Subway IP LLC, doing business as Subway, is an American multinational fast food restaurant franchise that specializes in submarine sandwiches (subs) and wraps. It was founded by Fred DeLuca and financed by Peter Buck in 1965 as Pete's Super Submarines in Bridgeport, Connecticut. After several name changes, it was renamed Subway in 1972, and a franchise operation began in 1974 with a second restaurant in Wallingford, Connecticut. It has expanded to become a global franchise.

A fast-food restaurant, also known as a quick-service restaurant (QSR) within the industry, is a specific type of restaurant that serves fast-food cuisine and has minimal table service. The food served in fast-food restaurants is typically part of a "meat-sweet diet", offered from a limited menu, cooked in bulk in advance and kept hot, finished and packaged to order, and usually available for take away, though seating may be provided. Fast-food restaurants are typically part of a restaurant chain or franchise operation that provides standardized ingredients and/or partially prepared foods and supplies to each restaurant through controlled supply channels. The term "fast food" was recognized in a dictionary by Merriam–Webster in 1951.