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.

The 1983 Anniversary show commemorated the 50th anniversary of the Mexican professional wrestling company Empresa Mexicana de Lucha Libre (Spanish for "Mexican Wrestling Promotion"; EMLL) holding their first show on September 22, 1933 by promoter and founder Salvador Lutteroth. EMLL was rebranded early in 1992 to become Consejo Mundial de Lucha Libre ("World Wrestling Council"; CMLL) signal their departure from the National Wrestling Alliance. With the sales of the Jim Crockett Promotions to Ted Turner in 1988 EMLL became the oldest, still-operating wrestling promotion in the world. Over the years EMLL/CMLL has on occasion held multiple shows to celebrate their anniversary but since 1977 the company has only held one annual show, which is considered the biggest show of the year, CMLL's equivalent of WWE's WrestleMania or their Super Bowl event. CMLL has held their Anniversary show at Arena México in Mexico City, Mexico since 1956, the year the building was completed, over time Arena México earned the nickname "The Cathedral of Lucha Libre" due to it hosting most of EMLL/CMLL's major events since the building was completed. Traditionally EMLL/CMLL holds their major events on Friday Nights, replacing their regularly scheduled Super Viernes show.

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