Nhat V. Meyer/Digital First Media/The Mercury News via Getty National Hamburger Day is on Wednesday, May 28 A range of chains are celebrating the occasion with deals and freebies on or around the holiday Some brands are even celebrating May as National Hamburger Month Happy National Hamburger Day! The United States recognizes Wednesday, May 28, as National Hamburger Day, where a range of popular chains are offering sales and deals on the beloved menu item, perUSA Today. Check out every restaurant celebrating with cheap (or free!) burgers below: You guessed it — Burger King comes prepared to celebrate hamburgers. The chain isrecognizing National Hamburger Monthin May, with a few deals for Royal Perks members still left to claim. On May 27, you can grab a free Original Chicken Sandwich with the purchase of $1 or more, and on May 28, a free hamburger with the purchase of $1 or more. Buffalo Wild Wings Buffalo Wild Wings isn't just chicken! The popular chain is marking National Hamburger Day with half-off any burger on May 28 when ordered for delivery with the code GOBURGER. The chain grocery store is offering a digital coupon for Private Selection 6-pack of Angus Beef Chuck Patties —normally $12.99, but $6.99 with the National Hamburger Day promotion. Download the digital coupon — redeemable until May 31 — on Kroger's site through May 28. With the purchase of Dairy Queen's Signature Stackburger, you can grab another for 99 cents through June 1. To redeem the offer, customers should join DQ Rewards and claim the deal in the app. Matthew Staver/Bloomberg via Getty You can tack on aone-cent Jr. Bacon Cheeseburgerto any in-app purchase, from National Hamburger Day on May 28 to June 1. Customers should register for a Wendy's rewards account to claim the deal. Nhat V. Meyer/Digital First Media/The Mercury News via Getty Like Burger King, Shake Shack skipped National Hamburger Day and went straight toNational Burger Month— customers can grab a free ShackBurger with a $10 purchase or more with the code BURGERMONTH through June 1. Read the original article onPeople