| Date | Holiday | Category | Country |
|---|---|---|---|
| 1 | Global Love Day | Family & Relationship | World |
| 1 | May Day | History | Some countries |
| 1 | World Naked Gardening Day | Fun | World |
| 1 | Free Comic Book Day | Art & Entertainment | – |
| 1 | Beltane a.k.a. Gaelic May Day festival | History | Ireland |
| 1 | Join Hands Day | Cause, Motivational | USA |
| 1 | Law Day | History | USA |
| 1 | National Bombshells’ Day | Motivational, Family & Relationship | USA |
| 1 | National Chocolate Parfait Day | Food & Drinks | USA |
| 1 | National Homebrew Day | Food & Drinks | USA |
| 1 | National Loyalty Day | History | USA |
| 1 | National Mother Goose Day | Art & Entertainment | USA |
| 1 | National Play Outside Day | Fun, Family & Relationship | USA |
| 1 | School Principals’ Day | Career & Work | USA |
| 1 | National Scrapbook Day | Art & Entertainment | USA |
| 2 | International Harry Potter Day | Art & Entertainment | World |
| 2 | World Laughter Day | Fun | World |
| 2 | World Tuna Day | Nature & Environment | UN, World |
| 2 | Bloomsday Run | Fun | USA |
| 2 | National Brothers and Sisters Day | Family & Relationship | – |
| 2 | National Infertility Survival Day | Health, Cause | USA |
| 2 | National Lemonade Day (note: not the drink!) | Motivational | USA |
| 2 | National Life Insurance Day | Health | USA |
| 2 | National Truffle Day | Food & Drinks | USA |
| 3 | World Press Freedom Day | Cause | UN, World |
| 3 | May Day a.k.a. Labour Day | Career & Work, History | World, Europe |
| 3 | Melanoma Monday | Health | World |
| 3 | Early May Bank Holiday | History | UK |
| 3 | National Chocolate Custard Day | Food & Drinks | USA |
| 3 | National Garden Meditation Day | Fun | USA |
| 3 | National Lumpy Rug Day | Fun | USA |
| 3 | National Paranormal Day | Fun | USA |
| 3 | National Raspberry Pop Over Day a.k.a. National Raspberry Tart Day | Food & Drinks | USA |
| 3 | National Specially-Able Pets Day a.k.a. Disabled Pets Day | Pets | USA |
| 3 | National Textiles Day | History, Fashion & Beauty | USA |
| 3 | National Two Different Colored Shoes Day | Fun | USA |
| 4 | Bird Day | Nature & Environment | USA |
| 4 | Greenery Day a.k.a. みどりの日, Midori no Hi | Nature & Environment | Japan |
| 4 | International Firefighters’ Day | Career & Work | World |
| 4 | World Asthma Day | Health | World |
| 4 | National Candied Orange Peel Day | Food & Drinks | USA |
| 4 | National Foster Care Day | Family & Relationship | USA |
| 4 | National Orange Juice Day | Food & Drinks | USA |
| 4 | National Renewal Day | Motivational | USA |
| 4 | National Star Wars Day | Art & Entertainment | USA |
| 4 | National Teacher Appreciation Day | Career & Work, Education & School | USA |
| 4 | National Weather Observers Day | Fun, Career & Work | USA |
| 5 | African World Heritage Day | History | UN, World |
| 5 | Cinco de Mayo | History | USA, Mexico |
| 5 | International Day of the Midwife | Career & Work | World |
| 5 | World Portuguese Language Day | History | UN, World |
| 5 | National Astronaut Day | Career & Work | USA |
| 5 | National Bike To School Day | Nature & Environment | USA |
| 5 | National Cartoonists Day | Career & Work, Art & Entertainment | USA |
| 5 | National Hoagie Day | Food & Drinks | USA |
| 5 | National Interpreter Appreciation Day | Career & Work | USA |
| 5 | National Silence the Shame Day | Health | USA |
| 5 | National Skilled Trades Day | Career & Work | USA |
| 5 | National Totally Chipotle Day | Food & Drinks | USA |
| 6 | International No Diet Day | Cause, Health | World |
| 6 | World Password Day | Cause | World |
| 6 | National Beverage Day | Food & Drinks | USA |
| 6 | National Crêpe Suzette Day | Food & Drinks | USA |
| 6 | National Day of Prayer | Motivational | USA |
| 6 | National Day of Reason | Motivational | USA |
| 6 | National Nurses Day | Career & Work | USA |
| 6 | National School Nurse Day | Career & Work | USA |
| 7 | International Sauvignon Blanc Day | Food & Drinks | World |
| 7 | National Barrier Awareness Day | Cause | USA |
| 7 | National Military Spouse Appreciation Day | Family & Relationship | USA |
| 7 | National Packaging Design Day | Career & Work, Art & Entertainment | USA |
