Château Haut-Marbuzet is a Bordeaux wine estate in the Saint-Estèphe appellation area of the Haut-Médoc. Although its origins go back to the 18th century, the estate only emerged as a leading quality producer from 1952 after Hervé Duboscq acquired it.
Today, his son Henri Duboscq is the winemaker and owner of Haut-Marbuzet, along with Château Chambert-Marbuzet and Château Tour de Marbuzet.
Initially listed among the Cru Bourgeois in 1932, and later promoted Grand Bourgeois Exceptionnel in 1978, the estate was classified as one of 9 Crus Bourgeois Exceptionnels in the 2003 official listing. According to David Peppercorn, "Today, Haut-Marbuzet is widely considered of a cru classé status, well off the bottom rung".