CMLL World Heavyweight Championship

The CMLL World Heavyweight Championship (Spanish: Campeonato Mundial de Peso Completo del CMLL) is a men's professional wrestling world heavyweight championship created and promoted by the Mexican (lucha libre) promotion Consejo Mundial de Lucha Libre (CMLL). It was introduced in 1991 to signal CMLL's independence from the National Wrestling Alliance (NWA), as CMLL had left the NWA in the late 1980s but had continued to promote the NWA's championships. As part of the move away from the NWA, CMLL established championships designated as "CMLL World Championships" for several weight divisions. The Heavyweight Championship was the first CMLL title to be created, and the inaugural champion was Konnan el Bárbaro, who won the title on June 9, 1991. The current champion is Gran Guerrero, who is in his first reign. He defeated Hechicero on November 7, 2022. Eighteen different wrestlers have held the championship, split over 22 separate championship reigns.

In most professional wrestling promotions around the world, the "world heavyweight" designation is used to indicate the highest-ranking championship instead of an actual weight division. Traditionally, however, lucha libre has used multiple weight divisions, often with the lower weight classes receiving more attention from the promoters. CMLL carries on this tradition.