| 7 | National Provider Appreciation Day | Family & Relationship | USA |
| 7 | National Roast Leg of Lamb Day | Food & Drinks | USA |
| 7 | National Space Day | Career & Work, Education & School | USA |
| 7 | School Lunch Hero Day | Career & Work | USA |
| 8 | Cornelia De Lange Syndrome Awareness Day | Health | World |
| 8 | International Thalassaemia Day | Health | World |
| 8-9 | Time of Remembrance and Reconciliation | History | UN, World |
| 8 | Victory In Europe Day a.k.a. V-E Day or VE Day | History | Europe |
| 8 | World Fair Trade Day | History | World |
| 8 | World Migratory Bird Day | Nature & Environment | World |
| 8 | World Red Cross and Red Crescent Day | Cause | World |
| 8 | National Archery Day | History, Fun | USA |
| 8 | National Babysitter’s Day | USA | |
| 8 | National Birth Mother’s Day | Family & Relationship | USA |
| 8 | National Dog Mom’s Day | Pets | USA |
| 8 | National Have A Coke Day | Food & Drinks | USA |
| 8 | National Student Nurse Day | Career & Work | USA |
| 8 | National Train Day | History, Career & Work | US |
| 8 | National Tree Planting Day | Nature & Environment | Mongolia |
| 9 | Europe Day | History | Europe |
| 9 | Mother’s Day | Family & Relationship | USA, AUS, Canada, some European countries |
| 8-9 | Time of Remembrance and Reconciliation | History | World |
| 9 | National Lost Sock Memorial Day | Fun | USA |
| 9 | National Moscato Day | Food & Drinks | USA |
| 9 | National Sleepover Day | Family & Relationship | USA |
| 10 | World Lupus Day | Health | World |
| 10 | National Clean Up Your Room Day | Fun, Motivational | USA |
| 10 | National Shrimp Day | Food & Drinks | USA |
| 11 | Eat What You Want Day | Food & Drinks | USA |
| 11 | National Foam Rolling Day | Health | USA |
| 11 | National Twilight Zone Day | Art & Entertainment | USA |
| 12 | International Nurses Day | Career & Work | World |
| 12 | National Fibromyalgia Awareness Day | Health | USA |
| 12 | National Numeracy Day | Education & School | UK |
| 12 | National Receptionists’ Day | Career & Work | USA |
| 12 | National School Nurse Day | Career & Work | USA |
| 12 | National Third Shift Workers Day | Career & Work | USA |
| 13 | Ascension Day | History | Christian |
| 13 | International Hummus Day | Food & Drinks | World |
| 13 | World Cocktail Day | Food & Drinks | World |
| 13 | National Apple Pie Day | Food & Drinks | USA |
| 14 | National Buttermilk Biscuit Day | Food & Drinks | USA |
| 14 | National Dance Like a Chicken Day | Fun | USA |
| 15 | Astronomy Day | Career & Work, Education & School | World |
| 15 | International Day of Families | Family & Relationship | UN, World |
| 15 | World Whisky Day | Food & Drinks | World |
| 15 | National Chocolate Chip Day | Food & Drinks | USA |
| 15 | National Learn to Swim Day | Fun, Health | USA |
| 15 | Peace Officers Memorial Day | Cause | USA |
| 16 | International Day of Light | History | UN, World |
| 16 | International Day of Living Together in Peace | Cause | UN, World |
| 16 | World Baking Day | Food & Drinks | World |
| 16 | National Barbecue Day | Food & Drinks | USA |
| 16 | National Children’s Day | Family & Relationship | UK |
| 16 | National Do Something Good for Your Neighbor Day | Fun, Family & Relationship | USA |
| 16 | National Love a Tree Day | Nature & Environment | USA |
| 16 | National Piercing Day | Fashion & Beauty | USA |
| 16 | National Sea Monkey Day | Nature & Environment | USA |
| 16 | Take Your Parents To The Playground Day | Fun, Family & Relationship | USA |
| 17 | World Hypertension Day | Health | WTO, World |
| 17 | World Telecommunication and Information Society Day | Career & Work | UN, World |
| 17 | National Walnut Day | Food & Drinks | USA |
| 18 | International Museum Day (IMD) | Fun, Art & Entertainment | World |
| 18 | National Cheese Soufflé Day | Food & Drinks | USA |
| 18 | National HIV Vaccine Awareness Day | Health | USA |
| 18 | National No Dirty Dishes Day | Food & Drinks | USA |
| 18 | National Visit Your Relatives Day | Family & Relationship | USA |
| 19 | Emergency Medical Services for Children Day a.k.a. EMSC Day | Career & Work | USA |
| 19 | World IBD Day | Health | World |
