1991 Missouri Valley Conference men's basketball tournament

The 1991 Missouri Valley Conference men's basketball tournament was played after the conclusion of the 1990–1991 regular season at Kiel Auditorium in St. Louis, Missouri.

The Creighton Bluejays defeated the in the championship game, 68-52, and as a result won their 4th MVC Tournament title and earned an automatic bid to the 1991 NCAA tournament.