| Date | Event | Place |
|---|---|---|
| Sep 18, 2026 | National Cheeseburger Day 2026 | USA |
| Sep 18, 2027 | National Cheeseburger Day 2027 | USA |
Significance: A hamburger topped with cheese is a cheeseburger. It can include many variations. Usually the cheese is added early so it can melt on the meat. A cheeseburger may have more than one hamburger patty and more than one slice of cheese.