The Rudolf Weber-Arena (originally the Arena Oberhausen) is a multipurpose arena, located in Oberhausen, Germany. Opening in September 1996, the arena is a part of the leisure and shopping center, CentrO. The venue was built in Neue Mitte Oberhausen [de], a former industrial plant.

In November 2001, König Brauerei, a brewery in Duisburg, purchased naming rights to the arena which took effect from January 2002. In December 2021, the arena's naming rights were purchased by Essen-based cleaning company Rudolf Weber GmbH.

The maximum capacity of the arena is 12,650, where the seating is arranged on two levels. It is also possible to have a center stage configuration, 12,000 people can attend such events. There are also two possible theatre configurations with 3,000 and 5,200 capacity, respectively.

• Arena Oberhausen (12 September 1996—31 December 2001)
• König-Pilsener-Arena (1 January 2002—31 December 2021)
• Rudolf Weber-Arena (1 January 2022—present)

The arena hosts a wide variety of events, with more than 800,000 people attending about a hundred events. The arena also hosts a variety of shows, e.g. Stomp or Riverdance. The König Pilsener Arena played host to UFC 122 on 13 November 2010.

• List of indoor arenas in Germany

• Profile on DLA Designs
• Profile on SMG Europe
• Profile on baa projektmanagement GmbH