You’ve missed this freebie, but you’ll find all of the Freebies here. Celebrate National Doughnut Day at Krispy Kreme on June 6 and get a free doughnut of any variety. Offer is void in CT. National Doughnut Day was established in 1938 by The Salvation Army to raise funds for people in need during the depression and is observed every year on the first Friday of June. Offer is valid at participating locations in the US and Canada. No purchase necessary.