| 19 | National Devil’s Food Cake Day | Food & Drinks | USA |
| 19 | National Juice Slush Day | Food & Drinks | USA |
| 19 | National May Ray Day | Fun | USA |
| 20 | World Bee Day | Nature & Environment | World |
| 20 | World Metrology Day | Career & Work | World |
| 20 | National Be a Millionaire Day | Career & Work, Motivational | USA |
| 20 | National Caesar Day | Food & Drinks | Canada |
| 20 | National Hummus Day | Food & Drinks | USA |
| 20 | National Pick Strawberries Day | Food & Drinks | USA |
| 20 | National Rescue Dog Day | Pets | USA |
| 21 | International Tea Day | Food & Drinks | UN, World |
| 21 | World Day for Cultural Diversity for Dialogue and Development | Cause | UN, World |
| 21 | Bike To Work Day | Nature & Environment, Career & Work | USA |
| 21 | National American Red Cross Founder’s Day | History | USA |
| 21 | National Defense Transportation Day | Career & Work | USA |
| 21 | National Endangered Species Day | Nature & Environment | USA |
| 21 | National Pizza Party Day | Food & Drinks | USA |
| 21 | National Memo Day | Fun, Career & Work | USA |
| 21 | National Strawberries and Cream Day | Food & Drinks | USA |
| 21 | National Waitstaff Day | Career & Work | USA |
| 21 | NASCAR Day | Fun | USA |
| 22 | International Biodiversity Day | Nature & Environment | UN, World |
| 22 | Sherlock Holmes Day | Art & Entertainment | World |
| 22 | World Goth Day | Fashion & Beauty | World |
| 22 | World Paloma Day | Food & Drinks | World |
| 22 | Harvey Milk Day | History, LGBTQ | USA |
| 22 | National Buy a Musical Instrument Day | Art & Entertainment | USA |
| 22 | National Craft Distillery Day | Food & Drinks | USA |
| 22 | National Maritime Day | History | USA |
| 22 | National Solitaire Day | Fun | USA |
| 22 | National Vanilla Pudding Day | Food & Drinks | USA |
| 23 | International Day to End Obstetric Fistula | Cause | UN, World |
| 23 | Pentecost | History | Christian |
| 23 | World Turtle Day | Animals | World |
| 23 | National Lucky Penny Day | Fun | USA |
| 23 | National Taffy Day | Food & Drinks | USA |
| 24 | European Day of Parks #ParksForHealth |
Nature & Environment | Europe |
| 24 | Victoria Day | History | Canada |
| 24 | World Schizophrenia Day | Health | World |
| 24 | National Brother’s Day | Family & Relationship | USA |
| 24 | National Escargot Day | Food & Drinks | USA |
| 24 | National Scavenger Hunt Day | Fun | USA |
| 25 | Africa Day | Cause | World |
| 25 | Geek Pride Day | Fun | World |
| 25 | International Missing Children’s Day | Cause | World |
| 25 | Towel Day | Art & Entertainment | World |
| 25 | National Missing Children’s Day | Cause | USA |
| 25 | National Tap Dance Day | Art & Entertainment | USA |
| 25 | National Wine Day | Food & Drinks | USA |
| 26 | Buddha’s Birthday a.k.a. Wesak Day | History | World |
| 26 | National Blueberry Cheesecake Day | Food & Drinks | USA |
| 26 | National Paper Airplane Day | Fun | USA |
| 26 | National Senior Health & Fitness Day | Health | USA |
| 27 | Sunscreen Protection Day | Health, Fashion & Beauty | World |
| 27 | National Grape Popsicle Day | Food & Drinks | USA |
| 28 | Don’t Fry Day | Health, Fashion & Beauty | USA |
| 28 | National Brisket Day | Food & Drinks | USA |
| 28 | National Cooler Day | Fun | USA |
| 28 | National Hamburger Day | Food & Drinks | USA |
| 28 | National Road Trip Day | Fun | USA |
| 29 | International Day of UN Peacekeepers | Career & Work | UN, World |
| 29 | National Paperclip Day | Fun | USA |
| 30 | Día del Arbol (Day of the Tree) | Nature & Environment | Venezuela |
| 30 | World Multiple Sclerosis Day | Health | World |
| 30 | National Creativity Day | Fun | USA |
| 30 | National Mint Julep Day | Food & Drinks | USA |
| 30 | National Water a Flower Day | Nature & Environment | USA |
| 31 | Brothers and Sisters Day | Family & Relationship | Europe |
| 31 | International Flight Attendant Day | Career & Work | World |
| 31 | Memorial Day | History | USA |
| 31 | World No Tobacco Day | Health | WHO, World |
| 31 | National Macaron Day | Food & Drinks | USA |
| 31 | Spring Bank Holiday | History | UK |
Social Media Holidays in May 2021
Courtesy: Digital Hygge
