May Holidays and Observances in 2026
May 1 38
Save The Rhino Day
Save The Rhino Day raises awareness about the threats facing rhinoceroses and promotes global conservation efforts to protect animals.
International Workers' Day
International Workers' Day honors the labor movement and the struggle for workers' rights annually on May 1.
May Day
May Day is an annual celebration of spring and international labor rights observed on May 1.
Vesak (Buddha’s birth)
Discover the significance of Vesak, celebrated on the first full moon of May, honoring the birth, enlightenment, and passing of Gautama Buddha.
International Doodle Dog Day
Celebrate International Doodle Dog Day on May 1 and honor the joy doodle dogs bring.
Global Love Day
Global Love Day promotes unconditional love and unity across the world annually on May 1.
International Sunflower Guerilla Gardening Day
Celebrate International Sunflower Guerrilla Gardening Day on May 1 by planting sunflowers in neglected urban spaces.
Lei Day
Lei Day is a celebration of Hawaiian culture and the aloha spirit held annually on May 1.
International Phone in Sick Day
International Phone in Sick Day is an annual worker's protest held every May 1 to promote leisure and work-life balance.
International Tuba Day
International Tuba Day honors the musicians of the brass family’s largest instrument on the first Friday of May.
New Home Owners Day
New Home Owners Day celebrates the achievement of purchasing a house annually on May 1.
Worthy Wage Day
Worthy Wage Day is a national day of action for early childhood educator pay equality observed annually on May 1.
EuroMayDay
EuroMayDay is a European labor movement focused on the rights of precarious workers observed annually on May 1.
Therapeutic Massage Awareness Day
Therapeutic Massage Awareness Day is celebrated every May 1 to promote the health and pain-relief benefits of massage.
International Sauvignon Blanc Day
International Sauvignon Blanc Day is a global holiday celebrated on the first Friday in May to honor the popular and versatile white wine grape.
Executive Coaching Day
Executive Coaching Day honors the professional mentors who guide corporate leaders annually on May 1.
National No Pants Day
National No Pants Day is an annual observance that falls on the first Friday of May, primarily celebrated in the United States.
School Principals' Day
School Principals' Day is celebrated every May 1 to honor the leadership and dedication of school administrators.
CSS Reboot Day
CSS Reboot Day is a global celebration of web design and standards observed annually on May 1.
School Lunch Hero Day
School Lunch Hero Day is observed on the first Friday in May to honor school nutrition staff.
National Space Day
National Space Day is celebrated on the first Friday in May to promote space exploration and STEM education.
Law Day
Law Day celebrates the role of the rule of law in American democracy annually on May 1.
Learn to Ride a Bike Day
Learn to Ride a Bike Day encourages people to master the skill of cycling every year on May 1.
National Chocolate Parfait Day
National Chocolate Parfait Day celebrates the layered French-inspired dessert every year on May 1.
National Mother Goose Day
National Mother Goose Day honors the imaginary author of children's nursery rhymes annually on May 1.
Couple Appreciation Day
Couple Appreciation Day is observed annually on May 1. This day is a dedicated opportunity for partners to pause their busy schedules and express genuine gratitude for one another. It…
National Loyalty Day
National Loyalty Day is a patriotic observance held every May 1 to reaffirm allegiance to the United States.
National Rotate Your Beer Day
National Rotate Your Beer Day promotes the consumption of fresh beer through proper inventory rotation annually on May 1.
Kentucky Oaks
Kentucky Oaks is a major horse race for three-year-old fillies held on the Friday before the Kentucky Derby.
Silver Star Service Banner Day
Silver Star Service Banner Day honors wounded and ill veterans each year on May 1.
National Black Barber Shop Appreciation Day
National Black Barber Shop Appreciation Day honors the cultural and community impact of Black-owned barber shops annually on May 1.
National Purebred Dog Day
National Purebred Dog Day is observed annually on May 1. This day recognizes the heritage, diversity, and predictability of the purebred dog, celebrating the specific roles these animals have played…
Frequent Flyer Day
Frequent Flyer Day is celebrated every May 1 to honor loyal air travelers and airline reward programs.
National Mantra Day
National Mantra Day is celebrated every May 1 to promote mindfulness and positivity through the power of repetitive sound.
Keep Kids Alive Drive 25 Day
Keep Kids Alive Drive 25 Day is an annual safety campaign held on May 1 to reduce neighborhood speeding.
Machynlleth Comedy Festival
This festival celebrates live comedy every year during the May Day bank holiday weekend.
