In the United States, National Waffle Day is listed on what date?

In the United States, National Waffle Day is listed on August 24.

The date commemorates an 1869 U.S. patent granted to Cornelius Swartwout for an improved waffle iron. His hinged design made it easier to cook waffle batter over a stove than with earlier irons, which were often clamped and turned by hand over an open fire.

August 24 is specifically the American observance. It is often confused with Waffle Day in Sweden, Norway, and Denmark, which falls on March 25. That Scandinavian date grew from a wordplay connection between the Feast of the Annunciation and the Swedish word for waffle day, våffeldagen.

National Waffle Day is not a federal holiday or an official day off. Like many food observances, it is chiefly promoted by restaurants, food calendars, and waffle fans. The date also differs from International Waffle Day traditions elsewhere, so the country named in the question matters.