Gaspar Téllez-Girón, 5th Duke of Osuna
Gaspar Téllez-Girón, 5th Duke de Osuna (25 May 1625 – Madrid, 2 June 1694), 5th Marquess of Peñafiel, 9th Count of Ureña and other lesser titles, was a Spanish general and a Grandee of Spain.
He lost the Battle of Castelo Rodrigo in 1664, as part of the Portuguese Restoration War. He was Viceroy of Catalonia, 1667–1669, Governor of the Duchy of Milan, Italy, (1670–1674), when he was replaced by Claude Lamoral, Prince of Ligne.
He was also President of the Council of Aragon between 1692 and 1694.