Who suggested the name “Big Mac” for McDonald's new hamburger in 1967?

Esther Glickstein Rose suggested the name “Big Mac” for McDonald's new hamburger in 1967.

Rose was a 21-year-old advertising secretary at McDonald's corporate headquarters when she proposed the name. The sandwich had originally been developed as a larger competitor to the Big Boy hamburger sold by the Big Boy restaurant chain, so naming was an important part of making the product distinctive.

The Big Mac debuted nationally in the United States in 1968 after regional testing. Its identity depended on more than the name: the burger used two beef patties, a middle bun, lettuce, cheese, pickles, onions, and the sauce later popularly called Big Mac sauce.

A common mistake is crediting the sandwich's creation and its naming to the same person. Franchisee Jim Delligatti is generally credited with developing the Big Mac, while Rose is credited with suggesting its final name. The product became one of McDonald's most recognizable branded menu items.