Weißenburg in Bayern (German pronunciation: [ˈvaɪsn̩bʊʁk ʔɪn ˈbaɪɐn], lit. 'Weißenburg in Bavaria'), formerly known as Weißenburg im Nordgau and Weißenburg am Sand, is a town in Middle Franconia, Germany. It is the capital of the district Weißenburg-Gunzenhausen, with a population of 18,345 as of 2024. Weißenburg was a free imperial city for 500 years.