May is the fifth month of the year and marks the heart of spring in the Northern Hemisphere. It has 31 days and hosts a total of 480 national and international observances, making it one of the most eventful months on the national days calendar. These celebrations span a wide range of topics—from food, wellness, and awareness campaigns to quirky and fun holidays.

Several well-known festivities take place in May.  is often recognized as International Workers’ Day, also known as May Day, which honors labor rights in many parts of the world. In the United States, one of the most widely celebrated holidays in May is Mother’s Day, which falls on the second Sunday of the month. It’s a time to recognize and appreciate the role of mothers and maternal figures in society. Another key observance is Memorial Day, held on the last Monday of May, dedicated to honoring fallen military personnel.

Several major celebrations take place in May. May 1st is often observed as International Workers’ Day (or May Day), which recognizes labor movements and workers’ rights around the world. In the United States, Mother’s Day, celebrated on the second Sunday of May, is one of the most widely observed holidays, honoring mothers and maternal figures. Another important day is National Teacher Appreciation Day, which falls on the Tuesday of the first full week in May. It’s a time to thank educators for their essential role in shaping minds and communities. The month concludes with Memorial Day on the last Monday of May, honoring military personnel who died in service.

The wide variety of observances makes it an ideal month for educational content, themed events, and social media campaigns.

International Days, National Days & Awareness Days in May 2025

There are well over a hundred national days and awareness days in May. Some of these days are always celebrated on the same date, while others follow a different rule, such as the first Monday of the month.

May 1

There are 26 national and international days on May 1st, honoring workers and principals to highlighting purebred dogs, rhino conservation, and even the art of guerrilla gardening.

  • Beltane (Gaelic May Day festival)
  • Couple Appreciation Day
    💗 There are dozens of national days dedicated to celebrating family, relationships and friends.
  • Frequent Flyer Day
  • Global Love Day
  • International Doodle Dog Day
  • International Sunflower Guerrilla Gardening Day
  • International Workers’ Day (May Day)
  • Law Day
  • Learn to Ride a Bike Day
  • National Black Barber Shop Appreciation Day
  • National Chocolate Parfait Day
  • National Day of Prayer* (First Thursday in May)
  • National Executive Coaches Day
  • National Loyalty Day
  • National Mother Goose Day
  • National Physicians’ Day (Canada 🇨🇦)
    🧑‍⚕️ The day shares a similar spirit with National Doctor’s Day (March 30) in the United States.
  • National Purebred Dog Day
  • National Rotate Your Beer Day
  • New Home Owners Day
  • Save the Rhino Day
  • School Principals’ Day
  • Silver Star Service Banner Day
  • Thank You Thursday* (6 days before the first Wednesday in May)
  • Therapeutic Massage Awareness Day
  • World Passkey Day* (First Thursday in May)
  • World Password Day* (First Thursday in May)

May 2

There are 13 national and international days on May 2nd, spanning topics from environmental awareness and childhood nutrition to wine grapes and even magical battles.

  • International Harry Potter Day
    🧙 This day is separate from Harry’s birthday, which falls on July 31.
  • International Scurvy Awareness Day
  • International Tuba Day* (First Friday in May)
  • National Brothers and Sisters Day
    ❤️ Similar in spirit to National Siblings Day on April 10.
  • National Life Insurance Day
  • National Play Your Ukulele Day
    🎸 A similar event, National Ukulele Day, is celebrated on February 2.
  • National Space Day* (First Friday in May)
  • National Truffle Day
  • No Pants Day* (First Friday in May): Despite the name, it’s about fun and humor—not nudity.
  • Sauvignon Blanc Day* (First Friday in May)
  • School Lunch Hero Day* (First Friday in May)
  • Take a Baby to Lunch Day
  • World Tuna Day
    🐟 Related observances include Tuna Rights Day on April 21, National Fish Day on August 27 and National Fish Farmers Day on July 10.

