2018 Supercopa de España de Baloncesto
The 2018 Supercopa de España de Baloncesto was the 15th edition of the tournament since it is organized by the ACB and the 19th overall. It was also called Supercopa Endesa for sponsorship reasons. It was played in the Multiusos Fontes do Sar in Santiago de Compostela in September 2018. Valencia Basket was the defending champion, but did not qualify for the competition.
All times were in Central European Summer Time ''.
Participant teams and draw
On 8 June 2018, the ACB confirmed Santiago de Compostela to host the tournament.The semifinals were drawn on 12 September 2018, in which Real Madrid and Barça Lassa were seeded teams, given their status as Liga Endesa and Copa del Rey champions, respectively.
| Team | Qualified as | Appearance |
| Monbus Obradoiro | Host team | 1st |
| Barça Lassa | Copa del Rey champion | 14th |
| Real Madrid | Liga Endesa champion | 16th |
| Kirolbet Baskonia | Liga Endesa runner-up | 13th |
Semifinals
FC Barcelona Lassa">FC Barcelona Bàsquet">FC Barcelona Lassa vs. Kirolbet Baskonia">Saski Baskonia">Kirolbet Baskonia
Monbus Obradoiro">Obradoiro CAB">Monbus Obradoiro vs. Real Madrid">Real Madrid Baloncesto">Real Madrid
Final
| 2018 Supercopa Endesa champions |
| Real Madrid 5th title |