The 1999–2000 FIBA Korać Cup was the 29th edition of FIBA's Korać Cup basketball competition.

The French Limoges CSP defeated the Spanish Unicaja in the final.

This was Limoges' third time winning the title following victories in 1982 and 1983.

For the 1999–2000 FIBA Korać Cup, the countries are allocated places according to their place on the FIBA country rankings, which takes into account their performance in European competitions from 1996–97 to 1998–99.

[1] The labels in the parentheses show how each team qualified for the place of its starting round: Sources:[4][5]