Giant Food Stores, LLC is an American supermarket chain that operates stores in Pennsylvania, Maryland, Virginia and West Virginia. The chain operates under the Giant and Martin's banners. Giant is a subsidiary of Netherlands-based Ahold Delhaize, which also owns similarly-named Giant-Landover; to distinguish from that chain, whose stores also operate under the Giant banner (albeit with a different logo), Giant Food Stores are often referred to as Giant-Carlisle or Giant/Martin's.