Francisco Javier Costilla Macedo (born December 3, 1974) is a Mexican luchador enmascarado, or masked professional wrestler, better known by his ring name Ramstein. He is working for the Mexican professional wrestling promotion Consejo Mundial de Lucha Libre (CMLL) portraying a rudo ("bad guy") wrestling character. He is a former member of the wrestling groups La Alianza and Pandilla Guerrera.