The Province of Calatayud was a province of Spain created in the 1822 territorial division of Spain (27 January 1822), during the Trienio Liberal of 1820–1823. It included the Aragonese comarcas of Comunidad de Calatayud, Campo de Daroca, Aranda, the southern part of Valdejalón (now in the province of Zaragoza), the northern part of the Comarca del Jiloca (now in Teruel), as well as some municipalities that now fall in the provinces of Soria and Guadalajara. It had a population of 105,947, which constituted 0.9 percent of the Spanish population at the time. Its capital was Calatayud.