Which McDonald's character became the mayor of McDonaldland?

Mayor McCheese was the character who became the mayor of McDonaldland.

McDonaldland was a fictional setting used in McDonald's advertising beginning in the early 1970s. Its characters gave the brand a connected cast for television commercials, promotional materials, playgrounds, and merchandise. Mayor McCheese was designed as a smiling character with a cheeseburger for a head and formal mayoral clothing.

The character's title made him the civic leader of the imaginary world, while other figures filled different comic or companion roles. This kind of branded universe helped McDonald's speak directly to children and families through recurring stories rather than isolated product advertisements.

Mayor McCheese is sometimes confused with Officer Big Mac or Ronald McDonald because all appeared in the same fictional setting. Their identities were distinct: Mayor McCheese was the elected-style civic figure, while Ronald was the central clown mascot and Officer Big Mac was associated with law enforcement. McDonaldland characters later became less prominent in mainstream advertising.