The Supercopa de España de Baloncesto 2011 was the 8th edition of this tournament. It was also called Supercopa Endesa for sponsorship reasons.
It was played on September 30 and October 1 in the Bilbao Arena in Bilbao. Regal FC Barcelona was the defending champion and managed to defend their title.
The draw of the semifinals was on September 13.[1]
| Team | Qualification | Participation |
|---|---|---|
| Regal FC Barcelona | 2011 Copa del Rey and 2010–11 ACB champion | 7th |
| Real Madrid | Euroleague 2010–11 Final Four participant | 6th |
| Bizkaia Bilbao Basket | Host team and 2010-11 ACB runner-up | 2nd |
| Caja Laboral | Best coefficient of last season[2] | 8th |