March 1st
- Asiatic Fleet Memorial Day
- Baby Sleep Day
- Black Women in Jazz & the Arts Day
- Dadgum That’s Good Day (Masterbuilt Cookbooks)
- Day of Unplugging (First Friday and Saturday in March) ~ March 1st and 2nd
- Dress in Blue Day ~ First Friday in March
- Employee Appreciation Day ~ First Friday in March
- Endometriosis Day
- Horse Protection Day
- NEA Read Across America Day ~ Closest School Day to Dr. Seuss’ Birthday on March 2nd
- Peace Corps Day
- Peanut Butter Lovers’ Day
- Pig Day
- Plan a Solo Vacation Day
- Refired, not Retired Day
- Saint David’s Day
- Salesperson Day ~ First Friday in March
- Self-Injury Awareness Day
- Shabbat Across America/Canada~ Friday of the first full week in March
- Speech and Debate Education Day
- Wear Yellow Day
- World Day of Prayer ~ First Friday in March
- World Compliment Day
- Zero Discrimination Day
March 2nd
- Day of Unplugging (First Friday and Saturday in March) ~ March 1st and 2nd
- Dr. Seuss Day
- Iditarod ~ First Saturday in March
- Old Stuff Day
- Pasty Day
- Sock Monkey Day ~ First Saturday in March
March 3rd
- Caregiver Appreciation Day
- Daughters’ and Sons’ Day ~ First Sunday in March
- Ear Care Day
- Finisher’s Medal Day ~ First Sunday in March
- I Want You to be Happy Day
- If Pets Had Thumbs Day
- Mulled Wine Day
- Namesake Day ~ First Sunday in March
- National Anthem Day
- Peach Blossom Day
- Princess Day
- Shrovetide ~ March 3rd through March 5th
- Simplify Your Life Day
- Soup it Forward Day
- What if Cats and Dogs Had Opposable Thumbs? Day
- World Birth Defects Day
- World Wildlife Day
March 4th
- Backcountry Ski Day
- Benjamin Harrison Day
- Courageous Follower Day
- Fasching
- Fun Facts about Names Day ~ Monday of the first full week in March
- Grammar Day
- Holy Experiment Day
- Hug a G.I. Day
- March Forth and Do Something Day
- Old Inauguration Day
- Scrapbooking Industry Day
- Shrove Monday ~ Date varies
- March Forth and Do Something Day
- Marching Music Day
- Toy Soldier Day
March 5th
- Absinthe Day
- Cinco de Marcho
- Fat Tuesday ~ Date varies
- Learn What Your Name Means Day
- Mardi Gras Fat Tuesday ~ Date varies
- Multiple Personality Day
- Paczki Day ~ Date varies
- Pancake Day ~ Date varies
- Pancake Day Race ~ Date varies
- Poutine Day
- Saint Piran’s Day
- Shrove Tuesday ~ Date varies
- Unique Names Day ~ Tuesday of the first full week in March
- World Tennis Day
March 6th
- Day of the Dude
- Dentist’s Day
- Discover What Your Name Means Day ~ Wednesday of the first full week of March
- Dress Day
- Frozen Food Day
- Oreo Cookie Day
March 7th
- Alexander Graham Bell Day
- Be Heard Day
- Cereal Day
- Crown Roast of Pork Day
- Hospitalist Day ~ First Thursday in March
- Nametag Day ~ Thursday of the first full week in March
- World Book Day ~ First Thursday in March
March 8th
- Be Nasty Day
- Bikini Bottom Free Crabcakes Day ~ for all you SpongeBob fans out there
- Day for Women’s Rights and International Peace
- Girls Write Now Day
- International Working Women’s Day
- Middle Name Pride Day ~ Friday of the first full week of March
- Meatball Day
- Peanut Cluster Day
- Proofreading Day
- Retro Video Game Day
- Tartar Sauce Day ~ First Friday after Lent begins
- U.S. Snow Shoe Days ~ March 8th through March 10th
- Women’s Day
March 9th