May 3

There are 28 national and international days on May 3rd, spanning topics from environmental awareness and childhood nutrition to wine grapes and even magical battles.

  • Astronomy Day* (First Saturday in May)
  • Beer Pong Day* (First Saturday in May)
  • Free Comic Book Day* (First Saturday in May)
  • International Sun Day
  • Join Hands Day* (First Saturday in May)
  • National Bombshells’ Day* (First Saturday in May)
  • National Chocolate Custard Day
  • National Fitness Day* (First Saturday in May)
    🖨️ I have designed a few trackers you might find useful: 30-Day Exercise Habit Tracker and 30-Day Stretching Habit Tracker.
  • National Garden Meditation Day
  • National Herb Day / Herb Day* (First Saturday in May)
  • National Homebrew Day* (First Saturday in May)
  • National Lumpy Rug Day
  • National Montana Day
  • National Paranormal Day
  • National Raspberry Popover Day / National Raspberry Tart Day
  • National SAN Architect Day
  • National Scrapbook Day* (First Saturday in May)
  • National Specially-abled Pets Day / Disabled Pets Day
  • National Start Seeing Monarchs Day* (First Saturday in May)
  • National Textiles Day
  • National Two Different Colored Shoes Day
  • Print Day in May* (First Saturday in May)
  • Wild Koala Day
  • Wildfire Community Preparedness Day* (First Saturday in May)
  • Wordsmith Day
  • World Labyrinth Day* (First Saturday in May)
  • World Naked Gardening Day* (First Saturday in May)
  • World Press Freedom Day
  • Write a Review Day

May 4

There are 23 national and international days on May 4th, from honoring firefighters and small business owners to enjoying orange juice, laughter, and even Jedi lore.

  • 45 Day / Forty Five Day
  • Bereaved Mother’s Day* (First Sunday in May)
  • Bird Day
  • International Dawn Chorus Day* (First Sunday in May)
  • International Firefighters’ Day
  • International Permaculture Day* (First Sunday in May)
  • International Respect for Chickens Day
  • Mayday for Mutts* (First Sunday in May)
  • Motorcycle Mass and Blessing of the Bikes Day* (First Sunday in May)
  • National Candied Orange Peel Day
  • National Day of Reason
  • National Infertility Survival Day* (Sunday before Mother’s Day)
  • National Kids Fitness Day
  • National Lemonade Day* (First Sunday in May)
  • National Orange Juice Day
  • National Renewal Day
  • National Self-Employed Day
  • National Star Wars Day
  • National Weather Observers Day
  • Petite and Proud Day
  • Relationship Renewal Day / Renewal Day
  • World Give Day
  • World Laughter Day* (First Sunday in May)

May 5

There are 19 national and international days on May 5th, highlighting topics ranging from cultural heritage and health awareness to sandwiches, sci-fi, and global languages.

  • African World Heritage Day
  • Cinco de Mayo
  • Great Lakes Awareness Day* (Monday of the first full week in May)
  • Hug a Shed and Take a Selfie Day
  • International Day of the Midwife
  • Melanoma Monday* (First Monday in May)
  • Museum Lover’s Day
    🛕 Similar celebrations include International Museum Day on May 18.
  • Nail Day
  • National Astronaut Day
  • National Bike to School Day* (Typically falls in early May)
  • National Cartoonists Day
  • National Concert Day
  • National Hoagie Day
  • National Meeting Planners Appreciation Day* (Monday of the first full week of May)
  • National Silence the Shame Day
  • National Totally Chipotle Day
  • Revenge of the Fifth
  • World Hand Hygiene Day
    🧼 A similar day, Global Handwashing Day, is celebrated on October 15th.
  • World Portuguese Language Day

May 6

There are 11 national and international days on May 6th, highlighting everything from nursing and teaching to body image, asthma awareness, and culinary traditions.

