Champion is a supermarket chain that operates in France and is owned by the international retailer Carrefour. The second largest supermarket chain in France, its annual turnover is €12.2bn. There are over 1,000 stores and 60,000 employees. There are also Champion supermarkets in Belgium, Spain, Poland, Greece, Turkey and Argentina. The chain grew in 1999 by absorbing the Stock chain. In 2006, Carrefour closed most Brazilian Champion stores and rebranded the remainder to the Carrefour Bairro. Also, all Spanish and Turkish Champion supermarkets were rebranded as Carrefour Express in 2006; some of them became Maxi DIA

All Champion stores world-wide are currently in the process of being rebranded as Carrefour Market

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.