Ciria is a municipality in Spain, located in the province of Soria within the autonomous community of Castile and León. It lies in the eastern part of the province, in the region of the Iberian Peninsula known as the Meseta Central.
According to the 2004 census conducted by the Instituto Nacional de Estadística (INE), Ciria had a population of 103 inhabitants. The municipality is one of many small, sparsely populated settlements that characterise the rural interior of Soria province.