National Donut Day is synonymous with free donuts at Dunkin’, and this year is no different. On June 7, head to any Dunkin’ location nationwide to enjoy a free classic donut of your choice with the purchase of any beverage while supplies last. It’s the perfect excuse to try a delicious drink from the new summer menu like the Blueberry Donut Iced Coffee or the Vanilla Frosted Donut Iced Coffee Signature Latte.