Rittal Arena Wetzlar is an indoor sporting arena located in Wetzlar, Germany. The capacity of the arena is 5,000 people and it was opened in 2005. It is the home to the Handball Bundesliga club HSG Wetzlar. The arena previously carried the name Mittelhessen-Arena until the naming rights to the stadium were sold in March 2006 to the German company Rittal.
The stadium was one of the venues for the 2007 World Men's Handball Championship.