The Allerbeeke is a stream that belongs to the Weser river system in north Germany. With a length of about 12 kilometres (7.5 mi) 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.