The doughnut and coffee chain is giving away a free classic donut of their choice with any beverage purchase on June 2.
"Friends don’t let friends miss out on free donuts," Jill McVicar Nelson, Dunkin’s chief marketing officer, said in a statement. "So gather your friends, grab your favorite donut on us when you order your favorite drink, and indulge in the sweet delight of National Donut Day!"
Dunkin’, first founded in 1950 and now part of the Inspire Brands family of restaurants, operates more than 13,200 restaurants in nearly 40 markets worldwide.
FILE - A strawberry frosted donut with sprinkles is arranged for a photograph at a Dunkin Donuts Inc. location in Los Angeles, California, on Sept. 6, 2017. Photographer: Patrick T. Fallon/Bloomberg via Getty Images
Whether you prefer glazed, sprinkles, cream-filled or holes, other sweet treat chains have announced similar deals in honor of National Doughnut Day.
Krispy Kreme is giving all guests one free doughnut on Friday – no purchase required. Customers can also get an original glazed doughnut for $2 with the purchase of any dozen.
This story was reported from Cincinnati.