Castrillo de Cabrera (Spanish pronunciation: [kasˈtɾiʎo ðe kaˈβɾeɾa]), Castriellu de Cabreira in Leonese language, is a municipality located in the province of León, Castile and León, Spain. According to the 2010 census (INE), the municipality has a population of 152 inhabitants spread over the six villages that make up the municipality.