The McDonald's sandwich introduced in 1967 was the Big Mac.
McDonald's franchisee Jim Delligatti created the sandwich in the United States as a larger, more distinctive alternative to the company's standard hamburgers. It was first sold in the Pittsburgh area before spreading across the American market. Its two beef patties, middle bun layer, lettuce, cheese, pickles, onions, and special sauce gave it a recognizable identity that became central to McDonald's menu branding.
The Big Mac was not McDonald's first major specialty sandwich. The Filet-O-Fish arrived earlier, in 1962, while the Quarter Pounder debuted in 1971. The Big Mac's name and stacked appearance, however, made it especially effective in advertising and helped turn it into an internationally recognized McDonald's product.
A common mix-up is the launch date: 1967 refers to its initial introduction, while nationwide availability in the United States followed in 1968. Recipes and serving details have varied by market, but the name remains a consistent part of the brand's global identity.