1990–91 FIBA Korać Cup

The 1990–91 FIBA Korać Cup was the 20th edition of FIBA's Korać Cup basketball competition. The Italian Shampoo Clear Cantu defeated the Spanish Real Madrid Otaysa in the final. This was Shampoo Clear Cantu's fourth time winning the title.

First round

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Round of 32

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Round of 16
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Group A

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Group B

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Group C

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Group D

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Quarterfinals

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Semifinals

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Finals

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 * After extra-time. Originally Real beat with 77–79