McDonald's Corporation is an American multinational fast food chain, founded in 1940 as a restaurant operated by Richard and Maurice McDonald, in San Bernardino, California, United States. They rechristened their business as a hamburger stand, and later turned the company into a franchise, with the Golden Arches logo being introduced in 1953 at a location in Phoenix, Arizona. In 1955, Ray Kroc, a businessman, joined the company as a franchise agent and in 1961 bought out the McDonald brothers. Previously headquartered in Oak Brook, Illinois, it moved to nearby Chicago in June 2018. McDonald's is also a real estate company through its ownership of around 70% of restaurant buildings and 45% of the underlying land.

A chain store or retail chain is a retail outlet in which several locations share a brand, central management and standardized business practices. They have come to dominate the retail and dining markets and many service categories, in many parts of the world. A franchise retail establishment is one form of a chain store. In 2005, the world's largest retail chain, Walmart, became the world's largest corporation based on gross sales.