McDonaldland was the fictional advertising world featuring Ronald McDonald, Grimace, and the Hamburglar.
McDonald's created the setting for television commercials and other promotional material. It presented the restaurant as a colorful fantasy world populated by characters connected to McDonald's foods, locations, and brand imagery.
Ronald McDonald served as the central human-like character, while Grimace, the Hamburglar, Mayor McCheese, and others formed a recognizable supporting cast. The campaign helped McDonald's speak to children through stories and personalities rather than relying only on product descriptions.
McDonaldland is sometimes mistaken for a restaurant name or a theme-park attraction. It was primarily an advertising concept, although its characters and imagery appeared in physical promotions, playgrounds, packaging, and licensed merchandise.