  • Childhood Depression Awareness Day * (First Tuesday in May)
  • International No Diet Day
  • National Beverage Day
  • National Crêpe Suzette Day
  • National Foster Care Day * (First Tuesday in May): Marks the start of National Foster Care Month
  • National Nurses Day
  • National Teacher Appreciation Day / National Teacher Day * (Tuesday during the first full week in May)
  • National Tourist Appreciation Day
    🌴 Complements National Tourism Day on May 7
  • No Homework Day
  • Poem on Your Pillow Day * (First Tuesday in May)
  • World Asthma Day * (First Tuesday in May)

May 7

There are 11 national and international days on May 7th, highlighting everything from nursing and teaching to body image, asthma awareness, and culinary traditions.

  • ACES Day * (First Wednesday in May)
    🏋️‍♀️ Aligns with National Physical Fitness and Sports Month and America’s National Physical Education Week.
  • Beaufort Scale Day
  • Bladder Cancer Awareness Day
  • Children’s Mental Health Awareness Day
  • Global Travel Advisor Day * (First Wednesday in May)
    🏝️ Similar days include National Tourism Day also happening on May 7 as well as World Tourism Day on September 27.
  • Great American Grump Out * (First Wednesday in May)
  • Love’s Baby Soft Day
  • National Anxiety Disorders Screening Day * (First Wednesday in May)
  • National Barrier Awareness Day
  • National Bike to School Day * (Changes annually in May)
  • National Cosmopolitan Day
    🍸 Related celebrations include National Cocktail Day on March 24. For more alcohol-themed days, visit the dedicated article.
  • National Interpreter Appreciation Day * (First Wednesday in May)
  • National Packaging Design Day
  • National Paste-Up Day
  • National Roast Leg of Lamb Day
  • National School Nurse Day * (Wednesday of National Nurses Week)
  • National Skilled Trades Day * (First Wednesday in May)
  • National Tourism Day
  • Occupational Safety and Health Professional Day * (Wednesday of the first full week in May)
  • World Carnivorous Plant Day * (First Wednesday in May)

May 8

There are 13 national and international days on May 8th, highlighting everything fromV-E Day, health awareness causes, food celebrations, and lighthearted ways to enjoy the day.

  • International Thalassaemia Day
  • Make a Book Day* (Wednesday of National Family Reading Week)
  • National Amyloidosis Day
  • National Coconut Cream Pie Day
    🥧 Similar days: National Pie Day, National Lemon Cream Pie Day and National Bavarian Cream Pie Day.
  • National Give Someone a Cupcake Day
  • National Have a Coke Day
  • National Student Nurse Day
  • No Socks Day
  • Reward Yourself Day
  • Victory in Europe Day / V-E Day / VE Day
  • World Donkey Day
  • World Ovarian Cancer Day
  • World Red Cross and Red Crescent Day

May 9

There are 14 national and international days on May 9th, from honoring childcare providers and European unity to appreciating Moscato wine, magnetic letters, and missing socks.

  • Europe Day
  • Fintastic Friday* (Second Friday in May)
  • Hurray for Buttons Day
  • National Alphabet Magnet Day
  • National Butterscotch Brownie Day
    🍫 A related day, National Brownie Day, is observed on December 8 and focuses on the chocolate variety.
  • National Home Front Heroes Day
  • National Knock Out Rose Day* (Friday before Mother’s Day)
  • National Lost Sock Memorial Day
  • National Military Spouse Appreciation Day* (Friday before Mother’s Day)
  • National Moscato Day
    🍷 For more wine-related holidays, see also our complete list of wine days.
  • National Public Gardens Day* (Friday before Mother’s Day)
  • National Provider Appreciation Day / National Child Care Provider Day*(Friday before Mother’s Day)
  • National Sleepover Day
  • Tear the Tags Off the Mattress Day

May 10

There are 27 national and international days on May 10th, from honoring intuitive decision-making and ocean conservation to belly dancing, brunch traditions, and cleaning out your room.

