AAA Mega Championship

Statistics
First champion	El Mesías
Most reigns	El Mesías; (4 reigns)
Longest reign	El Hijo del Vikingo; (1st reign, 833 days)
Shortest reign	Jeff Jarrett; (2nd reign, 83 days)
Oldest champion	Dr. Wagner Jr.; (52 years, 167 days)
Youngest champion	El Hijo del Vikingo; (24 years, 219 days)
Heaviest champion	Electroshock; (119 kg (262 lb))
Lightest champion	El Hijo del Vikingo; (71 kg (157 lb))

AAA Mega Championship
(*Mega Campeonato AAA*)
AAA Mega Championship; (Mega Campeonato AAA)
	The current design of the AAA Mega Championship belt (2026–present)
Details
Promotion	Lucha Libre AAA Worldwide
Date established	September 16, 2007
Current champion	El Grande Americano
Date won	September 13, 2026
Other names
	AAA Mega Championship (2007–present); AAA World Heavyweight Championship (alternative name; 2007–present); Mexican Heavyweight Championship (name used by TNA; 2011);
First champion
Statistics
First champion	El Mesías
Most reigns	El Mesías; (4 reigns)
Longest reign	El Hijo del Vikingo; (1st reign, 833 days)
Shortest reign	Jeff Jarrett; (2nd reign, 83 days)
Oldest champion	Dr. Wagner Jr.; (52 years, 167 days)
Youngest champion	El Hijo del Vikingo; (24 years, 219 days)
Heaviest champion	Electroshock; (119 kg (262 lb))
Lightest champion	El Hijo del Vikingo; (71 kg (157 lb))

The AAA Mega Championship (often referred to as the AAA World Heavyweight Championship in English and known as the Mega Campeonato AAA in Spanish) is a men's professional wrestling world heavyweight championship promoted by Mexican promotion Lucha Libre AAA Worldwide (AAA), sister promotion of the U.S. based WWE. The current champion is El Grande Americano, who is in his first reign. He won the title by defeating Dominik Mysterio in a No Disqualification match on Night 2 of Triplemanía 34 on September 13, 2026.