It was won by POP 84, after they beat FC Barcelona Banca Catalana 70–65.

A feat previously achieved only by Rīgas ASK, who won the first three editions of the trophy.

The culminating 1991 FIBA European Champions Cup Final Four was held at Palais Omnisports de Paris-Bercy, Bercy, Paris, on 16–18 April 1991.

Toni Kukoč was named Final Four MVP for the second straight year.

April 16, Palais Omnisports de Paris-Bercy, Paris April 18, Palais Omnisports de Paris-Bercy, Paris April 18, Palais Omnisports de Paris-Bercy, Paris