- Barbie Day
- Fanny Pack Day ~ 2nd Saturday in March
- Genealogy Day ~ Saturday of the first full week in March
- Get Over It Day
- Meatball Day
- Panic Day
- Urban Ballroom Dancing Day ~ 2nd Saturday in March
March 10th
- Check Your Batteries Day ~ 2nd Sunday in March
- Day of Awesomeness
- Daylight Savings Begins ~ Date varies
- Girl Scout Sunday ~ the Sunday of Girl Scout Week closest to March 12th
- International Bagpipe Day
- International Find a Phone Booth Day
- Land Line Telephone Day
- Mario Day
- Middle Name Pride Day
- Salvation Army Day
- U.S. Paper Money Day
- Women & Girls HIV/AIDS Awareness Day
March 11th
- Johnny Appleseed Day
- Fill our Staplers Day ~ The Monday after Daylight Savings Ends / also November 6th
- Funeral Director and Mortician Recognition Day
- Napping Day ~ The Monday after Daylight Savings Ends
- Oatmeal Nut Waffle Day
- Orthodox Green Monday
- Promposal Day
- World Plumbing Day
- Worship of Tools Day
March 12th
- Alfred Hitchcock Day
- Girl Scouts Day
- IHOP Free Pancake Day
- Organize Your Home Office Day ~ Second Tuesday of March
- Plant a Flower Day
March 13th
- Good Samaritan Involvement Day
- Ear Muff Day
- Jewel Day
- K-9 Veterans Day
- Ken Day (Barbie’s Guy)
- L. Ron Hubbard Day
- Open an Umbrella Indoors Day
- Registered Dietician Day ~ second Wednesday or March
- Smart & Sexy Day
March 14th
- Agriculture Day
- Ask a Question DayLearn About Butterflies Day
- International Day of Action for Rivers
- MOTH-er Day
- Potato Chip Day
- Pi Day
- Popcorn Lover’s Day ~ Second Friday of March
- Save a Spider Day
- Steak and BJ Day
- Write Your Story Day
- World Kidney Day ~ Second Thursday of March
March 15th
- Brutus Day
- Buzzards Day
- Consumer Rights Day
- Day of Action Against Bullying and Violence
- Dumbstruck Day
- Everything You Think is Wrong Day
- Ides of March
- International Day of Action Against Canadian Seal Slaughter
- Shoe the World Day
- Sleep Day ~ Friday of the second full week in March
- True Confessions Day
March 16th
- Black Press Day
- Campfire Girls Day
- Corn Dog Day ~ 3rd Saturday in March
- Curlew Day
- Everything You Do is Right Day
- Freedom of Information Day
- Goddard Day
- International Sports Car Racing Day ~ 3rd Saturday in March
- Lips Appreciation Day
- No Selfies Day
- Panda Day
- Play the Recorder Day ~ 3rd Saturday in March
- Quilting Day ~ 3rd Saturday in March
- Save the Panther Day ~ 3rd Saturday in March
- Saint Uhho’s Day
March 17th
- Campfire Day
- Corned Beef and Cabbage Day
- Submarine Day
- Saint Patrick’s Day
March 18th
- Awkward Moments Day
- Biodiesel Day
- Forgive Mom and Dad Day
- Goddess of Fertility Day
- Public Defense Day
- Supreme Sacrifice Day
- Transit Driver Appreciation Day ~ Always on the 18th or closest weekday to the 18th
- Wellderly Day ~ 3rd Monday in March
March 19th
- Certified Nurses Day
- Chocolate Caramel Day
- Client’s Day
- Goddess of Fertility Day ~ Always the day before the Spring Equinox
- Let’s Laugh Day
- Operation Iraqi Freedom Day
- Poultry Day
- Social Work Day ~ Third Thursday in March
- Swallows Return to San Juan Capistrano Day
- Tea for Two Tuesday ~ Third Thursday in March
March 20th
- Alien Abduction Day
- Astrology Day ~ Spring Equinox
- Bed-in for Peace Day
- Dairy Queen Free Cone Day ~ 2019
