The EMLL 50th Anniversary Show was a professional wrestling major show event produced by Empresa Mexicana de Lucha Libre (EMLL) that took place on September 23, 1983 in Arena México, Mexico City, Mexico. The event commemorated the 50th anniversary of EMLL, which would become the oldest professional wrestling promotion in the world. The Anniversary show is EMLL's biggest show of the year, their Super Bowl event. The main event was the culmination of a long running, intense storyline between Sangre Chicana and MS-1, with both men putting their hair on the line against the outcome of their Lucha de Apuestas, bet match. The show featured at least three additional matches including Ultraman defending the Mexican National Middleweight Championship against El Supremo.