Mayor McCheese was the cheese-headed mayor introduced in 1971 as part of McDonaldland.
The character had a human-like body, a large cheeseburger for a head, and a mayoral sash. His design turned familiar McDonald's food into a personified figure, reinforcing the fantasy setting used in the company's family advertising.
Mayor McCheese appeared with Ronald McDonald and other McDonaldland characters in commercials and promotional material. The character represented the fictional community's civic authority, although the stories were primarily designed to support imaginative branding for children.
Mayor McCheese is easily confused with Officer Big Mac because both were authority figures in McDonaldland. Officer Big Mac had a police role and a Big Mac-themed head, while Mayor McCheese was specifically the town's mayor and had a cheeseburger head.