  • Brunch for Lunch Day * (Day before Mother’s Day)
  • Cornelia de Lange Syndrome Awareness Day * (Second Saturday in May)
  • International Day of Argania / Argania Day
  • Mother Ocean Day
    🌊 Similar to World Oceans Day celebrated on June 8.
  • National Archery Day * (Second Saturday in May)
  • National Babysitter’s Day * (Saturday before Mother’s Day)
  • National Birth Mother’s Day * (Saturday before Mother’s Day)
  • National Clean Up Your Room Day
    🧼 All cleaning and organizing national days gathered in one list.
  • National Dog Mom’s Day * (Second Saturday in May)
    🐶 This day complements National Pet Day on April 11 and National Dog Day on August 26.
  • National Lipid Day
  • National Miniature Golf Day * (Second Saturday in May)
    ⛳️ Separate from the global Miniature Golf Day on September 21
  • National Ship Via Rail Day
  • National Shrimp Day
  • National Small Business Day
  • National Train Day * (Second Saturday in May)
  • National Washington Day
  • National Windmill Day 🇬🇧* (Second Saturday in May)
  • One Day Without Shoes Day
  • Stamp Out Hunger Food Drive Day * (Second Saturday in May)
  • Stay Up All Night 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 Collage Day * (Second Saturday in May)
  • World Fair Trade Day * (Second Saturday in May)
  • World Lupus Day
  • World Migratory Bird Day * (Second Saturday in May in North America)
    🐦 A second observance takes place each October in the Southern Hemisphere.

May 11

There are 8 national and international days on May 11th, from honoring snack food nostalgia and self-care to deeper topics like animal rights and ego awareness.

  • Hostess CupCake Day
  • Mother’s Day* (Second Sunday of May)
  • National Eat What You Want Day
  • National Foam Rolling Day
  • National Twilight Zone Day
  • National Veal Ban Action Day* (Second Sunday of May)
  • World Ego Awareness Day
  • World Topiary Day* (date may vary)

May 12

There are 13 national and international days on May 12th. A large portion of today’s observances focus on health and well-being—from honoring nurses and hospitals to raising awareness for chronic illnesses and encouraging regular checkups.

  • International Day of Plant Health / Plant Health Day
  • International ME/CFS Awareness Day
  • International Nurses Day
  • National Fibromyalgia Awareness Day
  • National Hospital Day
  • National Limerick Day
  • National Mental Health Provider Appreciation Day
  • National Nutty Fudge Day
    🍫 Similar sweet celebrations include National Fudge Day on June 16 and National Chocolate Day on October 28.
  • National Odometer Day
  • National Sapphire Segulah Day
  • National Tampon Day
  • National Women’s Checkup Day* (Second Monday in May)
    💊 This day complements similar awareness events like Cervical Health Awareness Month in January and Breast Cancer Awareness Month in October.
  • National YA DIG Day

May 13

There are 9 national and international days on May 13th, ranging from honoring foods like hummus and apple pie, to project management recognition and pop culture tributes.

May 14

There are 16 national and international days on May 14th, ranging from classic American marches and biscuits to appreciation for third-shift workers, Chihuahuas, and even root canals.

  • Bond With Your Dog Day
    🐾 For more dogs, cats, and pets national days, visit the dedicated pages or use the search feature on our website to find exactly what you’re looking for!
  • Donate A Day’s Wages To Charity Day* (Second Wednesday in May)
  • International Chihuahua Appreciation Day
  • National Buttermilk Biscuit Day
  • National Dance Like a Chicken Day
  • National Decency Day
  • National Receptionists’ Day* (Second Wednesday in May)
  • National Third Shift Workers Day* (Second Wednesday in May)
  • National Travel Insurance Claims Day
  • National Underground America Day
  • Online Romance Day
  • Root Canal Appreciation Day* (Second Wednesday in May)
  • Spinal Cord Injury Awareness Day 🇬🇧
    🩻 A related observance, Spinal Cord Injury Day, is held on September 5 globally.
  • Stars and Stripes Forever Day
  • World Facilities Management Day* (Wednesday of the second full week of May)
  • World Stationery Day* (Wednesday of National Stationery Week)

May 15

There are 20 national and international days on May 15th, bringing attention to everything from digital accessibility and maternal care to law enforcement remembrance and delicious chocolate chips.

