Horstmar is a German town, located in North Rhine-Westphalia in the Steinfurt district, approx.

The city of Horstmar was built to the south of this castle.

During the Thirty Years' War the castle was destroyed by order of the Hessian lieutenant Carl von Rabenhaupt.

The city council consists of 22 councillors and the mayor.

This Steinfurt district location article is a stub.