Duke of Gandía is a title of Spanish nobility that was first created in 1399 by Martin of Aragon and granted to Alfonso of Aragon and Foix. It has its origin in the lordship of Gandía created in 1323 by James II of Aragon. Later, having no direct descendants, the title passed from the House of Barcelona to the House of Trastámara. The title was re-established in 1483 by Ferdinand II of Aragon as a favour to Rodrigo Cardinal Borgia for his son Pier Luigi Borgia. The dukedom then went to Pier Luigi's half-brother Giovanni Borgia. He was assassinated, and his young son inherited the title. The fourth duke was the religious figure Francesco Borgia. After the death of his wife, with whom he had a large family, he became a Jesuit.

Dukes of Gandía

House of Aragon

House of Trastámara

House of Borja or Borgia

On 20 December 1483, the title was re-established by Ferdinand II of Aragon and granted to the House of Borgia, of Spain and Italy.

House of Pimentel

House of Osuna