National Cheeseburger Day freebies and deals: McDonald’s, Five Guys, Burger King, more. See the full list

When thinking of American food, cheeseburgers naturally come to mind. But are they truly a product of the United States? Since today (Friday, September 18, 2026) is National Cheeseburger Day, it’s the perfect opportunity to investigate. Let’s work up an appetite by mulling this o