Mayorga, also known as Mayorga de Campos, is a municipality located in the north of the province of Valladolid, in the autonomous community of Castile and León, Spain. It belongs to the comarca of Tierra de Campos and the judicial district of Medina de Rioseco. According to the 2024 census (INE), it has a population of 1354 inhabitants. It covers an area of 163.4 square kilometres.