Wallenhorst is a municipality in the district of Osnabrück, in Lower Saxony, Germany.

It is situated in the Wiehengebirge, approx.

10 km north of Osnabrück.

The New St. Alexander Church serves as a reference height for all other heights in the German Mean Height Reference System (Normalhöhennull).

This Osnabrück district location article is a stub.