National Hamburger Day2026 · Date · History · Messages
Wendy’s and BurgerFi first-party materials identify May 28 as National Hamburger Day in separate years.
About National Hamburger Day
National Hamburger Day is an informal food observance widely recognized on May 28 in U.S. restaurant-brand materials.
Wendy’s and BurgerFi have independently used May 28 for the observance, but the reviewed sources do not establish who originally created the day.
Why National Hamburger Day matters
The day is a general celebration of hamburgers and burger variations rather than an official designation of one restaurant, recipe or style.
Brand promotions can demonstrate contemporary observance usage without proving that the participating brand created the observance.
History of National Hamburger Day
BurgerFi’s 2024 first-party release invited customers to celebrate National Hamburger Day on May 28.
Wendy’s first-party materials also identify May 28 as National Hamburger Day in recent campaigns.
The reviewed brand materials establish the recurring date but do not establish the observance’s original founder, inaugural year or formal legal status.
What the evidence establishes
Confirmed institutional roles and milestones are shown first. Details that could not be established from the reviewed sources are listed separately below.
9 fields not established in reviewed sources
Also known as
National Hamburger Day
How to Observe National Hamburger Day
Enjoy a favorite burger or a meatless alternative if that suits you better.
When cooking raw ground beef at home, USDA advises using a food thermometer and reaching 160°F (71.1°C).
Check ingredient information when serving buns, cheese, sauces or toppings to people with food allergies.
Treat restaurant promotions as optional ways to participate, not as evidence that one chain owns or officially governs the observance.
National Hamburger Day Facts
The reviewed first-party restaurant materials place National Hamburger Day on May 28.
The original creator and first observance are not established in the reviewed high-confidence sources.
The day is an informal food observance, not a statutory U.S. public holiday.
USDA advises cooking raw ground beef to 160°F (71.1°C).
Common burger components may include major allergens such as milk, wheat, egg, soy or sesame.
National Hamburger Day Messages
Happy National Hamburger Day—enjoy the burger style that works for you.
Celebrating National Hamburger Day with safe cooking and the toppings you actually like.
Here’s to burgers, clear ingredient information and no single “official” recipe.
Marking May 28 with a burger and a little food-safety common sense.
Topic and context
What this page does not assume
- Keep the source-defined country, community, organizer or institutional scope; do not silently broaden it.
- Do not treat the title alone as proof of government recognition or public-holiday status.
- Do not add a creator, founding story or origin claim unless the supporting evidence establishes it.
Evidence & sources
Sources used across the guide are gathered here. Labels show how each source supports the page, and contextual references are kept separate from primary evidence.
U.S. Food and Drug Administration — food-allergen guidance (safety context only)
USDA Food Safety and Inspection Service — ground-beef safety guidance (safety context only)
BurgerFi — National Hamburger Day recognition
Wendy’s — National Hamburger Day recognition
BurgerFi — National Hamburger Day (opens in a new tab)
First Party Brand
Wendy’s — 2025 National Hamburger Day offer (opens in a new tab)
First Party Brand
U.S. Food and Drug Administration — Food Allergies (opens in a new tab)
USDA Food Safety and Inspection Service — safe minimum internal temperatures (opens in a new tab)
Understand it, compare it, then explore further
Start with the most common factual questions, then compare closely related observances and explore useful connections.
Frequently asked questions
When is National Hamburger Day?
28 May The documented recurrence rule is: 28 May each year..
Does National Hamburger Day fall on the same date every year?
Yes. It uses a fixed annual date unless stronger evidence changes the pattern.
Is National Hamburger Day an official public holiday?
The reviewed sources verify it within this scope: United States / informal food observance with repeated burger-brand usage. That recognition does not by itself make it a statutory public holiday; the site only makes public-holiday claims when reliable evidence explicitly does so.
Who established or recognizes National Hamburger Day?
The documented basis is: Wendy’s and BurgerFi first-party materials identify May 28 as National Hamburger Day in separate years.. Supporting evidence includes Wendy’s — 2025 National Hamburger Day offer. The site does not infer a separate creator or founder unless reviewed evidence establishes one.
Is National Hamburger Day international or country-specific?
This observance is specific to United States. Its fuller verified scope is: United States / informal food observance with repeated burger-brand usage.
How is this page verified?
The factual information is checked against reviewed sources, including the date pattern, scope and institutional history. This page was checked on 2026-09-10.
When is National Hamburger Day?
The reviewed Wendy’s and BurgerFi materials identify May 28.
Did Wendy’s or BurgerFi create National Hamburger Day?
The reviewed sources show that those brands recognize the day; they do not establish either brand as the original creator.
What temperature should ground beef reach?
USDA advises cooking raw ground beef to an internal temperature of 160°F (71.1°C) measured with a food thermometer.
Is National Hamburger Day a federal holiday?
No reviewed evidence establishes it as a statutory federal public holiday.
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