The Walchensee Power Plant (German: Walchenseekraftwerk) is a hydroelectric power station in Bavaria, Germany. It is a storage power station that is fed water from the Walchensee which is then released into the Kochelsee . The installed capacity is 124 MW with an annual production of 300 GWh. The power plant is south of Kochelsee, about 14 km (8.7 mi) from the village of Walchensee. It is one of the largest of its kind in Germany and has been owned by Uniper Kraftwerke GmbH since 2016.

The power station uses the hydraulic head of about 200 m (660 ft) between the Walchensee (acting as the upper reservoir, at 802 m/2,631 ft above sea level) and the Kochelsee (599 m/1,965 ft a.s.l.) to generate electricity.