The Marquess of Martorell (Spanish: Marqués de Martorell) is a title of Spanish nobility that was created in 1627 by King Philip IV in favor of Luis Francisco Fajardo de Zúñiga y Requesens.

[1] Luis Francisco Fajardo de Zúñiga y Requesens was a grandson of Luis Fajardo y Requeséns, 3rd Marquis of Molina, of the House of Vélez and Lord of the Barony of Martorell, by incorporation of the House of Requeséns de Soler.

Its name refers to the Catalan municipality of Martorell, in the Province of Barcelona.