The La Gran Cruzada (Spanish for "The Great Crusade") is a semi-regular major professional wrestling show produced and scripted by the Mexican lucha libre promotion International Wrestling Revolution Group (IWRG; Sometimes referred to as Grupo Internacional Revolución in Mexico) starting in 2011. La Gran Cruzada refers both to the overall event and to the main event tournament, a 30-man tournament to determine the number one contender for the IWRG Rey del Ring Championship.
The event was first held in the fall of 2011, months after IWRG introduced the actual IWRG Rey del Ring Championship as the award for the annual Rey del Ring ("King of the Ring") tournament winner. Each winner was supposed to later receive a championship match against whomever was the reigning champion at the time. Trauma I won the 2011 La Gran Cruzada there are no records of him having a Rey del Ring Championship match. El Hijo de Pirata Morgan won the 2012 La Gran Cruzada and would later defeat Oficial Factor to win the Rey del Ring Championship. Mosco X-Fly won the 2015 La Gran Cruzada but never received his "reward" of an IWRG Intercontinental Heavyweight Championship match. No La Gran Cruzada was held in 2013 or 2014 and it has not been announced for 2016. A total of 94 wrestlers have worked at least one La Gran Cruzada Show.