TD Systems Baskonia was the defending champion which got knocked out by Valencia Basket in the quarterfinals.
Barça swept the series and completed its first Spanish double (League and Cup titles) since 2011.
On May 4, 2021, ACB delayed the regular season ending calendar one week to play the postponed matches.
[1] With Barça's already qualified to the EuroLeague Final Four in Cologne, the playoffs will be played in best-of-three, instead of best-of-five as usual.
This was the first meeting in the playoffs between Lenovo Tenerife and Hereda San Pablo Burgos.