Wagenfelder Aue is a river of Lower Saxony, Germany, a right tributary of the Hunte.

The Wagenfelder Aue's total length is 26 kilometres (16 mi), entirely contained within the southern part of the district of Diepholz. It drains a large area of marshland.

The river rises south of the centre of Wagenfeld and flows northwards through the town, forming the border between the Samtgemeindes (collective municipalities) of Barnstorf and Rehden before discharging into the Hunte south of Barnstorf.

• List of rivers of Lower Saxony