AAA World Cruiserweight Championship
The AAA World Cruiserweight Championship is a professional wrestling championship promoted by the Mexican lucha libre promotion Lucha Libre AAA Worldwide, a subsidiary of the American promotion WWE. The championship cannot be competed for by anyone who is over the Cruiserweight division weight limit of. Traditionally, this division is labelled as the "Junior Heavyweight" division in Mexico while "Cruiserweight" is a term more used in the United States or Canada. The current champion is Laredo Kid, who is in his second reign. He won the title by defeating Matt Riddle at Cierre De La Gira Origenes on December 7, 2024.
The championship was originally named the AAA Cruiserweight Championship. but had the word "world" added to the name after El Hijo del Fantasma won a match on August 17, 2014, that unified the championship with the AAA Fusión Championship. A total of fourteen men have held the championship for a total of sixteen different title reigns.
History
The inaugural champion was Alex Koslov, who defeated Alan Stone and Xtreme Tiger at AAA Television Taping on May 21, 2009, in Aguascalientes, Aguascalientes. On August 17, 2014, at Triplemanía XXII, the Cruiserweight Champion Daga defended the title in a 10-man elimination match, where also participated the AAA Fusion Champion Fénix. El Hijo del Fantasma won the match and unified both titles, deactivating the Fusion Championship and renaming the title as AAA World Cruiserweight Championship. On February 10, 2021, the champion Laredo Kid faced the Major League Wrestling's World Middleweight Champion Lio Rush in a title vs. title match. Despite Rush winning the match and being recognized as champion, a few days later AAA did not recognize the title change. Instead, Laredo Kid appeared on AAA show with the title belt. According to Konnan, an AAA booker, Rush lost the title back to Laredo Kid in a un-televised match. On May 5, Laredo Kid appeared in MLW Fusion with the AAA title, making an in-character statement where he refused to recognize Rush as champion.Reigns
Overall, there have been 17 official reigns among 14 champions and two vacancies. The inaugural champion is Alex Koslov. Laredo Kid holds the longest reign at 1,218 days. During his reign, Kid was defeated by Lio Rush in a unification match to unify the AAA World Cruiserweight Championship with Rush's MLW World Middleweight Championship, although this reign was not recognized by AAA. Koslov holds the shortest reign at 9 days. Koslov, Kid, and Xtreme Tiger have held the title the most times with 2 championship reigns. The oldest champion is Juventud Guerrera who won at the age of 37 years and 178 days, while the youngest champion is Daga who won at the age of 24 years and 136 days.Laredo Kid is the current champion, who is in his second reign. He won the title by defeating Matt Riddle at Cierre De La Gira Origenes on December 7, 2024 in Mexico City.
| Name | Duration |
| AAA Cruiserweight Championship | May 21, 2009 – August 17, 2014 |
| AAA World Cruiserweight Championship | August 17, 2014 – present |
Combined reigns
As of ,| Rank | Wrestler | No. of reigns | Combined days |
| 1 | † | 2 | + |
| 2 | 1 | 945 | |
| 3 | 1 | 713 | |
| 4 | 1 | 623 | |
| 5 | 1 | 394 | |
| 6 | 1 | 329 | |
| 7 | 2 | 322 | |
| 8 | 1 | 211 | |
| 9 | 1 | 197 | |
| 10 | 1 | 196 | |
| 11 | 1 | 175 | |
| 12 | 1 | 118 | |
| 13 | 1 | 112 | |
| 14 | 2 | 32 | |
| — | — | — |