The Turkish Super League Professional Football Clubs Foundation (Turkish: Türkiye Süper Lig Profesyonel Futbol Kulüpleri Vakfı), commonly known as Union of Clubs (Turkish: Kulüpler Birliği), is a body representing the interests of professional association football clubs in Süper Lig. The organisation was founded in 2000. The organization became a member of the European Leagues in 2010 and the World Leagues Forum in 2019. The current president is Ertuğrul Doğan, who was elected to the post on 29 July 2025.
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