Gut Groß-Engershausen, Manor house in Preußisch Oldendorf, Germany.

Gut Groß-Engershausen is a plastered timber-frame manor house with a hipped roof, built around 1770 on an island of roughly 80 by 50 metres. A stone arch bridge crosses the moat (Gräfte) to reach it. The farm buildings stand outside the moat and are still in use; a small mausoleum lies north of the house.

The Rittergut Engershausen was built between 1491 and 1510 by Reinecke II. von Schloen, called Tribbe, who was also the owner of Gut Figenburg. After the von Schloen family died out in 1671, the Hessian von Berner family became owners. In 1838 the von Berner family sold the estate to the von Spiegel zu Desenberg-Rothenburg family; through inheritance it passed to the Freiherren von Spiegel von und zu Peckelsheim at Bielefeld Spiegelsberge. The manor house itself was built around 1770.

The timber-frame building with its hipped roof represents the regional construction style that shaped this area's architecture. The way the main structure connects with agricultural buildings around the moat shows how such an estate functioned as a working rural center.

The estate is in private ownership of the von Spiegel family and is not open to the public without prior arrangement. Visits require advance contact and permission from the owners.

A small mausoleum stands north of the main building, reflecting the family's heritage and connections. Several agricultural structures surrounding the moat continue to serve their original functions in part.