Pedro Antonio de Aragón (7 November 1611 – 1 September 1690) was a Spanish nobleman, military figure and politician who served under Kings Philip IV and Charles II of Spain. He was the brother of Cardinal Pascual de Aragón, Viceroy of Naples, 1664–1666 and the son of Enrique Ramón Folch de Cardona y Córdoba and Catalina Fernández de Córdoba y Figueroa.
He was born in Lucena, in what is now the Province of Córdoba. A cultured and educated man, he held different positions of high importance for the Court, acting as Viceroy of Catalonia from 1642 to 1644, as ambassador in Rome (1664–1666), and Viceroy of Naples (1666–1671), as well as Commander in chief of Catalonia.