The CMLL World Middleweight Championship (Spanish: "Campeonato Mundial de Peso Medio del CMLL") is a professional wrestling world championship promoted by the Mexican wrestling promotion Consejo Mundial de Lucha Libre (CMLL). While lighter weight classes are regularly ignored in wrestling promotions in the United States, with most emphasis placed on "heavyweights", more emphasis is placed on the lighter classes in Mexican companies. The official definition of the middleweight division in Mexico is a person between and , but the weight limits are not strictly adhered to. As it is a professional wrestling championship, it is not won via legitimate competition; it is instead won via a scripted ending to a match or on occasion awarded to a wrestler because of a storyline.