Saint-Julien is an Appellation d'Origine Contrôlée (AOC) for red wine in the Bordeaux region, located in the Médoc subregion. It takes its name from the commune Saint-Julien-Beychevelle and is one of the six communal appellations in Médoc. A number of classified (Grand Cru Classé) Bordeaux estates are located within the appellation.
The grape varieties grown under this appellation are the same as those found throughout the Médoc area, i.e. predominantly Cabernet Sauvignon, along with Cabernet Franc, Merlot, Malbec, Petit Verdot and Carménère (traces only).