Château Léoville-Las Cases is a winery in the Saint-Julien appellation of the Bordeaux region of France. The wine produced here was classified as one of fifteen Deuxièmes Crus (Second Growths) in the original Bordeaux Wine Official Classification of 1855.
Léoville-Las Cases was one of the first estates in Bordeaux to introduce a second label, Clos du Marquis. The vineyard area in total extends 97 hectares (240 acres) planted with a grape variety distribution of 65% Cabernet Sauvignon, 19% Merlot, 13% Cabernet Franc and 3% Petit Verdot. The vineyard underwent major replanting during the 1950s, and today the vines average 30 years of age.