Gut Hahn, Manor house in Oldenburg, Germany

Gut Hahn is a manor house in Oldenburg featuring a main residence, farm buildings, and a chapel near a small lake. The entire property spans several hectares in a quiet rural setting northeast of the city center.

The estate first appeared in records in 1059 as Villa Hona and was owned by the Counts of Oldenburg for several centuries. The Johanniter order took control after 1310 and maintained the property through the medieval period.

The estate's name comes from its first mention as Villa Hona in 1059. A literary memorial by Hinrich Janssen honours the estate's "kunstreichsingenden Papagay", a talking parrot kept here. The surviving manor house was built in 1856 by Adolph Friedrich de Cousser, replacing an older one.

Gut Hahn lies about 20 km north of Oldenburg at the edge of the Rasteder Geestrücken; the preserved manor house is the Gulfhaus built in 1765, with the entrance in the middle of its long cream-coloured facade. The medieval motte stands about 100 m north of the manor house, surrounded by a water-filled ditch. The site is private property, so visits should be arranged in advance.

The property features a medieval motte about 100 meters north of the main building, a remnant from the early medieval period that many visitors overlook. This earthwork is an unusual survival from defensive architecture of that era and provides insight into how the site was once protected.