October 24 is celebrated as National Bologna Day, United Nations Day, and National Food Day. United Nations Day recognizes the founding of the United Nations (UN) in 1945 and is observed annually on October 24th. National Food Day is a day to celebrate and promote healthy eating habits and sustainable food systems. National Bologna Day is a day to enjoy the classic taste of bologna and try out different recipes.

In addition to these national days, there are other holidays and observances that fall on October 24, including World Polio Day, World Tripe Day, and Take Back Your Time Day. It is also ADHD Awareness Month, Breast Cancer Awareness Month, Domestic Violence Awareness Month, and LGBTQ+ History Month.