AAA Mega Championship

The AAA Mega Championship is a men's professional wrestling world heavyweight championship promoted by Mexican promotion Lucha Libre AAA Worldwide, a subsidiary of the American promotion WWE. The current champion is Dominik Mysterio, who is in his first reign. He defeated El Hijo del Vikingo at Worlds Collide: Las Vegas on September 12, 2025.

History

The title was introduced in 2007 via a single elimination tournament billed as the Torneo Campeón De Campeones, which effectively unified the IWC World Heavyweight Championship, Grand Prix Championship Wrestling SUPER-X Monster Championship, Mexican National Heavyweight Championship, and UWA World Light Heavyweight Championship. The tournament field included the four reigning champions of the aforementioned titles and the number one contender to each championship. IWC World Heavyweight Champion El Mesías became the first AAA Mega Champion upon defeating UWA World Light Heavyweight Champion Chessman in the final round.

Inaugural Championship Tournament bracket

In 2011, the then-AAA Mega Champion and Total Nonstop Action Wrestling founder Jeff Jarrett appeared with a redesigned version of the title belt on TNA programming. TNA used the Mega Championship belt on their programming, but due to Spike TV, then TNA's broadcaster, not allowing TNA to refer to AAA by name, a silver hexagonal plate was used to cover the AAA faceplate. While Jarrett appeared in TNA, the title was referred to as the "Mexican Heavyweight Championship". On April 21, 2013, the title was defended outside AAA for the first time at Puerto Rico's World Wrestling League. In March 2015, the AAA Mega Champion El Patrón Alberto defended the championship in Lucha Underground, made possible through AAA's joint ownership of Lucha Underground.

Reigns

Overall, there have been 23 reigns among 14 champions and four vacancies. The inaugural champion is El Mesías, who defeated Chessman in the tournament final at Verano de Escándalo on September 16, 2007. El Texano Jr.'s first reign as champion gave the title the world status when he defended it in Mexico. El Hijo del Vikingo has the longest reign at 833 days. Jeff Jarrett has the shortest reign at 83 days. El Mesías holds the record for the most reigns with four. El Texano Jr., Fénix, Kenny Omega, and El Hijo Del Vikingo are the only four wrestlers to have held the title for a full consecutive year. Dr. Wagner Jr. is the oldest champion at 52 years and 167 days, while El Hijo del Vikingo is the youngest at 24 years and 219 days.
The current champion is Dominik Mysterio, who is in his first reign. He defeated El Hijo del Vikingo at Worlds Collide: Las Vegas on September 12, 2025 in Paradise, Nevada, U.S..

Combined reigns

As of ,

Rank	Wrestler	No. of reigns	Combined days
1		2	1,096
2		2	937
3		1	765
4		4	721
5		2	624
6		3	491
7		1	420
8		2	357
9		1	313
10		1	222
11		1	195
12	†	1	+
13		1	112
14		1	86