Château Sigalas-Rabaud, previously also named Château Rabaud-Sigalas, is a sweet white wine ranked as Premier Cru Classé (French, “First Growth”) in the original Bordeaux Wine Official Classification of 1855. Belonging to the Sauternes appellation in Gironde, in the region of Graves, the winery is located in the commune of Bommes. It was once joined with Château Rabaud-Promis in the estate named Château Rabaud.