Mittelweser (Samtgemeinde)

Mittelweser is a Samtgemeinde ("collective municipality") in the district of Nienburg, in Lower Saxony, Germany. Its seat is in the village Stolzenau. It was formed on 1 November 2011 when the municipality Stolzenau joined the former Samtgemeinde Landesbergen.

The Samtgemeinde Mittelweser consists of the following municipalities:

1. Estorf
2. Husum
3. Landesbergen
4. Leese
5. Stolzenau

Coordinates: 52°32′N 9°07′E / 52.53°N 9.12°E / 52.53; 9.12