National Double Cheeseburger Day

National Double Cheeseburger Day on September 15 is for two patties and cheese. It is not National Hamburger Day (May 28) or National Cheeseburger Day (mid-September on this site).

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National Double Cheeseburger Day - National Double Cheeseburger Day on September 15 is for two patties and cheese. It is not National Hamburger Day (May 28) or National Cheeseburger Day (mid-September on this site).

About National Double Cheeseburger Day

History & origins

September 15 is listed as National Double Cheeseburger Day. Origin is undocumented. National Cheeseburger Day is a nearby but separate observance on this calendar.

Why it matters

The date exists because searchers look for the double stack, not a generic burger page.

How to celebrate

Cook or order a double cheeseburger if you eat beef. There is no need to chase a limited-time chain stunt.

Facts

September 15 is a double-stack-specific date
Do not merge with May hamburger day
The named day’s founder is unclear

Upcoming dates

Tuesday, September 15, 2026
Wednesday, September 15, 2027
Friday, September 15, 2028
Saturday, September 15, 2029
Sunday, September 15, 2030

Frequently asked questions

When is National Double Cheeseburger Day in 2026?

National Double Cheeseburger Day in 2026 falls on Tuesday, September 15, 2026.

Is it hamburger day?

No. National Hamburger Day is May 28 here.

Who started it?

No verified founder is documented.

How do you celebrate?

Eat a double cheeseburger if you want one.

Help others discover this day by sharing it.

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