Staffordshire Day in England
Staffordshire Day is a celebration of the English county's culture and heritage held every May 1.
Tracky Dack Day
Tracky Dack Day is observed any day in May to wear trackies, donate, and support sick children and their families.
May 2 28
International Harry Potter Day
Celebrate International Harry Potter Day on May 2, honoring the legacy of J.K. Rowling's beloved series.
World Naked Gardening Day
Naked Gardening Day is an annual celebration held on the first Saturday of May to promote body positivity and nature.
World Tuna Day
World Tuna Day emphasizes the importance of sustainable tuna fishing practices to protect marine ecosystems and support global food security.
World Labyrinth Day
Celebrate World Labyrinth Day on May 3 with a global walking meditation for peace, reflection, and unity.
International Pilates Day
Pilates Day is a global fitness celebration held on the first Saturday of May to promote core health.
Baby Day
Baby Day is celebrated every May 2 to honor infants and promote healthy early childhood development.
International Drone Day
International Drone Day is celebrated on the first Saturday of May to promote the positive uses of drone technology.
The Twelfth Day of Ridvan
The Twelfth Day of Ridvan marks the conclusion of the most important Baha'i festival on May 2.
International Scurvy Awareness Day
International Scurvy Awareness Day is held every May 2 to promote the importance of vitamin C and healthy nutrition.
World Ankylosing Spondylitis Day
World Ankylosing Spondylitis Day is a global health awareness event held on the first Saturday of May.
National Brothers and Sisters Day
Brother and Sister Day honors the lifelong bond between siblings on the first Saturday of May.
National Explosive Ordnance Disposal Day
National Explosive Ordnance Disposal Day honors military bomb disposal technicians on the first Saturday in May.
National Scrapbooking Day
National Scrapbooking discover the history, significance, and ways to participate in preserving memories through creative scrapbooking.
Free Comic Book Day
Free Comic Book Day is an annual event held on the first Saturday in May to promote comic book shops and reading.
Beer Pong Day
Beer Pong Day is a social holiday held on the first Saturday of May to celebrate the popular party game.
Herb Day
Herb Day is a celebration of the culinary and medicinal benefits of plants held on the first Saturday of May.
National Play Your Ukulele Day
National Play Your Ukulele Day is celebrated every May 2 to encourage musical expression and community.
Take a Baby to Lunch Day
Take a Baby to Lunch Day is observed every May 2 to encourage social bonding between adults and infants.
National Truffle Day
National Truffle Day is celebrated every May 2 to honor the rich chocolate confection known for its ganache center.
National Bombshells’ Day
National Bombshells’ Day celebrates women’s confidence and friendships on the first Saturday in May.
National Life Insurance Day
National Life Insurance Day is observed every May 2 to mark the anniversary of life insurance availability and promote financial security.
Join Hands Day
Join Hands Day is a national service event on the first Saturday in May that pairs youth and adults for community projects.
National Auctioneers Day
National Auctioneers Day honors the skill and economic impact of professional auctioneers on the first Saturday of May.
National Start Seeing Monarchs Day
National Start Seeing Monarchs Day is a conservation holiday observed on the first Saturday of May to protect butterfly habitats.
Kentucky Derby
The Kentucky Derby is a premier American horse race for three-year-old Thoroughbreds held annually on the first Saturday of May.
National Wildfire Community Preparedness Day
National Wildfire Community Preparedness Day is observed on the first Saturday in May to encourage local fire safety projects.
Childhood Stroke Awareness Day
Childhood Stroke Awareness Day is observed on the first Saturday of May to educate the public on pediatric stroke signs.
Polish National Flag Day
Polish National Flag Day is a national holiday in Poland observed every year on May 2.
May 3 27
International Bereaved Mother’s Day
International Bereaved Mother’s Day honors mothers who have experienced the loss of a child, providing a space for remembrance and support.
World Laughter Day
World Laughter Day celebrates the universal language of laughter and its power to bring people together.
Sun Day
Sun Day, celebrated on May 3, promotes awareness of solar energy and its role in sustainable living.
Wordsmith Day
Wordsmith Day, celebrated on May 3, honors the art of writing and those who practice it.
International Dawn Chorus Day
International Dawn Chorus Day is a global celebration of birdsong held every year on the first Sunday of May.
International Wild Koala Day
International Wild Koala Day is celebrated every May 3 to support the conservation of wild koalas and their natural habitats.
World Press Freedom Day
World Press Freedom Day is celebrated every May 3 to advocate for media independence and honor the work of journalists.
