McDonald's fictional advertising world introduced alongside its character cast was called McDonaldland.
McDonaldland was a fantasy setting used in McDonald's advertising beginning in the early 1970s. It gave the company's characters a shared environment and allowed commercials, restaurant play areas, merchandise, and promotional material to tell connected stories. Ronald McDonald served as the central human-like character, while figures such as the Hamburglar, Grimace, and Mayor McCheese occupied distinctive roles.
The name is a branded word formed from McDonald's and “land.” It should not be confused with a real theme park or a normal McDonald's restaurant location. McDonaldland existed primarily as an advertising concept, although physical playgrounds and promotional installations sometimes recreated parts of its imagery.
The fictional world helped McDonald's appeal to children and families during a period when character-based marketing was becoming increasingly important in fast food. Some characters were retired or redesigned over the years, but McDonaldland remains a notable chapter in the company's branding history.