The 1990–91 Virginia Cavaliers men's basketball team represented University of Virginia as a member of the Atlantic Coast Conference during the 1990–91 NCAA Division I men's basketball season.
The team was led by first-year head coach Jeff Jones.
The Cavaliers earned an at-large bid to the NCAA tournament as #7 seed in the West region.
They were defeated in the opening round by BYU, 61–48.
The Cavaliers finished with a record of 21–12 (6–8 ACC).