Most Reigns
- El Mesías (4)
- Dr. Wagner Jr. (3)
- El Hijo del Vikingo (2)
AAA Mega Championship
Years Active 2007 — Present
Promotion AAA
Brand N/A
Total Reigns 24
Total Champions 15
Longest Reign El Hijo del Vikingo (833 days)
Current Champion 
El Grande Americano
38 days as the AAA Mega Champion
Won title by defeating Dominik Mysterio at TripleMania 34 by Pinfall on September 13, 2026.
Longest Reigns
- El Hijo del Vikingo (833 days)
- Kenny Omega (765 days)
- El Texano Jr. (735 days)
Complete List of Champions and Reign History for the AAA Mega Championship
= Reign Distinction = Includes Reign Notes
| # Click to sort | Wrestler Click to sort | Date Won Click to sort | Opponent(s) Click to sort | Event Click to sort | Match Type Click to sort | Days Held Click to sort |
|---|---|---|---|---|---|---|
| 24 | El Grande Americano | Sep 13, 2026 | Dominik Mysterio | TripleMania 34 | No Disqualification Match | 38* |
| 23 | Dominik Mysterio | Sep 12, 2025 | El Hijo del Vikingo | Worlds Collide: Las Vegas | Singles Match | 366 |
| 22 | El Hijo del Vikingo | May 31, 2025 | Alberto El Patrón | Alianzas | Singles Match | 104 |
| 21 | Alberto El Patrón | Aug 17, 2024 | Nic Nemeth | Triplemania XXXII: Mexico City | Singles Match | 287 |
| 20 | Nic Nemeth | Apr 27, 2024 | Alberto El Patrón | Triplemania XXXII: Monterrey | Vacant Title Match | 112 |
| — | Title Vacated from March 16, 2024 to April 27, 2024 (42 days) | |||||
| 19 | El Hijo del Vikingo | Dec 4, 2021 | Samuray del Sol, Jay Lethal, Bobby Fish, and Bandido | Triplemanía Regia II | Five-Way Match | 833 |
| — | Title Vacated from November 22, 2021 to December 4, 2021 (12 days) | |||||
| 18 | Kenny Omega | Oct 19, 2019 | Fénix | Héroes Inmortales XIII | Singles Match | 765 |
| 17 | Fénix | Aug 25, 2018 | Jeff Jarrett, Brian Cage, and Rich Swann | Triplemanía XXVI | Four-Way Match | 420 |
| 16 | Jeff Jarrett | Jun 3, 2018 | Rey Wagner & Rey Mysterio Jr. | Verano de Escándalo 2018 | Three-Way Match | 83 |
| 15 | Rey Wagner | Jan 26, 2018 | Johnny Mundo | Guerra de Titanes 2018 | Singles Match | 128 |
| 14 | Johnny Mundo | Mar 19, 2017 | El Hijo del Fantasma & El Texano Jr. | Rey de Reyes 2017 | Winner Takes All Three-Way Match | 313 |
| 13 | El Texano Jr. | Mar 23, 2016 | El Mesías | Rey de Reyes 2016 | Vacant Title Match | 361 |
| — | Title Vacated from November 9, 2015 to March 23, 2016 (135 days) | |||||
| 12 | El Patrón Alberto | Dec 7, 2014 | El Texano Jr. | Guerra de Titanes 2014 | Singles Match | 337 |
| 11 | El Texano Jr. | Dec 2, 2012 | El Mesías | Guerra de Titanes 2012 | Singles Match | 735 |
| 10 | El Mesías | Mar 18, 2012 | Jeff Jarrett | Rey de Reyes 2012 | Singles Match | 259 |
| 9 | Jeff Jarrett | Jun 18, 2011 | El Zorro | Triplemanía XIX | Singles Match | 274 |
| 8 | El Zorro | Dec 5, 2010 | Dr. Wagner Jr. | Guerra de Titanes 2010 | Singles Match | 195 |
| 7 | Dr. Wagner Jr. | Jun 6, 2010 | Electroshock | Triplemania XVIII | Singles Match | 182 |
| 6 | Electroshock | Mar 12, 2010 | El Mesías | Rey de Reyes 2010 | Three-Way Match | 86 |
| 5 | El Mesías | Dec 11, 2009 | Dr. Wagner Jr. | Guerra de Titanes 2009 | Singles Match | 91 |
| 4 | Dr. Wagner Jr. | Jun 13, 2009 | El Mesías | Triplemanía XVII | Singles Match | 181 |
| 3 | El Mesías | Dec 6, 2008 | El Zorro | Guerra de Titanes 2008 | Ladder Match | 189 |
| — | Title Vacated from October 24, 2008 to December 6, 2008 (43 days) | |||||
| 2 | Cibernético | Mar 16, 2008 | El Mesías | Rey de Reyes 2008 | Singles Match | 222 |
| 1 | El Mesías | Sep 16, 2007 | Chessman | Verano de Escándalo 2007 | Tournament Final Match | 182 |
AAA Mega Championship Historical Reign Leaders List
| # | Champion | Reigns | Total Days Held | Longest Reign (Days) | Avg. Reign (Days) | % of Career Title Held |
|---|---|---|---|---|---|---|
| 1 |  El Mesías | 4 | 721 | 259 | 180 | 6.6% |
| 2 |  Dr. Wagner Jr. | 3 | 491 | 182 | 164 | 3.3% |
| 3 |  El Texano Jr. | 2 | 1,096 | 735 | 548 | 10.8% |
| 3 |  El Hijo del Vikingo | 2 | 937 | 833 | 469 | 20% |
| 3 |  Alberto El Patrón | 2 | 624 | 337 | 312 | 6.4% |
| 3 |  Jeff Jarrett | 2 | 357 | 274 | 179 | 2.4% |
| 7 |  Kenny Omega | 1 | 765 | 765 | 765 | 7.8% |
| 7 |  Fénix | 1 | 420 | 420 | 420 | 6.8% |
| 7 |  Dominik Mysterio | 1 | 366 | 366 | 366 | 14.7% |
| 7 |  Johnny Mundo | 1 | 313 | 313 | 313 | 3.5% |
| 7 |  Cibernético | 1 | 222 | 222 | 222 | 1.7% |
| 7 |  El Zorro | 1 | 195 | 195 | 195 | 1.6% |
| 7 |  Nic Nemeth | 1 | 112 | 112 | 112 | 1.3% |
| 7 |  Electroshock | 1 | 86 | 86 | 86 | 0.68% |
| 7 | El Grande Americano | 1 | 38 | 38 | 38 | 0.55% |
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