Frankfurt (Oder) (German pronunciation: [ˈfʁaŋkfʊɐt], Polish: Słubice) is a town in Brandenburg, Germany, located on the Oder River, on the German-Polish border directly opposite the town of Słubice, which was part of Frankfurt until 1945. At the end of the 1980s, it reached a population peak with more than 87,000 inhabitants. The number dropped below 70,000 in 2002 and was just above 60,000 in 2010.
The official name Frankfurt (Oder) and the older Frankfurt an der Oder are used to distinguish it from the larger city of Frankfurt am Main.
The town of Frankfurt received its charter in 1253 at the Brandendamm, although the settlement is probably considerably older. The early settlers lived on the western banks of the Oder; later the town was extended to the eastern bank (today's Słubice). In late medieval times, the town dominated the river trade between Breslau (Wrocław) and Stettin (Szczecin). In 1430, Frankfurt joined the Hanseatic League, but was a member for only a short time.
The Bezirk Frankfurt, also Bezirk Frankfurt (Oder), was a district (Bezirk) of East Germany. The administrative seat and the main town was Frankfurt (Oder).
The district was established, with the other 13, on July 25, 1952, substituting the old German states. After October 3, 1990, it was disestablished due to the German reunification, becoming again part of the state of Brandenburg.
The Bezirk Frankfurt bordered with East Berlin and the Bezirke of Neubrandenburg, Potsdam and Cottbus. It bordered also with Poland.
The Bezirk was divided into 12 Kreise: 3 urban districts (Stadtkreise) and 9 rural districts (Landkreise):