May 16

There are 25 national and international days on May 16th, bringing attention to everything from art, food, science, equality, and even novelty pets, and offering something meaningful—or just fun—for nearly everyone.

  • Drawing Day
  • Hats for Headway Day 🇬🇧* (Third Friday in May)
  • Honor Our LGBT Elders Day
  • International Boys Day
  • International Day of Light
  • International Day of Living Together in Peace
  • International Invention Day
    💡 Related observances include National Inventors Day on February 11, National Kid Inventors Day on January 17, and National Inventors Month in August.
  • International Virtual Assistants Day* (Third Friday in May)
  • NASACAR Day* (Third Friday in May)
  • National Barbecue Day
  • National Biographer’s Day
  • National Bike to Work Day* (Third Friday in May)
    🚲 Related events include World Bicycle Day on June 3 and Bike to School Day in early May.
  • National Classic Movie Day
    🎥 Related days include National Film Score Day on April 3 and Global Movie Day celebrated on the second Saturday in February.
  • National Coquilles Saint Jacques Day
  • National Defense Transportation Day* (Third Friday in May)
  • National Do Something Good for Your Neighbor Day
  • National Endangered Species Day* (Third Friday in May):
  • National Love a Tree Day
  • National Mimosa Day
    🍸 Related celebrations include National Cocktail Day on March 24. For more alcohol-themed days, visit the dedicated article.
  • National Piercing Day
  • National Pizza Party Day* (Third Friday in May)
  • National Sea Monkey Day
  • Nickel Day
    🧪 Related observances include National Periodic Table Day on February 7 and National Chemistry Week in October.
  • Tarlov Cyst Disease Awareness Day
  • Wear Purple for Peace Day

May 17

There are 21 national and international days on May 17th, bringing attention to everything from sweet desserts and national pride to global awareness campaigns and cultural celebrations.

  • Armed Forces Day * (Third Saturday in May)
  • Culture Freedom Day * (Third Saturday in May)
  • Day Against Homophobia
  • International Heritage Breeds Day * (End of the third week in May)
  • National Cherry Cobbler Day
  • National Graduation Tassel Day
  • National Idaho Day
  • National Learn to Swim Day * (Third Saturday in May)
  • National Mushroom Hunting Day
  • National Pack Rat Day
  • National Pinkfix Day
  • National Pinot Grigio Day
    🍷 See also our complete list of 70+ wine-related national days.
  • National River Cleanup Day * (Third Saturday in May)
  • National Walnut Day
  • Plant a Lemon Tree Day * (Third Saturday in May)
  • World Fiddle Day * (Saturday closest to May 19)
  • World Hypertension Day
  • World Neurofibromatosis Awareness Day
  • World Telecommunication and Information Society Day
  • World Whisky Day * (Third Saturday in May)
    🍹 Other related observances include National Scotch Day on July 27, Bourbon Heritage Month in September and International Whiskey Day on March 27.
  • National Work from Home Day 🇬🇧

May 18

There are 14 national and international days on May 18th, paying tributes to public health, baked goods, playgrounds, musical talents, and even chocolate and peanut butter candies.

