Wölpe

Wölpe is a river of Lower Saxony, Germany. It is about long and a left tributary of the Alpe.

The Wölpe has its source in a depression southeast of , a village in the borough of Nienburg and flows towards the northeast. In front of Rethem the Weiße Graben ("White Ditch") links the Wölpe with the Alpe. The Alpe-Wolpe-Umfluter then discharges into the Aller near Wohlendorf in the borough of Rethem. The waterway has been considerably straightened. It flows through woods, grassland and cultivated fields. According to the 2000 Water Quality Chart issued by the NLWKN it is critically polluted throughout (quality class II−III).