International Permaculture Day
International Permaculture Day is held on the first Sunday of May to advocate for sustainable and ethical land use.
International Family Equality Day
International Family Equality Day celebrates diverse family structures and is observed on the first Sunday of May.
Motorcycle Mass and Blessing of the Bikes Day
Motorcycle Mass and Blessing of the Bikes Day is observed on the first Sunday of May to promote rider safety and community.
National Paranormal Day
National Paranormal Day is celebrated every May 3 to explore ghosts, UFOs, and unexplained mysteries.
National Public Radio Day
National Public Radio Day is celebrated annually on May 3 to honor the debut of non-commercial public broadcasting.
Mayday for Mutts
Mayday for Mutts celebrates the unique qualities and health of mixed-breed dogs on the first Sunday of May.
National Two Different Colored Shoes Day
National Two Different Colored Shoes Day on May 3 celebrates human diversity and individuality through mismatched footwear.
National Raspberry Pop Over Day
National Raspberry Pop Over Day is a food holiday celebrating the light and airy fruit pastry every May 3.
National Garden Meditation Day
National Garden Meditation Day encourages peaceful reflection in outdoor spaces every May 3.
National Chocolate Custard Day
National Chocolate Custard Day is a food holiday celebrating the creamy chocolate dessert every May 3.
National Textile Day
National Textile Day is celebrated annually on May 3 to recognize the impact of fabrics on daily life.
National Montana Day
National Montana Day is observed annually on May 3 to celebrate the heritage, beauty, and history of the Treasure State.
Write a Review Day
Write a Review Day is an annual observance on May 3 that encourages consumers to share honest feedback about businesses.
National Lumpy Rug Day
National Lumpy Rug Day is observed annually on May 3 to address household safety and metaphorical issues hidden from view.
National Specially-Able Pets Day
National Specially-Able Pets Day is an annual holiday on May 3 that promotes the adoption of pets with physical challenges.
National Infertility Survival Day
National Infertility Survival Day is observed on the Sunday before Mother's Day to support those facing fertility struggles.
Puppy Mill Action Week
Puppy Mill Action Week is observed during the week leading up to Mother's Day to raise awareness about commercial breeding.
National SAN Architect Day
National SAN Architect Day is celebrated every May 3 to honor the experts who manage and secure critical storage area networks.
National Lemonade Day
National Lemonade Day on the first Sunday in May teaches kids entrepreneurship through lemonade stands. Learn history, importance, and how to celebrate.
Constitution Day in Poland
Constitution Day in Poland celebrates the first modern constitution in Europe and is observed every year on May 3.
May 4 27
Star Wars Day
Star Wars Day is a fan-driven celebration of the famous film franchise held every year on May 4.
International Firefighters Day
International Firefighters Day honors the service and sacrifice of firefighters every May 4.
Anti-Bullying Day
Anti-Bullying Day is a global event held annually on May 4 to promote kindness and stand against all forms of harassment.
International Respect for Chickens Day
International Respect for Chickens Day is observed annually on May 4. This day is dedicated to recognizing the intelligence and social complexity of chickens while advocating for their humane treatment.…
Petite and Proud Day
Petite and Proud Day is a holiday celebrating individuals 5'4" and shorter every May 4.
World Give Day
World Give Day is a global movement for generosity and philanthropy held every May 4.
45 Day
45 Day is an annual observance on May 4 that honors the technical professionals working in the live event industry.
Saint Florian Day
Saint Florian Day is an annual feast day on May 4 dedicated to the patron saint of firefighters and chimney sweeps.
Dave Brubeck Day
Star Wars Day is a fan-driven celebration of the famous film franchise held every year on May 4.
Kent State Shootings Remembrance
Kent State Shootings Remembrance honors the victims of the 1970 campus tragedy every year on May 4.
Bird Day in the USA
Bird Day is an annual American holiday observed on May 4 to promote bird conservation and education.
Melanoma Monday
Melanoma Monday promotes skin cancer awareness and early detection on the first Monday of May.
Rhode Island Independence Day
Rhode Island Independence Day celebrates the state's 1776 renunciation of British rule and is held annually on May 4.
National Orange Juice Day
National Orange Juice Day celebrates the popular breakfast beverage and its health benefits every May 4.
Relationship Renewal Day
Relationship Renewal Day is an annual event held on May 4 to help people strengthen and repair their personal connections.
National Candied Orange Peel Day
National Candied Orange Peel Day celebrates the sweet citrus treat every May 4.
