Free Donuts On National Donut Day – 6/4! June 2, 2010 at 3:45 pm by Cindy Livesey | free 2 Comments This Friday, June 4th is National Donut Day. Yes there is a National Day for everything, even donuts. And, you can score some free donuts of course. Here is what is available on Friday: Krispy Kreme: Free donut. Head over here for a list of participating stores. Dunkin Donuts: Free donut with any beverage purchase. You can check out the Dunkin Donuts Facebook page. The links in the post above may be affiliate links. Read the full disclosure.