Tigers basketball team

The 1990-91 LSU Tigers men's basketball team represented Louisiana State University during the 1990–91 NCAA men's college basketball season. The head coach was Dale Brown. The team was a member of the Southeastern Conference and played their home games at Pete Maravich Assembly Center.

Schedule and results
!colspan=9 style=| Non-conference regular season

!colspan=9 style=| SEC regular season

!colspan=12 style=| SEC Tournament

!colspan=12 style=| NCAA Tournament

Awards and honors

 * Shaquille O'Neal – SEC Player of the Year, Consensus First-team All-American