The McDonald's product name introduced in 1967 that became a globally recognized burger brand is Big Mac.
The Big Mac was created by Jim Delligatti, a McDonald's franchisee who operated restaurants in the Pittsburgh area. It used two beef patties, a middle bun layer, lettuce, cheese, pickles, onions, and sauce. The distinctive construction helped separate it from ordinary single-patty hamburgers.
The sandwich was first tested regionally before being introduced across the United States in 1968. Its name became a major part of McDonald's brand language, appearing in advertising, packaging, and international menus.
The Big Mac is sometimes dated only to 1968 because that was its nationwide U.S. introduction. The more precise history distinguishes Delligatti's 1967 regional launch from the 1968 national rollout. The sandwich's recognizable name and design later supported products such as the Big Mac Index.