WWE Worlds Collide

Worlds Collide is a professional wrestling event series co-produced by WWE, an American-based professional wrestling promotion, and Lucha Libre AAA Worldwide (AAA), a Mexican-based subsidiary of WWE. The event was first established as When Worlds Collide in 1994 as a co-production of AAA and World Championship Wrestling (WCW). WWE purchased WCW in 2001, acquiring the rights to When Worlds Collide. WWE re-established the event in 2019 as Worlds Collide, with the concept being interbrand competition between WWE's various brand divisions. Although the event has been held primarily for WWE's developmental brand, NXT, other brands have also been featured. The event was put on hiatus after the 2020 event but returned in 2022. After another three-year hiatus, the event returned in June 2025 and was held with Mexico's AAA, which WWE acquired in April 2025.

The first event under WWE was held as a tournament in early 2019 and featured wrestlers from NXT, NXT UK, and 205 Live. In April that year, a four-episode streaming television series titled WWE Worlds Collide aired. In addition to the other three brands, this series also featured wrestlers from WWE's main roster brands, Raw and SmackDown. A second singular event was then held in 2020, but only featured wrestlers from NXT and NXT UK. The 2022 event was again held primarily for NXT and NXT UK, but also with a few wrestlers from Raw and SmackDown taking part; this was also the final WWE event for NXT UK (205 Live was also dissolved in early 2022). The 2025 event featured wrestlers from Raw, SmackDown, NXT, and AAA, as well as WWE and AAA partner promotion Total Nonstop Action Wrestling.