Carabanchel Prison was a Spanish prison located in Madrid. Its official name was Prisión Provincial de Madrid, and it was built by the Franco regime with the aim of covering the penitentiary needs of the city of Madrid. It was in operation for 55 years. It was located in the district of Carabanchel (Madrid), between line 5 of the Madrid Metro (which runs above ground) and Avenida de los Poblados.