Santiago Muñoz Machado (Pozoblanco, 10 January 1949) is a Spanish jurist and academic, director of the Royal Spanish Academy and the Association of Academies of the Spanish Language since 10 January 2019.

As a jurist, he specialized in administrative and constitutional rights.

He is also a member of the Royal Academy of Moral and Political Sciences and editor of the Diccionario del español jurídico (Dictionary of Spanish Judiciary) and the Diccionario panhispánico del español jurídico (Pan-Hispanic Dictionary of Spanish Judiciary).

He has also been the a member of the Superior Body of Civil Administrators of the State since 1973.

When the body was named the Civil Administration, he was President of the Government from 1973 to 1980.