Lower Oder Valley International Park, International park along Oder River in Brandenburg, Germany and West Pomeranian Voivodeship, Poland

The Lower Oder Valley International Park is a shared German-Polish reserve along the lower Oder, with a German core of 105 km² and a Polish core of 60 km². On the flat western shore, levees are opened in winter and spring so water flows into floodplains until April, when the dikes are closed and the land drains. The Polish side rises steeply on the eastern bank.

On 7 May 1992 the environment ministers of Germany, Poland and Brandenburg and the Szczecin voivode signed a declaration to create a cross-border protected area under IUCN criteria. A German-Polish environmental council decision on 11 December 1992 fixed the name International Park Lower Oder Valley and set up a joint programme council that meets once a year. The core areas followed: the Polish landscape park in 1993 and the German national park in 1995.

The park's name was fixed by the German-Polish Environmental Council on 11 December 1992, when it also created a joint programme council that meets once a year to coordinate the protected area's development. The German and Polish environment ministers and the Szczecin voivode signed the founding declaration on 7 May 1992.

The information centre at Criewen serves as the starting point for the German national park section. The western shore is flat and crossed by levees that are opened in winter and spring, so paths near the floodplain can be wet until the dikes close again in April. The Polish section lies further north on the steep eastern bank in the Gryfino and Police counties.

The park uses levees strategically to flood meadows in winter, creating temporary habitats that attract thousands of passing cranes. This managed flooding approach is what makes the area special for birdwatchers.