The CMLL World Welterweight Championship (Spanish: "Campeonato Mundial de Peso Welter del CMLL") is a professional wrestling world championship in the Mexican professional wrestling promotion Consejo Mundial de Lucha Libre (CMLL). The official definition of the welterweight division in Mexico is between and but the official weight limits are not always adhered to. As with other professional wrestling championships, it is not won or lost competitively but is instead scripted by the bookers of a wrestling promotion. The title is awarded after the chosen wrestler "wins" a match.