The 1990–91 Creighton Bluejays men's basketball team represented Creighton University during the 1990–91 NCAA Division I men's basketball season.

The Bluejays, led by head coach Tony Barone, played their home games at the Omaha Civic Auditorium.

The Jays finished with a 24–8 record (12–4 MVC), and won the Missouri Valley Conference tournament[1] to earn an automatic bid to the 1991 NCAA tournament.

11 seed in the West region, the Jays knocked off No.

6 seed New Mexico State in the opening round,[2] then fell to Seton Hall in the second round.