The 1983–84 FIBA Korać Cup was the 13th edition of FIBA's Korać Cup basketball competition.

The French Orthez defeated the Yugoslav Crvena zvezda in the final on March 15, 1984, in Paris, France.

This was the third consecutive year in which a French team defeated a Yugoslav team in the final, and the third French victory overall.

*İTÜ and Olympiacos withdrew before the first leg, and their rivals received a forfeit (2–0) in both games.

March 15, Palais des sports Pierre-de-Coubertin, Paris