March 1 – Mardi Gras, Paczki Day, National Peanut Butter Lover’s Day
March 2 – Dr. Seuss’s Birthday
March 3 – National Anthem Day
March 4 – Employee Appreciation Day
March 5 – Cheese Doodle Day
March 6 – National Dentist’s Day
March 7 – National Cereal Day
March 8 – International Women's Day
March 9 – National Barbie Day
March 10 – World Kidney Day
March 11 – National Johnny Appleseed Day
March 12 – National Girl Scout Day
March 13 – Daylight Saving Time
March 14 – National Pi Day
March 15 – The Ides of March
March 16 – National Panda Day
March 17 – St. Patrick’s Day
March 18 – National Sloppy Joe Day
March 19 – National Corn Dog Day
March 20 – First Day of Spring
March 21 – National Common Courtesy Day
March 22 – National Goof Off day
March 23 – National Puppy Day
March 24 – National Cocktail Day
March 25 – National Tolkien Reading Day
March 26 – National Spinach Day
March 27 – National Spanish Paella Day
March 28 – National Black Forest Cake Day
March 29 – Mom & Pop Business Owners Day
March 30 – National Take a Walk in the Park Day
March 31 – National Prom Day