  • I Love Reese’s Day
  • International AIDS Candlelight Memorial * (Third Sunday in May)
  • International Museum Day
  • Mother Whistler Day
  • National Cheese Soufflé Day
  • National HIV Vaccine Awareness Day
  • National No Dirty Dishes Day
  • National Speech-Language Pathologist Appreciation Day
  • National Take Your Parents to the Playground Day * (Third Sunday in May)
  • National Visit Your Relatives Day
  • Ride a Unicycle Day * (Sunday of the Third Full Week of May)
  • Rural Life Sunday * (Third Sunday in May)
  • Stepmother’s Day * (Sunday after Mother’s Day)
  • World Baking Day * (Third Sunday in May)

May 19

There are 10 national and international days on May 19th, spanning from public health, food, gardening, music history, and more.

  • Celebrate Your Elected Officials Day
  • Hepatitis Testing Day
  • National Devil’s Food Cake Day
    🍫 Curious about all 70+ national chocolate-themed national days? We have compile a special list for you!
  • National May Ray Day
  • National Mechanical Dry Eye Day
  • National Roadie Day
  • Plant Something Day
  • Supply Chain Professionals Day * (Third Monday in May)
  • World Family Doctor Day
  • World IBD Day

May 20

There are 16 national and international days on May 20th, ranging from scientific milestones and culinary traditions to social causes and pop culture celebrations.

  • Clinical Trials Day
  • International Academic Freedom Day
  • International Dinosaur Day* (Celebrated twice a year: on the third Tuesday of May and on June 1st).
  • International Red Sneakers Day
  • National Band Director’s Day
  • National Be a Millionaire Day
    💰 I have designed dozens of free savings trackers you can download on DigitalHygge for free.
  • National High Heel Day
    👠 Similar days that encourage self-expression through clothing are: National Dress Day on March 6, National Hat Day on January 15, and National Scarf Day on September 27.
  • National Pick Strawberries Day
    🍓 This day complements National Strawberry Day on February 27, which marks the symbolic start of strawberry season.
  • National Quiche Lorraine Day
  • National Rescue Dog Day
  • National Streaming Day
  • National SugarBee® Apple Day
    🍎 Other apple-themed observances are: National Apple Day on October 21 and National Eat a Red Apple Day on December 1.
  • National Women in Aerospace Day
    👩 Related observances include International Women in Engineering Day on June 23 and International Day of Women and Girls in Science on February 11.
  • World Autoimmune Arthritis Day
    🩻 A similar observance is World Arthritis Day on October 12.
  • World Bee Day
  • World Metrology Day / Weights & Measures Day

May 21

There are 18 national and international days on May 21st, spanning everything from sustainable fishing and cultural diversity to strawberries, slushies, and even sci-fi swords.

  • Cool Sword Day
  • Eat More Fruits and Vegetables Day*
    🌱 See also our separate list of national days dedicated to vegetarian and vegan diets.
  • Emergency Medical Services for Children Day* (Third Wednesday in May)
  • I Need A Patch For That Day
  • International Customer Support Day* (Third Wednesday in May)
  • International Tea Day
  • National American Red Cross Founder’s Day
  • National Employee Health and Fitness Day* (Third Wednesday in May)
  • National Juice Slush Day* (Third Wednesday in May)
  • National Memo Day
  • National Numeracy Day* (Third Wednesday in May)
  • National Strawberries and Cream Day
  • National Talk Like Yoda Day
  • National Waitstaff Day / National Waiters and Waitresses Day
  • Turn Beauty Inside Out Day* (Third Wednesday in May)
  • World Day for Cultural Diversity for Dialogue and Development
  • World Fish Migration Day* (celebrated every other year on May 21)
  • World Product Day* (Third or Fourth Wednesday in May)

May 22

There are 15 national and international days on May 22nd, spanning everything from honoring the biodiversity of our planet to recognizing legendary fictional detectives, classic desserts, and signature drinks.

