Lebus is a historic town in the Märkisch-Oderland District of Brandenburg, Germany. It is the administrative seat of Amt Lebus. The town, located on the west bank of the Oder river at the border with Poland, was the centre of the historical region known as Lubusz Land, which provides the name for the present-day Polish Lubusz Voivodeship.

The Oder is a river in Central Europe. It is Poland's second-longest river in total length and third-longest within its borders after the Vistula and Warta. The Oder rises in the Czech Republic and flows 742 kilometres (461 mi) through western Poland, later forming 187 kilometres (116 mi) of the border between Poland and Germany as part of the Oder–Neisse line. The river ultimately flows into the Szczecin Lagoon north of Szczecin and then into three branches that empty into the Bay of Pomerania of the Baltic Sea.