The CMLL World Light Heavyweight Championship is a professional wrestling world heavyweight championship promoted by Consejo Mundial de Lucha Libre (CMLL) since 1991. 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. The official definition of the light heavyweight division in Mexico is between 92 kg (203 lb) and 97 kg (214 lb), but the weight limits are not always strictly adhered to. Because CMLL puts more emphasis on the lower weight classes, this division is considered more important than the heavyweight division, which is considered the most important championship by most promotions outside Mexico. The current champion is Averno, who is in his first reign. He defeated Bárbaro Cavernario at Homenaje a Dos Leyendas on March 29, 2024. He is the 18th overall champion and the 16th wrestler to officially hold the championship. The title has been vacated twice since its creation in 1991, and has had one unofficial reign.

Consejo Mundial de Lucha Libre Co., Ltd. is a lucha libre professional wrestling promotion based in Mexico City. The promotion was previously known as Empresa Mexicana de Lucha Libre (EMLL). Founded in 1933, it is the oldest professional wrestling promotion still in existence.