A food observance on March 6 celebrating the Oreo cookie, the world's best-selling cookie, through eating, sharing, and creative recipes.
Last updated February 26, 2026 · by the
Holiday Calendar Team
The observance emerged organically in the 2010s with no verified creator or official establishment. It falls on March 6, the date in 1912 when Nabisco first sold Oreo cookies.
Get ready for a sweet celebration on National Oreo Cookie Day, March 6th! This day commemorates the classic cookie that has been around since 1912. According to legend, the first Oreo was made by Nabisco and sold in Hoboken, New Jersey. Since then it's become one of the most popular treats in America with over 362 billion cookies sold annually!
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National Oreo Cookie Day ran on March 6 without a tracked deal. Browse past offers from previous years.
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