Château Sociando-Mallet

Château Sociando-Mallet is an unclassed Bordeaux wine producer from the appellation Haut-Médoc. The winery is located on the Left Bank of the Bordeaux wine regions, in the commune of Saint-Seurin-de-Cadourne north of Saint-Estèphe, France. Despite its estimation as a producer of high quality wine, it was neither ranked in the Bordeaux Wine Official Classification of 1855 (not existing at the time), nor is it listed among Médoc's Cru Bourgeois, due to a decision of its owner Jean Gautreau not to enter it for such classification.

The winery also produces a second wine named La Demoiselle de Sociando-Mallet.