June 5, 2009 No Comments Free Donut at Dunkin’ Donuts Today! – EXPIRED Free Donut at Dunkin’ Donuts Free Donut at Dunkin’ Donuts to Celebrate National Donut Day. On June 5, Dunkin’ Donuts stores to offer a free donut with the purchase of any beverage. Free Donut at Dunkin’ Donuts – EXPIRED Facebook Twitter Add Comment Notify me of follow-up comments by email. Notify me of new posts by email.