Which McDonald's mascot was designed as the mayor of McDonaldland?

Mayor McCheese was designed as the mayor of McDonaldland.

Mayor McCheese was a human-like character with a large cheeseburger for a head. He wore a formal mayoral outfit and served as one of the most recognizable figures in McDonald's fantasy advertising world. His design turned a familiar menu item into a civic character, reinforcing the playful connection between the restaurant and McDonaldland.

Mayor McCheese is often mixed up with Officer Big Mac, who had a law-enforcement role, or with Ronald McDonald, who was the central host of the fictional world. The mayor belonged to the broader ensemble rather than serving as the company's primary mascot. Like many McDonaldland characters, Mayor McCheese was prominent during the 1970s and 1980s but became much less visible as McDonald's moved toward simpler and more product-focused advertising.