The Guerra de Familias (Spanish for "War of the Families") is a major professional wrestling show held by the Mexican Lucha Libre promotion International Wrestling Revolution Group (IWRG) intermittently starting in 2012. The show honors the fact that Lucha Libre is a family tradition by holding a tournament where all teams are supposedly made up of family members. All shows have been held in Arena Naucalpan in Naucalpan, Mexico State, IWRG's main venue. IWRG has held a Guerra de Familias show in 2012, 2013 and 2015, with no show announced for 2016 yet.
Mexican Lucha libre, or professional wrestling, has a long history of being a family tradition with brothers, sons, daughters, grandchildren etc. following in the footsteps of their relatives and also become luchadors (wrestlers). The professional wrestling promotion International Wrestling Revolution Group (IWRG; Sometimes referred to as Grupo Internacional Revolución in Spanish) honors the traditions of family in lucha libre as part of their annual shows, including Rebelión de los Juniors, a show which focuses on second or third generation wrestlers. The also promote a IWRG Legado Final ("Final Legacy") show that also focuses on generations teaming up for a tournament as well as the IWRG Junior de Juniors Championship where the challengers and champions must be a second generation wrestler in one form or another. Starting in 2012 IWRG has also held shows billed as Guerra de Familias ("War of the Families"), a show featuring a tag team tournament featuring family members teaming up for a one night tournament. IWRG offers no tangible prize to the winner other than the honor of winning the tournament. The first Guerra de Familias show was a combined effort of IWRG and Promocciones Wagner and featured a steel cage match format instead of an elimination tournament. In 2013 and 2015 the format was a one night, 8 team tag team tournament.