National Onion Day is observed every year on June 27, celebrating the versatility and health benefits of onions, a staple ingredient in global cuisines. Established by the National Onion Association (NOA) in 2019 to mark its founding anniversary, this holiday encourages people to incorporate more onions into their diets. The NOA, which represents over 500 members of the onion industry in the United States, highlights the various culinary uses of onions, including in dishes like French onion soup and onion rings. Onions can be consumed raw or cooked in numerous ways, such as sautéed, caramelized, or pickled. Observers can celebrate by sharing recipes, learning cooking tips, and using the hashtag #NationalOnionDay on social media.