When Worlds Collide was a professional wrestling pay-per-view (PPV) event that took place on November 6, 1994, at the Los Angeles Memorial Sports Arena in Los Angeles, California. It was scripted and produced by the Mexican lucha libre company Asistencia Asesoría y Administración (AAA), now known as Lucha Libre AAA Worldwide, and their American partner, International Wrestling Council (IWC). The show was produced by the technical staff of World Championship Wrestling (WCW). WCW Executive Vice-President Eric Bischoff had helped AAA secure the show to be broadcast by American pay-per-view providers, marking the first time a non-US-based wrestling promotion was shown live on US PPV television. The show was broadcast in both English and Spanish. Chris Cruise and Mike Tenay called the action in English, while Arturo Rivera and Andrés Maroñas handled the Spanish announcing. This event also marked Tenay's first commentating role in professional wrestling.

The Los Angeles Memorial Sports Arena was a multi-purpose arena at Exposition Park, in the University Park neighborhood of Los Angeles. It was located next to the Los Angeles Memorial Coliseum and just south of the campus of the University of Southern California, which managed and operated both venues under a master lease agreement with the Los Angeles Memorial Coliseum Commission. The arena was closed in April 2016, and was demolished in September of that same year. It was replaced with BMO Stadium, home of Major League Soccer's Los Angeles FC, which opened in 2018.