1991 CAA men's basketball tournament

The 1991 Colonial Athletic Association men's basketball tournament was held March 2–4 at the Richmond Coliseum in Richmond, Virginia.

Richmond defeated fourth-seeded in the championship game, 81–78, to win their fourth (and second consecutive) CAA men's basketball tournament. The Spiders, therefore, earned an automatic bid to the 1991 NCAA tournament, where they advanced to the Second Round after upsetting Syracuse.