Duke of Denia (), is an hereditary title in the peerage of Spain, accompanied by the dignity of Grandee. It was granted to ÃÂngela Maria Apolonia Pérez de Barradas y Bernuy on 28 June 1886 by king Alfonso XII. The tile was originally granted as "Duke of Denia and Tarifa" (duque de Denia y Tarifa) but was separated into two different titles on 22 December 1886 by the Queen Regent, Maria Christina of Austria.