May Holidays & National Days & Fun Days | May Calendar
| May 01 | May 02 | May 03 | May 04 | May 05 |
| May 06 | May 07 | May 08 | May 09 | May 10 |
| May 11 | May 12 | May 13 | May 14 | May 15 |
| May 16 | May 17 | May 18 | May 19 | May 20 |
| May 21 | May 22 | May 23 | May 24 | May 25 |
| May 26 | May 27 | May 28 | May 29 | May 30 |
| May 31 |
May Holidays
May 1
- Batman Day
- Beltane
- Couple Appreciation Day
- CSS Reboot Day
- Executive Coaching Day
- Frequent Flyer Day
- Global Love Day
- International Sunflower Guerilla Gardening Day
- International Worker’s Day
- Keep Kids Alive Drive 25 Day
- Law Day
- Lei Day (U.S. State of Hawaii)
- Loyalty Day
- May Day
- Mother Goose Day
- National Chocolate Parfait Day
- National Day of Prayer (First Thursday in May)
- National Day of Reason (First Thursday in May) – Set up in 2003 by Humanists/Atheists on the same day as the National Day of Prayer for a secular alternative
- National Heatstroke Prevention Day
- National Purebred Dog Day
- New Homeowners Day
- Phone in Sick Day
- Save the Rhino Day
- School Principals’ Day
- Silver Star Service Banner Day
- Thank you Thursday (Six Days Before the First Wednesday in May)
- Therapeutic Massage Awareness Day
- World Password Day (First Thursday in May)
- Worthy Wage Day
May 2
- Baby Day
- Brothers and Sisters Day
- International Harry Potter Day
- International Scurvy Awareness Day
- International Space Day (First Friday in May)
- Kentucky Oaks (Friday before the Kentucky Derby)
- National Fire Day
- National Life Insurance Day
- National Play Your Ukulele Day
- National Truffles Day
- No Pants Day (First Friday in May)
- School Lunch Hero Day (First Friday in May)
- Take a Baby to Lunch Day
- Tuba Day
- World Tuna Day
May 3
- Astronomy Day – Spring (Saturday from Mid-April to Mid-May)
- Bladder Cancer Awareness Day (First Saturday in May)
- Bombshell’s Day (First Saturday in May)
- Childhood Stroke Awareness Day (First Saturday in May)
- Free Comic Book Day (First Saturday in May)
- Garden Meditation Day
- International Doodle Dog Day (First Saturday in May)
- International Drone Day (First Saturday in May)
- Join Hands Day: Youth and Adults Volunteering Together (First Saturday in May)
- Kentucky Derby (First Saturday in May)
- Learn to Ride a Bike Day (First Saturday in May)
- National Auctioneers Day (First Saturday in May)
- National Chocolate Custard Day
- National Explosive Ordinance Disposal (EOD) Day (First Saturday of May)
- National Fitness Day (First Saturday in May)
- National Herb Day (First Saturday in May) and also April 26, 2025
- National Homebrew Day (First Saturday in May)
- National Lumpy Rug Day
- National Play Outside Day – (First Saturday in EVERY Month)
- National Public Radio Day
- National Raspberry Popover Day
- National SAN Architect Day
- National Scrapbooking Day (First Saturday in May)
- National Specially-abled Pets Day
- National Textile Day
- National Two Different Colored Shoes Day
- National Wildfire Community Preparedness Day (First Saturday in May)
- Paranormal Day
- Pilates Day (First Saturday in May)
- Spring Astronomy Day
- Start Seeing Monarchs Day (First Saturday in May)
- Sun Day
- Wordsmith Day
- World Beer Pong Day (First Saturday in May)
- World Naked Gardening Day (First Saturday in May)
- World Press Freedom Day
May 4
- Anti-Bullying Day
- Bird Day
- Dave Brubeck Day (Jazz Pianist and Composer)
- Intergalactic Star Wars Day
- International Baby Lost Mother’s Day (First Sunday in May)
- International Bereaved Mother’s Day (First Sunday in May)
- International Female Ride Day (IFRD)
- International Firefighter’s Day
- International Permaculture Day (First Sunday in May)
- International Respect for Chickens Day
- K.I.N.D. Day (K.I.N.D. = Kids in Need of Diapers)
- Kent State Shootings Remembrance (Local Observance in Ohio)
- Lemonade Day (First Sunday in May)
- Mayday for Mutts (First Sunday in May)
- Motorcycle Mass and Blessings of the Bike (First Sunday in May)
- National Candied Orange Peel Day
- National Infertility Survival Day (First Sunday in May)
- National Kids Fitness Day
- National Lemonade Day
- National Orange Juice Day
- National Ride a Bike Day
- National Weather Observers Day
- Petite and Proud Day
- Renewal Day
- Rhode Island Independence Day
- Rural Life Sunday (First Sunday in May)
- Star Wars Day
- World Give Day
- World Laughter Day (First Sunday in May)
May 5
- Bonza Bottler Day
- Cartoonists Day
- Cinco de Mayo
- Europe Day (Council of Europe)
- Great Lakes Awareness Day (Monday of the First Full Week in May)
- Hand Hygiene Day
- Hug a Shed and Take a Selfie Day
- International Midwives Day
- Melanoma Monday (First Monday in May)
- Missing and Murdered Indigenous Women Awareness Day (Canada and the U.S.)
