Who gave the Big Mac its name before it became a McDonald's brand icon?

Esther Glickstein Rose gave the Big Mac its name before it became a McDonald's brand icon.

Rose was a McDonald's advertising secretary who suggested the name “Big Mac” in 1967. The name was selected for the company's new double-decker hamburger, which had been developed by franchisee Jim Delligatti in the Pittsburgh area.

The sandwich combined two beef patties with a middle bun layer, lettuce, cheese, pickles, onions, and Big Mac sauce. Its structure made it distinct from McDonald's standard hamburger offerings and gave the company a product that could support its own memorable identity.

Many people assume Delligatti named the sandwich because he created it, while others attribute every McDonald's product decision to Ray Kroc. Delligatti developed the sandwich, but Rose supplied the name that became the enduring trademark-like product identity.