Heiligenhaus (; Limburgish: Hillijehoes) is a town in the district of Mettmann, in North Rhine-Westphalia, Germany, in the suburban Rhine-Ruhr area. It lies between Düsseldorf and Essen.
Bochum University of Applied Sciences (Hochschule Bochum, formerly Fachhochschule Bochum) has a branch in Heiligenhaus for the development of locking Systems.
Heiligenhaus also contains the ancestral family farm of the acclaimed American author John Steinbeck.
Twin towns – sister cities
Heiligenhaus is twinned with:
- Basildon, England, United Kingdom
- Mansfield, England, United Kingdom
- Meaux, France
- Zwönitz, Germany