Zahna is a town and a former municipality in Wittenberg district in Saxony-Anhalt, Germany not far from Federal Highway (Bundesstraße) B 2 and about 11 km east of Lutherstadt Wittenberg. It was the seat of the former administrative community (Verwaltungsgemeinschaft) of Elbaue-Fläming. Since 1 January 2011, it is part of the town Zahna-Elster.