National Burger Day 2025.  — in honor of national burger day on may 28, wendy's will be selling its iconic jr. History, top tweets, 2025 date, fun facts, and things to do.

 — national cheeseburger day is celebrated on september 18.  — it’s national burger day on thursday 22nd august 2025, so we’ve pulled together some of the best burger deals to help you celebrate in style.