Five Guys National Hamburger Day 2024 Dates. National hamburger day is observed annually on may 28, which falls on a tuesday this year. This may be the biggest day of the year for the ultimate burger lover, and there’s some delicious variations to enjoy when celebrating.

National hamburger day is observed annually on may 28, which falls on a tuesday this year. And while it carries the same validity as national french fry day (july 13) or national chocolate chip cookie day (aug.