The CMLL Día de Muertos (2018) is a professional wrestling pay-per-view event, scripted and produced by the Mexican Lucha Libre promotion Consejo Mundial de Lucha Libre (CMLL). The show took place on November 2, 2018, in CMLL's main venue, Arena México, in Mexico City, Mexico and celebrated the Mexican Day of the Dead celebration. Many of the wrestlers working the show wore the traditional Día de Muertos face and body paint for the Día de Muerto event. From the fourth match on the losing wrestlers were dragged to El Inframundo, a side entrance in the arena, by a group of wrestlers dressed up as minions of the ruler of the underworld.

Templario is a Mexican luchador enmascarado currently signed to Mexican wrestling promotion Consejo Mundial de Lucha Libre (CMLL), where he is the current CMLL World Middleweight Champion in his first reign and a former Mexican National Middleweight Champion. Templario portrays a rudo wrestling character. It is uncertain exactly when Templario made his professional wrestling career and if he has used a different ring name before adopting the "Templario" persona around 2012 or 2013.