Gunzenhausen is a town in the Weißenburg-Gunzenhausen district, in Bavaria, Germany. It is situated on the river Altmühl, 19 kilometres (12 mi) northwest of Weißenburg in Bayern, and 45 kilometres (28 mi) southwest of Nuremberg. Gunzenhausen is a nationally recognized recreation area. It is noted as being at one end of part of The Limes Germanicus, a Roman border wall, and a UNESCO World Heritage Site.