Château de Didonne, 18th century castle in Semussac, France.

Château de Didonne is an 18th century castle in Semussac surrounded by tall coniferous trees on its grounds. The building displays classical French architecture with multiple rooms and expansive outdoor spaces.

Built in the 18th century, the château replaced the earlier "château de la Touche" on the same site. In 1713 the marquis Jean Charles de Saint-Nectaire acquired the seigneurie de Didonne and moved its seat to this building, which he occupied until 1771. In 2019 it was renovated into a hotel with ten rooms and a restaurant.

The château is named after the seigneurie de Didonne, whose seat the Marquis Jean Charles de Saint-Nectaire transferred here in 1713; he held the estate until 1771. Since 2019 the building has housed a ten-room hotel with a restaurant, so the former noble residence is now open to guests rather than visited as a museum.

The château stands on Allée du Château in Semussac, about 10 km southeast of Royan. It now operates as a hotel with ten rooms and a restaurant, so the interior is reached as a guest or diner rather than on a general tour. The two-storey facade with pale blue shutters faces a broad lawn; the entrance is through the arched doorway of the central projecting porch.

The château replaced the earlier "château de la Touche" on the same spot, so the present building is an 18th-century successor rather than a medieval fortress. In 2019 it was renovated into a hotel with ten rooms and a restaurant.