Dm-Arena is a multi-purpose hall in Rheinstetten near Karlsruhe, Germany. The indoor arena is one of four exhibition halls of the Karlsruhe Trade Fair Centre . It opened in 2003 and holds 14,000 people. It hosts mainly trade shows and indoor sporting events like the Indoor Meeting Karlsruhe. While the Karlsruhe Trade Fair Centre is operated by a municipal company, the Dm-Arena carries the name of the sponsor dm-drogerie markt, a chain of retail stores headquartered in Karlsruhe.