Château Palmer is a winery in the Margaux appellation of the Bordeaux region of France. The wine produced here was classified as one of fourteen Troisièmes Crus in the historic Bordeaux Wine Official Classification of 1855. the property is situated in the communes Margaux and Cantenac, and its wine is considered to be one of the two most popular Third Growths.
Since 1998, the Château has also been producing a second label, not a second wine, Alter Ego de Palmer, selected from the same quality terroirs, but employing different wine-making techniques and different proportions of grapes, in order to produce an earlier-drinking wine. Some 40% of the estate's production is now sold as Alter Ego de Palmer. The result has been a significant reduction in the quantity of wine sold as Château Palmer. The previous second wine, La Réserve de Général, is not a component of Alter Ego de Palmer, but is now sold off in bulk.
Once a part of the ancient estate Château d'Issan divided by the heirs of the Foix-Candale family in 1748, 50 hectares of vineyards came to the Gascq family. Though without association to any noble château, the wine produced became Château de Gascq, quickly established in the market and served at the court of Versailles under Louis XV.