- Museum Lover’s Day
- Nail Day
- National Hoagie Day
- National Meeting Planners Appreciation Day (Monday of the First Full Week in May)
- National Silence the Shame Day
- Oyster Day
- Revenge of the Fifth
- Square Root Day
- Totally Chipotle Day
- World Portuguese Language Day
May 6
- Childhood Depression Awareness Day (First Tuesday in May)
- Foster Care Day (First Tuesday in May)
- International No Diet Day
- Joseph Brackett Day
- Mom’s Equal Pay Day
- National Beverage Day
- National Concert Day (First Tuesday in May)
- National Crepes Suzette Day
- National Golf Day (First Tuesday in May)
- National Nurses Day, or National RN Recognition Day
- National Teachers Day (Tuesday of the First Full Week in May)
- National Tourist Appreciation Day
- No Homework Day
- World Asthma Day (First Tuesday in May)
May 7
- Great American Grump Out (First Wednesday of May)
- National Anxiety Disorders Screening Day (First Wednesday in May)
- National Barrier Awareness Day
- National Cosmopolitan Day
- National Day to Prevent Teen and Unplanned Pregnancy (First Wednesday in May)
- National (Deaf) Interpreter Day (First Wednesday in May)
- National Roast Leg of Lamb Day
- National School Nurse Day (Wednesday of National Nurse Week on May 6-12)
- National Skilled Trades Day (First Wednesday in May)
- National Tourism Day
- National Walk Bike & Roll to School Day
- Occupational Safety and Health Professionals Day
- Paste Up Day
- Project Aces Day (First Wednesday in May) (Aces = All Children Exercise Simultaneously)
May 8
- Emancipation Day – (Columbus, Mississippi)
- Free Trade Day
- Iris Day
- Make a Book Day (Thursday of National Family Reading Week)
- National Children’s Mental Health Awareness Day
- National Coconut Cream Pie Day
- National Empanada Day
- National Give Someone a Cupcake Day
- National Have a Coke Day
- National Student Nurses Day
- No Socks Day
- Truman Day (On or around May 8)
- V-E Day
- White Lotus Day
- World Donkey Day
- World Ovarian Cancer Day
- World Red Cross Day
May 9
- Alphabet Magnet Day
- Child Care Provider Day (Friday before Mother’s Day)
- Confederate Memorial Day, but Observed on May 9, 2025 (States of North Carolina and South Carolina)
- Fintastic Friday: Giving Sharks a Voice (Second Friday in May)
- Hurrah For Buttons Day
- Lost Sock Memorial Day
- Military Spouse Appreciation Day (Friday before Mother’s Day)
- National Butterscotch Brownie Day
- National Moscato Day
- National Provider Appreciation Day (Friday before Mother’s Day)
- National Public Gardens Day (Friday before Mother’s Day)
- National Sleepover Day
- Tear The Tags off the Mattress Day
May 10
- Alaska Mining Day
- American Indian Day (Second Saturday in May)
- Armed Forces Day Military-Amateur Crossband Communications Day (A week before Armed Forces Day)
- Bereaved Mother’s Day (Second Saturday in May)
- Birthmother’s Day (Saturday before Mother’s Day)
- Brunch for Lunch Day (Day Before Mother’s Day)
- Clean Up Your Room Day
- Confederate Memorial Day, but Observed on May 9, 2025 (States of North Carolina and South Carolina)
- Cornelia de Lange Syndrome Awareness Day (CdLS) (Second Saturday in May)
- International Migratory Bird Day (Second Saturday in May)
- Jamestown Day
- Letter Carrier’s Stamp Out Hunger Food Drive Day (Second Saturday in May)
- Martin Z. Mollusk Day (Saturday of First Full Week in May)
- Mother Ocean Day (Saturday before Mother’s Day)
- National Animal Disaster Preparedness Day (Second Saturday in May)
