Bocigas is a municipality in Spain, located in the province of Valladolid within the autonomous community of Castile and León. It lies in the central-northern part of the country, in the region traditionally known as the Tierra de Campos.
According to the 2004 census conducted by the Instituto Nacional de Estadística (INE), Bocigas had a population of 129 inhabitants. The municipality is one of many small rural settlements that make up the sparsely populated countryside of the province of Valladolid.