- Day of Theatre for Children and Young People
- International Day of Happiness
- International Earth Day
- Extraterrestrial Abductions Day
- French Language Day
- Great American Meat Out Day
- Kick Butts Day ~ 3rd Wednesday in March
- Kiss Your Fiance Day
- Native HIV/AIDS Awareness Day
- Proposal Day
- Purim ~ Date varies, Begins at Sundown
- Agriculture Day ~ Date varies
- First Day of Spring ~ Vernal Equinox / Spring Equinox / Ostara
- Snowman Burning Day
- Sparrow Day
- Storytelling Day ~ always on the Spring Equinox
- Ta’Anit Esther
- Won’t You Be My Neighbor Day
March 21st
- Absolutely Incredible Kid Day ~ Third Thursday of March
- Afghanistan Day
- Colour Day
- Common Courtesy Day
- Credit Card Reduction Day
- Day of Forests and the Tree
- Down Syndrome Day
- Elimination of Racial Discrimination Day
- Farm Rescuer Day ~ 3rd Thursday in March
- Fragrance Day
- Healthy Fats Day
- Memory Day
- Nowruz (Norooz)
- Renewable Energy Day
- Poetry Day
- Puppetry Day
- Single Parent Day
- Syringe Exchange Day
- Twitter Day
March 22nd
- As Young as You Feel Day
- Day of the Seal
- Endometriosis March Day ~ 4th Saturday in March
- Goof Off Day
- Metta Day
- Talk Like William Shatner Day
- Tuskegee Airmen Day
- Water Day
March 23rd
- Be Mad Day ~ 4th Saturday of March
- Melba Toast Day
- Chia Day
- Chip and Dip Day
- OK Day
- Near Miss Day
- Puppy Day
- Meteorological Day
- Near Miss Day
- Tamale Day
March 24th
- Chocolate Covered Raisin Day
- Right to the Truth Concerning Gross Human Rights Violations and for Dignity of Victims Day
- Tuberculosis Day
March 25th
- Celebration of Greek & American Democracy Day
- Feast of the Annunciation
- Medal of Honor Day
- Pecan Day
- Remembrance of the Victims of Slavery and the Transatlantic Day
- Solidarity with Detained and Missing Staff Members Day
- Tolkien Reading Day
- Unborn Child Day
- Waffle Day (Vaffeldagen)
March 26th
- American Diabetes Association Alert Day ~ 4th Tuesday in March
- Legal Assistants Day
- Live Long and Prosper Day
- Make Up Your Own Holiday Day
- Purple Day
- Spinach Day
March 27th
- Celebrate Exchange Day
- “Joe” Day
- Little Red Wagon Day ~ Last Wednesday in March
- Manatee Appreciation Day ~ Last Wednesday in March
- Quirky Country Music Song Titles Day
- Scribble Day
- Spanish Paella Day
- Viagra Day
- Whole Grain Sampling Day ~ Last Wednesday in March
- World Theatre Day
March 28th
- Barnum & Bailey Day
- Black Forest Cake Day
- Children’s Picture Book Day
- Eat an Eskimo Pie Day
- Something on a Stick Day
- Triglycerides Day
- Virtual Advocacy Day
- Weed Appreciation Day
March 29th
- Knights of Columbus Founders Day
- Mom and Pop Business Owners Day
- Niagara Falls Runs Dry Day
- Smoke and Mirrors Day
- Vietnam War Veterans Day
March 30th
- Bi-Polar Day
- Doctors Day
- Earth Hour
- Folding Laundry Day
- Grass is Always Greener on the Other Side of the Fence Day
- I am in Control Day
- National Doctor’s Day
- Pencil Day
- Take a Walk in the Park Day
- Torrents Day
- Turkey Neck Soup Day
- Virtual Vacation Day
March 31st
- Anesthesia Tech Day
- Bunsen Burner Day
- Cesar Chavez Day
- Clam on the Half Shell Day
- Crayon Day
- Hug a Medievalist Day
- Mothering Sunday
- Prom Day
- She’s Funny That Way Day
- Terri’s Day
- Transgender Day of Visibility
- World Backup Day