Arena Berlin, Concert and sports arena in Treptow, Germany.

Arena Berlin is a venue in the Treptow district with a distinctive self-supporting roof structure made of steel that allows flexible room arrangements. The hall accommodates up to 10,000 people and includes both indoor and outdoor spaces suitable for different types of events.

The hall was built in 1927 as a depot for the Allgemeine Berliner Omnibus AG (ABOAG), designed by Franz Ahrens, and was then one of Europe's largest self-supporting halls. In 1928 ABOAG merged into the Berliner Verkehrsbetriebe (BVG), which abandoned the site in 1993. It has been used for cultural purposes since 1995 and was extensively renovated in 2000; the listed hall now serves as an event venue.

The name comes from the Latin word for sand, referring to the sandy ground by the Spree. Since 2007 the former boiler house has housed the Arena Club techno venue, and the Mary Jane Berlin hemp fair has been held here annually. The hall itself is a protected monument, a former ABOAG bus depot.

The site is at Eichenstraße 4 in Alt-Treptow, on the Flutgraben opposite the Osthafen. The listed hall covers 6,500 m² and holds up to 9,000 guests, so allow time to cross it during large events. The Arena Club occupies the former boiler house; the Badeschiff lies on the adjacent water.

The venue qualifies for funding support through the Kongressfonds Berlin program when specific attendance and duration requirements are met. This provides event organizers financial assistance for larger conferences and meetings held here.