| 1983–84 FIBA Korać Cup | |
| League: | FIBA Korać Cup |
| Sport: | Basketball |
| Finals: | Final |
| Finals Link: | 1983–84 FIBA Korać Cup Final |
| Finals Champ: |  Orthez |
| Finals Runner-Up: | Crvena zvezda |
| Seasonslistnames: | FIBA Korać Cup |
| Prevseason Link: | 1982–83 FIBA Korać Cup |
| Prevseason Year: | 1982–83 |
| Nextseason Year: | 1984–85 |
| Nextseason Link: | 1984–85 FIBA Korać Cup |
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.
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| Top place in each group advance to semifinals |
Group A
| Group B
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Group C
| Group D
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March 15, Palais des sports Pierre-de-Coubertin, Paris|}
