Westside Xtreme Wrestling, commonly shortened to wXw, is a German professional wrestling promotion based in Gelsenkirchen, North Rhine-Westphalia. wXw has been one of the leading professional wrestling promotions in Germany, and most of its events have been held in the Ruhr district, primarily in Oberhausen. Since 2013, wXw regularly tours throughout Germany, adding tour stops outside the country including Switzerland, the Czech Republic and the United Kingdom.

Oberhausen is a city on the river Emscher in the Ruhr Area, Germany, located between Duisburg and Essen. The city hosts the International Short Film Festival Oberhausen and its Gasometer Oberhausen is an anchor point of the European Route of Industrial Heritage.