- National Archery Day (Second Saturday in May)
- National Babysitters Day (Saturday before Mother’s Day)
- National Dog Mom’s Day (Saturday before Mother’s Day)
- National Lipid Day
- National Miniature Golf Day (Second Saturday in May)
- National Shrimp Day
- National Small Business Day
- National Train Day (Held on the Saturday closest to May 10th)
- National Veal Ban Action Day (Second Sunday in May)
- National Windmill Day (Second Saturday in May)
- O. Henry Pun-Off Day (Saturday before Mother’s Day)
- One Day Without Shoes
- Stay Up All Night (Second Saturday in May)
- Sun Awareness Day (Second Saturday in May)
- Trust Your Intuition Day
- World Belly Dance Day (Second Saturday in May)
- World Buckfast Day (Second Saturday in May)
- World Fair Trade Day (Second Saturday in May)
- World Lupus Day
May 11
- Eat What you Want Day
- Hostess Cupcake Day
- Mother’s At the Wall Day (Always Mother’s Day)
- Mother’s Day (Second Sunday in May)
- National Foam Rolling Day (RE: Massage)
- National Twilight Zone Day
- World Ego Awareness Day
May 12
- Buddha Day
- Day of Vesak
- International Awareness Day
- International Myalgic Encephalomyelitis / Chronic Fatigue Syndrome Awareness Day
- International Nurses Day
- Limerick Day
- National Fibromyalgia Awareness Day
- National Hospital Day
- National Nutty Fudge Day
- National Odometer Day
- National Women’s Check-up Day (Monday following Mother’s Day)
May 13
- Children of Fallen Patriots Day
- Cough Drop Day
- Friday the 13th
- Frog Jumping Day
- IEEE Global Engineering the Future Day
- International Hummus Day
- National Apple Pie Day
- National Fruit Cocktail Day
- National Leprechaun Day
- Sex Differences in Health Awareness Day (Tuesday of National Women’s Health Week)
- Top Gun Day
- Tulip Day
- World Cocktail Day
May 14
- Donate a Day’s Wages to Charity (Second Wednesday in May)
- International Dylan Thomas Day
- National Buttermilk Biscuit Day
- National Chicken Dance Day
- National Night Shift Workers Day (Second Wednesday in May)
- National Receptionists Day (Second Wednesday in May)
- National Root Canal Appreciation Day (Second Wednesday in May)
- National Third Shift Workers Day (Second Wednesday in May)
- Shades Day
- The Stars and Stripes Forever Day
- Underground America Day
- World Facilities Management Day (Wednesday of the Second Full Week in May)
May 15
- Bring Flowers to Someone Day
- Brown Bag It Thursday (Third Thursday in May)
- Dinosaur Day, and June 1
- Global Accessibility Awareness Day (Third Thursday in May)
- Hyperemisis Gravidarum Awareness Day
- International Conscientious Objector Day
- International Day of Families
- International Kangaroo Care Awareness Day
- International MPS Awareness Day
- National Aperitif Day (Third Thursday in May)
- National Chocolate Chip Day
- National Notebook Day (Third Thursday in May)
- National Nylon Stockings Day
- National Safety Dose Day
- National Senior Fraud Awareness Day
- National Stockings Day
- National Tuberous Sclerosis Day
- Peace Officers Memorial Day
- Relive Your Past by Listening to the First Music You Ever Bought No Matter What It Was no Excuses Day
- Straw Hat Day
- TSC Global Awareness Day (Tuberous Sclerosis Complex)
- VBF Day of Awareness
May 16
- Biographer’s Day
- Endangered Species Day (Third Friday in May)
- International Defense Transportation Day (Third Friday in May)
- International Pickle Day
- International Virtual Assistants Day (Third Friday in May)
- Love a Tree Day
