2025 National Hamburger Day Deals: Dairy Queen: Signature DQ Stackburger B1G1 for $1 & Many More

National Hamburger Day Deals 2025 (Sorry if I missed any, I tried to list all I could find.) Bar Louie: Rewards members can celebrate National Burger Day with a $25 Burger Pass at Bar Louie and enjoy a FREE burger on your next visit and $9.95 (reg. $14.95+) every visit after that through Dec. 31, 2025. You can purchase the pass through May 31. Buffalo Wild Wings: On National Hamburger Day (Wednesday, May 28), Buffalo Wild Wings is offering half off any burger when you order online for takeout or delivery and use promo code GOBURGER at checkout.