Witwenpalais, Palace in Eutin, Germany.

The Witwenpalais is an empty former aristocratic town palace at Eutin's market square, built in 1786–87 by court architect Peter Richter. It incorporates an older 1695 house that served as Eutin's town hall from 1773 to 1786. The roughly two-winged, angular building has an eleven-axis front facing the market and interiors partly arranged en filade with Zopfstil decoration.

Built 1786–87 by court architect Peter Richter for Duchess Ulrike Friederike Wilhelmine of Hesse-Kassel, widow of Duke Friedrich August I of Oldenburg, who died in 1785. She died in 1787 before the building was finished, so it never served as a widow's residence but kept the name. It incorporates an older house of 1695 that had housed Eutin's town hall from 1773 to 1786.

The name Witwenpalais recalls its intended use as a widow's residence, though Duchess Ulrike Friederike Wilhelmine died in 1787 before the building was finished, so it never served that purpose. Later it housed Johann Heinrich Voß, the court library, the town hall, storage rooms and arrest cells. Inside, some rooms are arranged en filade and decorated in the Zopfstil.

The building stands empty and is not open to visitors; there are no tours or opening hours. It faces the Eutin market square, so the eleven-axis facade can be seen from outside while walking through the town centre. A town buy-back was under negotiation, but talks failed in February 2026.

The palace never served its intended purpose: Duchess Ulrike Friederike Wilhelmine of Hesse-Kassel died in 1787, before the building was finished, and it kept the name anyway. It later housed Johann Heinrich Voss, the court library, the town hall, storage rooms and arrest cells, and has often stood empty.