The General Council of the Judiciary is the national council of the judiciary of Spain. It is the constitutional body that governs all the Judiciary of Spain, such as courts, and judges, as it is established by the Spanish Constitution of 1978, article 122 and developed by the Organic Law 6/1985 of the Judicial Power (LOPJ). The President of the CGJP is also the president of the Supreme Court.

The Constitutional Court is the supreme interpreter of the Spanish Constitution, with the power to determine the constitutionality of acts and statutes made by any public body, central, regional, or local in Spain. It is defined in Part IX of the Constitution of Spain, and further governed by Organic Laws 2/1979, 8/1984, 4/1985, 6/1988, 7/1999 and 1/2000. The court is the "supreme interpreter" of the Constitution, but since the court is not a part of the Spanish Judiciary, the Supreme Court is the highest court for all judicial matters.