Francisco Marín Castán (born 10 November 1952 in Segovia) a Spanish retired judge who served as acting president of the Supreme Court from 2022 to 2024.
He was the magistrate of the Civil Chamber of the High Court in 2000, and the Corresponding academic of the Royal Academy of Jurisprudence and Legislation in 2008.
He assumed the office in February 2014 after Juan Antonio Xiol Ríos.
He was also acting President of the Supreme Court from October 2022 to September 2024 and acting Vice President of the Supreme Court from June 2020 to October 2024.
He is a member of the Francisco de Vitoria Association of Judges and Magistrates which he previously served as acting president of the aforementioned Supreme Court.