Carrefour SA (Public, EPA:CA) is a French international hypermarket chain. Headquartered in Levallois-Perret, France, Carrefour is the largest hypermarket chain in the world in terms of size, and the second largest retail group in the world in terms of revenue and third largest in profit after Wal-Mart and Tesco. Carrefour operates mainly in Europe, China, Colombia, Brazil, Argentina and in the Dominican Republic, but also has shops in North Africa and other parts of Asia. Carrefour means "crossroads" in French.

Carrefour SA's supermarket chains include Champion and GS brands, which primarily offer food, clothing and household goods. The Company's hard discount stores include Dia, Ed and Minipreco, and offer a reduced selection of products at discount prices. Its convenience stores include Shopi and Proxi and offer a range of convenience products and services.

Carrefour SA's cash-and-carry stores, such as Promocash and Docks Market, offer wholesale products for businesses. The Company also offers Internet shopping through its online cyber-markets.

Carrefour SA has over 15,000 stores, either own or franchised. The Company is present in 33 countries worldwide.