The Stöbber is the central river in the hilly landscape of „Märkische Schweiz“ and the Märkische Schweiz Nature Park, Brandenburg, Germany. The stream runs over a distance of 25 kilometers from the fen and source region of Rotes Luch towards the northeast through Buckow to the Oderbruch. Near Neuhardenberg the Stöbber flows into the Alte Oder, whose waters run over some canals to the Oder River and the Baltic Sea. On a roughly 13 kilometer long route of its course there is designated the nature protection area „Naturschutzgebiet Stobbertal“. In Altfriedland the river passes the Damm-Mühle and, directly alongside the Kietzer See (lake), a Special European Protection Area (SPA) for the conservation of wild living birds.