The Allerbeeke is a stream that belongs to the Weser river system in north Germany. With a length of about 12km if flows through the district of Diepholz in the state of Lower Saxony. It rises northeast of the town centre of Sulingen, flows in a southerly direction forming the boundary between Sulingen and Maasen (Siedenburg (Samtgemeinde)) and discharges east of Barenburg into the Große Aue.