The Geeste is a river in Lower Saxony, Germany. It rises near the village of Hipstedt and falls into the Weser at Bremerhaven after a course of some 40 km. It is the Weser's lowest tributary. The lower reaches of the Geeste are navigable and form part of the Elbe–Weser waterway. A barrier system at Bremerhaven prevents storm surges from moving up the Geeste and flooding the surrounding districts. This was completed in 1961, just in time for the North Sea flood of 1962.