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 and learn more. Let’s work up an appetite by mulling this over before getting into all the best freebies and deals to celebrate. Who invented the burger? Like many culinary delights, the burger wasn’t so much invented but evolved in the great melt...