K.I.N.D. Day
K.I.N.D. Day is observed every May 4 to raise awareness and provide diapers for families in financial need.
National Renewal Day
National Renewal Day is a holiday for fresh starts and personal growth celebrated annually on May 4.
National Kids Fitness Day
National Kids Fitness Day encourages children to stay active and healthy every May 4.
National Meeting Planners Appreciation Day
National Meeting Planners Appreciation Day honors event organizers on the Monday of the first full week in May.
National Weather Observers Day
National Weather Observers Day honors those who track meteorological data every year on May 4.
Early May Bank Holiday
The Early May Bank Holiday is a UK public holiday on the first Monday of May to celebrate spring and worker rights.
Firefighters' Memorial Day
Firefighters' Memorial Day is a global tribute held on May 4 to honor the bravery and sacrifice of all firefighters.
Greenery Day
Greenery Day is a Japanese holiday dedicated to nature appreciation and environmental awareness celebrated on May 4.
Great Lakes Awareness Day
Great Lakes Awareness Day is a regional event held on the Monday of the first full week in May to promote conservation.
National Open Farm Day
National Open Farm Day is a celebration of agriculture and food production held on the first Monday of May.
Declaration of Independence Day in Latvia
Declaration of Independence Day in Latvia is a national holiday held every May 4 to honor the return of state sovereignty.
May 5 25
Revenge of the Fifth
Revenge of the Fifth is a fan-made Star Wars holiday that celebrates the villains of the franchise every year on May 5.
World Hand Hygiene Day
World Hand Hygiene Day emphasizes the critical role of hand hygiene in preventing infections and promoting patient safety worldwide.
International Midwives Day
Celebrate International Midwives Day on May 5, honoring the vital role of midwives in maternal and newborn health worldwide.
African World Heritage Day
African World Heritage Day, observed on May 5, celebrates and promotes the preservation of Africa's rich cultural and natural heritage.
World Portuguese Language Day
Celebrate World Portuguese Language Day on May 5, honoring the global impact of the Portuguese language and its rich cultural heritage.
World Asthma Day
World Asthma Day raises awareness about asthma and promotes better care for those affected by this chronic respiratory condition.
Europe Day
Europe Day celebrates the founding of the Council of Europe on May 5 to promote human rights and democratic values.
Poem on Your Pillow Day
Poem on Your Pillow Day encourages the personal sharing of poetry at home every first Tuesday in May.
Childhood Depression Awareness Day
Childhood Depression Awareness Day is observed on the first Tuesday in May to support young people struggling with mental health.
National Teacher Day
National Teacher Day is held on the Tuesday of the first full week of May to honor the contributions of educators.
Nail Day
National Nail Day celebrates the artistry of manicures and the importance of hand health every year on May 5.
National Concert Day
National Concert Day celebrates the live music industry and kicks off the summer tour season on the first Tuesday in May.
National Hoagie Day
National Hoagie Day celebrates the official sandwich of Philadelphia every year on May 5.
Museum Lover's Day
Museum Lover's Day celebrates the importance of preserving history and art in museums every year on May 5.
National Totally Chipotle Day
National Totally Chipotle Day celebrates the smoky flavor of dried and smoked jalapeños every year on May 5.
National Silence the Shame Day
National Silence the Shame Day is a mental health awareness day observed annually on May 5.
National Astronaut Day
National Astronaut Day honors the history of space exploration and the bravery of astronauts every year on May 5.
Hug a Shed and Take a Selfie Day
Celebrate your garden shed on Hug a Shed and Take a Selfie Day every May 5 by sharing a fun photo of your workspace.
National Cartoonists Day
National Cartoonists Day celebrates the creators of comic strips and illustrations annually on May 5.
National Foster Care Day
National Foster Care Day raises awareness for children in the foster system every year on the first Tuesday in May.
Cinco de Mayo
Cinco de Mayo commemorates the Mexican victory over French forces at the Battle of Puebla and is celebrated annually on May 5.
National Day of Awareness for Missing and Murdered Indigenous Women and Girls
National Day of Awareness for Missing and Murdered Indigenous Women and Girls is observed each year on May 5.
Day of Remembrance Against Violence and Racism in Memory of the Victims of National Socialism in Austria
Austria honors the victims of National Socialism and the liberation of Mauthausen every year on May 5.
Sleep Apnea Awareness Day
Sleep Apnea Awareness Day highlights the risks of sleep-disordered breathing and is observed annually on May 5.
