Who gave the Big Mac its name while working in McDonald's corporate advertising?

Esther Glickstein Rose gave the Big Mac its name while working in McDonald's corporate advertising.

Rose proposed the name in 1967, when McDonald’s was developing a larger sandwich to compete with other substantial fast-food burgers. The sandwich had already been created by franchisee Jim Delligatti, but its final identity still needed a memorable product name.

Rose was a secretary in McDonald’s advertising department, and her suggestion replaced other proposed names. The Big Mac was introduced nationally in 1968, turning the name into one of the most recognizable pieces of McDonald’s product branding.

A common mix-up is crediting Delligatti with both the sandwich and the name. Delligatti developed the sandwich, while Rose supplied the name. The Big Mac’s branding later expanded through advertising, packaging, and the famous Big Mac jingle.