Gelnhausen is a town and the capital of the Main-Kinzig-Kreis, in Hesse, Germany. It is located approximately 40 kilometers east of Frankfurt am Main, between the Vogelsberg mountains and the Spessart range at the river Kinzig. It is one of the eleven towns (urban municipalities) in the district. According to the Institut Géographique National from 1 January 2007 until July 2013 the geographic centre of the European Union was located on a wheat field outside the town at .