Liberation Day
Liberation Day in the Netherlands on May 5 marks the end of Nazi occupation in WWII. Learn about its history, importance, and how to celebrate.
May 6 17
International No Diet Day
International No Diet Day is an annual celebration of body acceptance and diversity observed on May 6.
Saint George’s Day in Eastern Christianity
Saint George’s Day in Eastern Christianity is a major religious and spring feast observed annually on May 6.
Project Aces Day
Project ACES Day is a global event on the first Wednesday of May where children exercise simultaneously to promote fitness.
National Nurses Day
National Nurses Day is celebrated on May 6 to honor the contributions of nursing professionals to healthcare and society.
National School Nurse Day
National School Nurse Day is celebrated on the Wednesday of National Nurses Week to honor the professionals who support student health in schools.
National Bike To School Day
Celebrate National Bike to School Day by encouraging students to embrace biking as a fun, healthy, and eco-friendly way to commute to school.
Great American Grump Out
The Great American Grump Out is a 24-hour challenge to avoid grumpiness and negativity held annually on the first Wednesday of May.
National Skilled Trades Day
National Skilled Trades Day is celebrated on the first Wednesday in May to honor the essential contributions of skilled laborers.
National Interpreter Appreciation Day
National Interpreter Appreciation Day is held on the first Wednesday of May to celebrate the linguists who facilitate communication across language barriers.
No Homework Day
No Homework Day is a holiday celebrated on May 6 that encourages students to take a break from school assignments.
National Beverage Day
National Beverage Day is celebrated every May 6 to appreciate the variety and social importance of all drinks.
National Crepe Suzette Day
National Crepe Suzette Day is a food holiday celebrating a famous French dessert with orange sauce every May 6.
Occupational Safety and Health Professional Day
Occupational Safety and Health Professional Day honors the experts who protect workers and prevent workplace accidents every May.
Joseph Brackett Day
Joseph Brackett Day honors the Shaker elder who composed the world-famous song "Simple Gifts."
National Tourist Appreciation Day
National Tourist Appreciation Day is a holiday celebrated on May 6 to honor the economic and cultural impact of travelers.
National Anxiety Disorders Screening Day
National Anxiety Disorders Screening Day is held on the first Thursday of May to promote early detection and treatment of anxiety conditions.
Dr. Mark A. Groh Cardiothoracic Surgeon Appreciation Day
Dr. Mark A. Groh Cardiothoracic Surgeon Appreciation Day is held every May 6 to honor heart and lung surgery specialists.
May 7 17
World Password Day
World Password Day is observed annually on the first Thursday of May, which falls on May 7 in 2026. This day serves as a global reminder of the importance of…
Beaufort Scale Day
Celebrate Beaufort Scale Day on May 7, honoring Sir Francis Beaufort's contribution to meteorology with his enduring wind force scale
International Day of Planetariums
Celebrate the International Day of Planetariums on May 7, highlighting their role in bringing astronomy to the public.
Thank You Thursday
Thank You Thursday is a weekly movement observed every Thursday to foster a consistent habit of expressing gratitude.
Jose Abad Santos Day
Jose Abad Santos Day honors the Philippine Chief Justice and war martyr every May 7.
Bladder Cancer Awareness Day
Bladder Cancer Awareness Day is observed annually on May 7 to promote early detection and support for those affected.
National Day of Prayer
The National Day of Prayer is an annual observance for Americans to turn to prayer on the first Thursday of May.
National Children's Mental Health Awareness Day
National Children's Mental Health Awareness Day is held on the Thursday of the first full week in May for youth support.
National Roast Leg of Lamb Day
National Roast Leg of Lamb Day is a culinary holiday celebrated annually on May 7.
National Tourism Day
National Tourism Day honors the impact of travel and tourism on the economy every May 7.
National Day of Reason
National Day of Reason celebrates logic and secularism on the first Thursday of May.
National Cosmopolitan Day
National Cosmopolitan Day is an annual celebration of the iconic pink vodka cocktail held every May 7.
Love's Baby Soft Day
Love's Baby Soft Day honors the legendary 1970s perfume and its cultural legacy every May 7.
National Barrier Awareness Day
National Barrier Awareness Day is observed on May 7 to address obstacles faced by people with disabilities.
National Homebrew Day
National Homebrew Day honors the craft and community of amateur beer making on May 7 and on the first Saturday of May.
National Packaging Design Day
National Packaging Design Day is observed on May 7 to recognize the art and craftsmanship of product packaging.