  • Bitcoin Pizza Day
    🍕 See the complete list of national days dedicated to pizza.
  • Chardonnay Day* (Thursday before the last Monday in May)
  • International Coco Mom Day
  • International Day for Biological Diversity
  • National Boss Babe Day
  • National Buy a Musical Instrument Day
  • National Craft Distillery Day
  • National Maritime Day
  • National Solitaire Day
  • National Vanilla Pudding Day
  • National Wig Out Day* (10 days before the first Monday in June)
  • Sherlock Holmes Day
  • World Goth Day
  • World Paloma Day
    🍸 Related celebrations include National Cocktail Day on March 24. For more alcohol-themed days, visit the dedicated article.
  • World Preeclampsia Day

May 23

There are 11 national and international days on May 23rd, ranging from lighthearted celebrations of candy and chickens to more serious calls for awareness around sun safety and maternal health.

  • International Day to End Obstetric Fistula
  • Medical Coder Day
  • National Cooler Day* (Friday before Memorial Day)
  • National Death Busters Day* (Friday before Memorial Day)
  • National Don’t Fry Day* (Friday before Memorial Day)
  • National Drinking with Chickens Day
  • National Lucky Penny Day
  • National Road Trip Day* (Friday before Memorial Day)
  • National Taffy Day
  • National Title Track Day* (Fourth Friday in May)
  • World Turtle Day

May 24

There are 15 national and international days on May 24th, highlighting everything from international peace efforts and nature conservation to tiaras and tasty hot dogs.

  • Amateur Radio Military Appreciation Day* (9 days before the first Monday in June)
  • Aviation Maintenance Technician Day
  • Día del Completo
  • European Day of Parks
  • International Tiara Day / National Tiara Day
  • International Women’s Day for Peace and Disarmament
  • National Asparagus Day: While some sources list the day on April 23, it aligns naturally with May’s designation as National Asparagus Month and the peak harvest season in the U.S.
  • National Brother’s Day
    🤗 See the complete list of national days dedicated to family.
  • National Caterers Appreciation Day
  • National Escargot Day
  • National Italian Beef Day* (Fourth Saturday in May)
  • National Scavenger Hunt Day
  • National Wyoming Day
  • National Yucatán Shrimp Day
  • World Schizophrenia Day

May 25

There are 14 national and international days on May 25th, spanning awareness campaigns, geek culture, musical traditions, and health initiatives—making it a day as diverse as it is meaningful.

  • Geek Pride Day
  • International Plastic Free Day
  • International Skin Pigmentation Day
  • National Bath Bomb Day
    🛀 Similar events are: World Bath Bomb Day on April 27 (founded by Lush), as well as National Bubble Bath Day celebrated every January 8.
  • National Brown-Bag-It Day
  • National Family Fun Day* (Sunday before Memorial Day)
  • National Missing Children’s Day
  • National Sing Out Day
  • National Tap Dance Day
  • National VTuber Day
    🎥 A similar observance, International Vlogging Day, is held on August 10.
  • National Wine Day
  • Towel Day
  • Victoria Day 🇨🇦* (Monday before May 25)
  • World Thyroid Day

May 26

There are 8 national and international days on May 26th, spanning sweet desserts and paper airplanes to cultural observances, global dance celebrations, and a solemn U.S. remembrance day.

  • Memorial Day* (Last Monday in May)
  • National Blueberry Cheesecake Day
    🍰 A related food day, National Cheesecake Day, is observed on July 30.
  • National Cherry Dessert Day
  • National Paper Airplane Day
  • National Sorry Day 🇦🇺
  • World Dracula Day
  • World Lindy Hop Day
  • World Redhead Day
    🧑‍🦰 There are numerous national days celebrating red-hued hair including: National Redhead Day on November 5, Redhead Appreciation Day on September 23 and International Kiss A Ginger Day on January 12.

May 27

There are 8 national and international days on May 27th, ranging from cellophane tape invention and musical nostalgia to skin protection and facing fear.

