Corullón is a village and municipality in Spain, located in the region of El Bierzo within the province of León, part of the autonomous community of Castile and León. It lies in the northwestern part of the country, in an area known for its mountainous terrain and wine-producing Bierzo comarca.
According to the 2010 census conducted by the Instituto Nacional de Estadística (INE), the municipality had a population of 1,122 inhabitants. As a municipality, Corullón encompasses the village itself along with surrounding rural territory.