Le Château-d'Almenêches (French pronunciation: [lə ʃɑto dalmənɛːʃ] ⓘ; literally 'The Château of Almenêches') is a commune in the Orne department in north-western France.

[3] Le Château-d'Almenêches along with another 70 communes is part of a 20,593 hectare, Natura 2000 conservation area, called the Haute vallée de l'Orne et affluents.

[4] Le Château-d'Almenêches has a total of 8 water courses running through it, two rivers The Orne, and La Don.

The other six watercourses are all streams, the Querpont, The Plessis, la Gironde, The Essards, The Fausse Rivière, & the Essarts.

Surdon station, located in the commune, is a railway junction with connections to Argentan, Caen, Paris, Le Mans and Granville.