- NASCAR Day (Third Friday in May)
- National Bike to Work Day (Third Friday in May)
- National Coquilles St. Jacques Day
- National Defense Transportation Day (Third Friday in May)
- National Mimosa Day
- National Piercing Day
- National Pizza Party Day (Third Friday in May)
- National Sea Monkey Day
- Nickel Day
- Wear Purple for Peace Day
May 17
- Armed Forces Day (Third Saturday in May)
- Culture Freedom Day (Third Saturday in May)
- Do Dah Day (Salute to Silliness) (Third Saturday in May)
- International Child Helpline Day
- International Day Against Homophobia, Transphobia, and Biphobia
- National Cherry Cobbler Day
- National Learn to Swim Day (Third Saturday of May – week before Memorial Day)
- National Mushroom Hunting Day
- National Pack Rat Day
- National River Cleanup Day (Third Saturday in May)
- National Walnut Day
- Pinot Grigio Day
- Plant a Lemon Tree Day (Third Saturday in May)
- Preakness (Third Saturday in May)
- World Fiddle Day (Third Saturday in May)
- World Hypertension Day
- World Information Society Day
- World Neurofibromatosis Day (NF Day)
- World Telecommunication and Information Society Day
- World Telecommunication Day
- World Whiskey Day (Third Saturday in May)
May 18
- Bay to Breakers Race in San Francisco, CA (Third Sunday in May)
- HIV Vaccine Awareness Day
- I Love Reese’s Day
- International Museum Day
- Mother Whistler Day
- National Cheese Souffle Day
- National Museum Day
- National No Dirty Dishes Day
- National Ride a Unicycle Day (Sunday of the 3rd Full Week in May)
- National Speech Pathologist Day
- National Visit Your Relatives Day
- Send an Electronic Greeting Card Day
- Stepmother’s Day (The Sunday after Mother’s Day)
- World Aids Vaccine Day
- World Baking Day (Third Sunday in May)
May 19
- Accounting Day
- Boys Club Day
- Celebrate Your Elected Officials Day
- Hepatitis Testing Day
- Malcolm X Day
- May Ray Day
- National Asian and Pacific Islander HIV/AIDS Awareness Day
- National Devil’s Food Cake Day
- Plant Something Day
- Supply Chain Professional Day (Third Monday in May)
- Victoria Day (Monday Prior to May 25th)
- World IBD Day
May 20
- Eliza Doolittle Day
- Emancipation Day (Florida)
- Everybody Draw Mohammed Day
- Flower Day
- International Clinical Trials Day
- Josephine Baker Day
- National Be a Millionaire Day
- National Quiche Lorraine Day
- National Rescue Dog Day
- Pick Strawberries Day
- Reduce Your Lawn Day
- Weights and Measure Day
- World Autoimmune Arthritis Day
- World Bee Day
- World Metrology Day
May 21
- American Red Cross Founder’s Day
- Emergency Medical Services Day (Third Wednesday in May)
- Emergency Medical Services for Children Day (Wednesday of EMS Week)
- End of the World or Rapture Party Day
- I Need a Patch for That Day
- International Tea Day
- National Employee Health and Fitness Day (Third Wednesday in May)
- National Juice Slush Day (Third Wednesday in May)
- National Memo Day
- National Strawberries and Cream Day
- National Waiters and Waitresses Day
- Sister Maria Hummel Day
- Turn Beauty Inside Out Day (Third Wednesday in May)
- World Day for Cultural Diversity for Dialogue and Development
- World Orienteering Day (Fourth Wednesday in May)
May 22
- Bitcoin Pizza Day
- Canadian Immigrants Day
- Eat More Fruits & Vegetables Day (Thursday of Memorial Day Week)
- Harvey Milk Day (California)
- International Day for Biological Diversity
- National Buy a Musical Instrument Day
- National Maritime Day
- National Solitaire Day
