The Asociación de Clubs de Baloncesto (ACB) is a Spanish sport organisation made up of professional basketball clubs and they are in charge of safeguarding the interests of their associates.

It was created in 1982 and since 1983 it has organised the ACB basketball league. It is headquartered in Barcelona and since 1990 it has been presided over by Eduard Portela himself. Furthermore, in 1991, it promoted the creation of the European Basketball League Union (ULEB).

Lliga ACB has been called Liga Endesa since the 2011-2012 season for sponsorship reasons.