Club de Ajedrez Sestao (Sestao Xake Taldea) is a chess club and tournament organizer based in Sestao, Bizkaia, Basque Country, Spain. It is one of the strongest and most visible clubs in Spanish team chess. In addition, it combines elite competition with active local chess promotion and training.

The club organizes a broad range of activities, including FIDE-rated tournament events, classical chess, rapid, blitz, and chess school activity. It is especially known for the Open Sestao Basque Country, a major open chess tournament that has helped raise the club’s international profile. Moreover, the club has earned repeated national recognition through top-level team competition and strong results in Spanish chess.

Over the years, Club de Ajedrez Sestao has built a reputation for ambitious organization and competitive excellence. Furthermore, it supports chess development in its community while remaining highly active on the Spanish tournament circuit. As a result, it stands out as a leading chess organizer in the Basque Country.