McDonald's (McDonald's) is McDonald's is one of the world's largest fast food chains, founded by the McDonald brothers and Ray Kroc in the 1950s in the United States, to sell burgers as the main chain of fast food restaurants. Promoted worldwide, McDonald's restaurants are located in more than 100 countries on six continents. McDonald's has become the most valuable brand in the global food and beverage industry. In many countries McDonald's represents an American way of life.