Carrias is a municipality in the province of Burgos, within the autonomous community of Castile and León, Spain. It is a small rural settlement in northern Spain, situated in the Burgos countryside.
The municipality is sparsely populated. According to the 2013 census conducted by Spain's National Statistics Institute (INE), Carrias had a population of 26 inhabitants, making it one of the many very small municipalities characteristic of the depopulated rural areas of inland Castile and León.