Le C de Calon Segur is the second wine of Chateau Calon Segur, a Bordeaux wine estate located in the Saint-Estephe appellation on the Left Bank of the Gironde river.

The wine is made using a blend of Cabernet Sauvignon, Merlot, and Petit Verdot grapes, and is aged for around 18 months in oak barrels, with around 30% new oak.

Le C de Calon Segur is generally considered to be a more approachable and affordable alternative to the Chateau Calon Segur Grand Vin, and is often produced in smaller quantities.

The wine is known for its rich fruit flavors, elegant tannins, and balanced acidity, with notes of blackberry, black currant, and licorice. Le C de Calon Segur can be enjoyed in its youth or aged for several years, depending on the vintage.