Möhnesee is a municipality in the district of Soest, in North Rhine-Westphalia, Germany.

The Möhnesee municipality is situated around the Möhne Reservoir (hence the name), approx.

On the night of the 16/17 May 1943, the Dam which contains the Mohnesee was breached in an attack by Avro Lancaster Bombers of 617 Squadron of the British Royal Air Force, the "Dambusters".

The municipality Möhnesee contains the following 18 subdivisions, with Körbecke as the largest:

This Soest district location article is a stub.