The first Friday in June (June 4 in 2021) is one of the sweetest days of the year! It’s National Doughnut Day! 

It honors the Salvation Army Lassies, the women that served doughnuts to soldiers during World War I, according to the National Day Calendar.

Here are some deals to help you celebrate:

Duck Donuts is offering a free bare, cinnamon sugar or powdered sugar donut for each in-store guest - no purchase necessary!

Dunkin' is offering a free classic donut with any beverage purchase - while supplies last at participating locations.

The company doesn't have any doughnut-specific giveaways, but they are running promotions for Father's Day, with very special deals.

Krispy Kreme is celebrating with two offers on June 4. Guests who have received their COVID-19 shot are still eligible for one free original glazed doughnut. That means guests can enjoy one free doughnut of choice, one free original glazed doughnut and a $1 original glazed dozen with any dozen purchase.

On June 4,  get one classic or specialty doughnut for 50 cents with any eligible purchase over 50 cents. Even better, this offer is not just for one day, but will last from June 3 through June 15. Guests must be registered Tim rewards members.