- National Vanilla Pudding Day
- Sherlock Holmes Day
- World Goth Day
May 23
- Carb Day (Friday before the Indy 500 Race)
- Declaration of the Bab Day (Bahai Faith)
- Don’t Fry Day (Friday Before Memorial Day)
- Heat Safety Awareness Day (Fourth Friday in May)
- International Day to End Obstetric Fistula
- International Turtle Day
- Lucky Penny Day
- National Cooler Day (Friday Before Memorial Day)
- National Death Busters Day (Friday Before Memorial Day)
- National Heat Safety Awareness Day (Fourth Friday in May)
- National Road Trip Day (Friday Before Memorial Day Weekend)
- National Taffy Day
- National Title Track Day (Fourth Friday in May)
- National Wig Out Day (Ten Days Before the First Monday in June)
- World Crohn’s and Colitis Day
- World Turtle Day
May 24
- Amateur Radio Military Appreciation Day (ARMAD) (Saturday of Memorial Day Weekend)
- Asparagus Day
- Aviation Maintenance Technician Day
- Brother’s Day
- International Heritage Breeds Day (Saturday of Third Full Week in May)
- International Jazz Day (Saturday of Memorial Day Weekend) Also observed on April 30 each year
- International Tiara Day
- International Women’s Day for Peace and Disarmament
- Julia Pierpont Day (Fourth Saturday in May)
- National Escargot Day
- National Heritage Breeds Day (Saturday of Third Full Week in May)
- National Italian Beef Day (Fourth Saturday in May)
- Scavenger Hunt Day
- World Schizophrenia Awareness Day
May 25
- African Liberation Day
- Geek Pride Day
- Indianapolis 500 (Sunday of Memorial Day weekend)
- National Brown-Bag-It Day
- National Missing Children’s Day
- National Tap Dance Day
- National Wine Day
- Towel Day
May 26
- Jefferson Davis Birthday (State of Mississippi)
- Memorial Day (Last Monday in May)
- National Blueberry Cheesecake Day
- National Cherry Dessert Day
- National Hamburger Day (Always Memorial Day, also May 28, July 28 and December 21)
- National Paper Airplane Day
- Prayer for Peace, Memorial Day (Last Monday in May / Same Day as Memorial Day)
- Sally Ride Day
- World Dracula Day
- World Lindy Hop Day
- World Red Head Day
May 27
- Cellophane Tape Day
- National Grape Popsicle Day
- National Gray Day
- Nothing to Fear Day
- Old Time Player Piano Day
- Sunscreen Protection Day
May 28
- Amnesty International Day
- International Hamburger Day
- Menstrual Hygiene Day
- National Brisket Day
- National Hamburger Day
- National Senior Health & Fitness Day (Last Wednesday in May)
- Slugs Return From Capistrano Day
- Whooping Crane Day
- World Otter Day (Last Wednesday in May)
May 29
- Ascension Day (of Jesus) (40th Day after Easter)
- Composting Day
- End of the Middle Ages Day
- International Day of United Nations Peacekeepers
- Learn About Composting Day
- National Biscuit Day
- National Coq Au Vin Day
- Paper Clip Day
- Pink Flamingo Day
- Put a Pillow on Your Fridge Day
- World Digestive Health Day
May 30
- European Neighbors’ Day (Last Friday in May)
- International Hug Your Cat Day
- Loomis Day
- My Bucket’s Got a Hole In It Day
- National Creativity Day
- National Mint Julep Day
- Water a Flower Day
- World MS Day (Multiple Sclerosis)
May 31
- National Autonomous Vehicle Day
- National Macaroon Day
- National Meditation Day
- National Save Your Hearing Day
- National Smile Day May 31
- National Speak in Complete Sentences Day
- Necrotizing Fasciitis Awareness Day
- What You Think Upon Grows Day
- World No-Tobacco Day
- World Parrot Day
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