  • National Cellophane Tape Day
  • National Grape Day
  • National Grape Popsicle Day
    🍦 See also the full list of ice cream national days.
  • National Gray Day: Part of National Brain Cancer Awareness Month
  • National Sunscreen Day
  • Nothing to Fear Day
  • Old Time Player Piano Day
  • World Marketing Day

May 28

There are 14 national and international days on May 28th. The observances on this day range from quirky food celebrations to powerful calls for human rights, environmental action, and public health awareness.

  • Amnesty International Day
  • International Day of Action for Women’s Health / International Women’s Health Day
  • Menstrual Hygiene Day
  • National Beef Burger Day
  • National Brisket Day
  • National Flip Flop Day* (Wednesday after Memorial Day)
  • National Hamburger Day / International Burger Day: Mark the end of National Burger Month
    There is also a separate UK-edition of the National Burger Day 🇬🇧 observed annually on the Thursday before the August Bank Holiday.
  • National Multiple Births Awareness Day
  • National Senior Health & Fitness Day* (Last Wednesday in May)
  • Passion Fruit Martini Day
  • Slugs Return From Capistrano Day
  • Whooping Crane Day
  • World Hunger Day
  • World Otter Day* (Last Wednesday in May)

May 29

There are 14 national and international days on May 29th. Today’s observances highlight everything from historic milestones and scientific innovation to compost, paperclips, and tiger nuts.

  • International Day of UN Peacekeepers
  • International Everest Day
  • Learn About Composting Day
  • National 529 Day
  • National Alligator Awareness Day
  • National Biscuit Day
  • National Coq Au Vin Day
  • National Hydroxyapatite Day
  • National Paperclip Day
    📎 For more stationery related national days, please visit our dedicated list.
  • National Snail Day
  • Oak Apple Day / Royal Oak Day
  • Put a Pillow on Your Fridge Day
  • World Digestive Health Day
  • World Tiger Nut Day

May 30

There are 11 national and international days on May 30th. This day’s observances highlight everything from heat safety and neurological awareness to community building, electric bikes, and potatoes.

  • European Neighbors’ Day* (Last Friday in May)
  • Fakesgiving
  • International Potato Day
    🥔 Similar days: National Tater Day on March 31st and National Potato Day on August 19st.
  • Loomis Day
  • National Creativity Day
  • National E-Bike Day
  • National Heat Awareness Day* (Last Friday in May)
  • National Hole in My Bucket Day
  • National Mint Julep Day
  • National Water a Flower Day
  • World Multiple Sclerosis Day

May 31

There are 15 national and international days on May 31st. Today’s observances cover a wide range of topics—from wildlife protection and mental wellness to coconut cookies and emerging technology.

  • Infidelity Hurts Awareness Day
  • International Flight Attendant Day / International Cabin Crew Day
  • National Autonomous Vehicle Day
  • National Caesar Day* (Thursday before Victoria Day in May)
    🍸 Related celebrations include National Cocktail Day on March 24. For more alcohol-themed days, visit the dedicated article.
  • Necrotizing Fasciitis Awareness Day
  • National Macaroon Day
  • National Save Your Hearing Day
  • National Smile Day
  • National Speak in Complete Sentences Day
  • National Utah Day
  • What You Think Upon Grows Day
  • Web Designer Day
  • World Foster Day
  • World No Tobacco Day
    🚬 If you are on your journey to quit smoking, download my free 30-day no smoking challenge tracker.
  • World Parrot Day

National Weeks in May

  • May 4-10, 2025: National Pet Week
  • May 5-9, 2025: Teacher Appreciation Week

National Months in May

  • National Egg Month
  • National Foster Care Month
  • National Hamburger Month
  • National Mediterranean Diet Month
  • National Pet Month (USA)
  • National Physiotherapy Month
  • National Salad Month
  • National Salsa Month
  • National Strawberry Month
  • National Teen Self-Esteem Month

I hope you found what you were looking for! Let us know if you think we have missed an important holiday. If you are looking for fun national days in the upcoming months, have a look at these articles:

Categorized in:

National Days,

Last Update: May 27, 2025