National Paste Up Day
National Paste Up Day is celebrated every May 7 to honor the manual page layout techniques used before digital publishing.
May 8 25
World Donkey Day
Celebrate World Donkey Day by honoring the invaluable contributions of donkeys to human society and advocating for their welfare and protection.
World Red Cross and Red Crescent Day
World Red Cross and Red Crescent Day is observed annually on May 8 to honor humanitarian work and founder Henry Dunant.
World Ovarian Cancer Day
World Ovarian Cancer Day raises awareness about ovarian cancer, promotes early detection, and supports those affected by the disease.
Fintastic Friday
Fintastic Friday is observed on the second Friday of May to raise awareness and protect sharks, skates, and rays.
Victory in Europe Day
Victory in Europe Day commemorates the end of World War II in Europe and is observed annually on May 8.
White Lotus Day
White Lotus Day is an annual observance on May 8 that honors the spiritual legacy of Helena Petrovna Blavatsky.
Time of Remembrance and Reconciliation for those who Lost their Lives during WWII
This observance honors all victims of the Second World War and promotes global reconciliation on May 8 and 9.
International Thalassaemia Day
International Thalassaemia Day is a health awareness event held every May 8 to support those with inherited blood disorders.
Free Trade Day
Free Trade Day is observed on May 8. This day highlights the importance of open markets and the exchange of goods and services across international borders without restrictive tariffs or…
National Military Spouse Appreciation Day
National Military Spouse Appreciation Day honors the support of military families on the Friday before Mother's Day.
No Socks Day
No Socks Day is a fun holiday on May 8 that encourages everyone to ditch their hosiery and let their toes breathe.
National Have a Coke Day
Fintastic Friday is observed on the second Friday of May to raise awareness and protect sharks, skates, and rays.
National Give Someone a Cupcake Day
National Give Someone a Cupcake Day is a sweet occasion for spreading kindness with small treats every May 8.
Truman Day
Truman Day is a Missouri state holiday honoring President Harry S. Truman on his birthday each May 8.
Child Care Provider Day
Child Care Provider Day honors childcare professionals on the Friday before Mother's Day each year.
National Provider Appreciation Day
National Provider Appreciation Day honors child care professionals on the Friday before Mother’s Day.
National Coconut Cream Pie Day
National Coconut Cream Pie Day is celebrated every May 8 to enjoy the classic tropical custard dessert.
Public Gardens Day
Public Gardens Day is held on the Friday before Mother's Day to celebrate the conservation and beauty of botanical spaces.
National Student Nurse Day
National Student Nurse Day is held annually on May 8 to recognize those training for the nursing profession.
Emancipation Day in Mississippi
Emancipation Day in Mississippi is celebrated on May 8 to mark the end of slavery in the state.
National Report Government Contractor Fraud Day
National Report Government Contractor Fraud Day is held on May 8 to promote whistleblower awareness and ethics.
Iris Day
Iris Day celebrates the beauty and symbolism of the iris flower every May 8.
Day of Remembrance and Reconciliation in Ukraine
Ukraine honors World War II victims and promotes peace on the Day of Remembrance and Reconciliation every May 8.
Women’s Historic Night in Norway
Women’s Historic Night in Norway honors the achievements of women and promotes their visibility in cities every May 8.
Amyloidosis Day
Amyloidosis Day is an annual observance on May 8 focused on raising awareness for this rare protein disorder.
May 9 30
World Migratory Bird Day
World Migratory Bird Day (2nd Saturday in May and October) celebrates migratory birds and raises awareness of their conservation across the globe.
World Belly Dance Day
Celebrate World Belly Dance Day by exploring the rich history and expressive beauty of belly dancing through performances, workshops, community events.
World Fair Trade Day
World Fair Trade Day promotes ethical commerce and fair wages on the second Saturday of May.
Europe Day in the European Union
Europe Day commemorates the 1950 Schuman Declaration and celebrates continental peace and unity every May 9.
World Migratory Bird Day
World Migratory Bird Day honors the seasonal journeys of birds on the second Saturday of May and October.
World Buckfast Day
World Buckfast Day celebrates the famous monastic tonic wine on the second Saturday of May.
Cornelia De Lange Syndrome Awareness Day
Cornelia De Lange Syndrome Awareness Day is observed on the second Saturday of May. In 2026, it falls on May 9. This global health observance aims to educate the public…
National Dog Mom’s Day
National Dog Mom’s Day honors women and their canine companions on the second Saturday of May.
National Train Day
National Train Day celebrates the history and impact of railroads on the Saturday closest to May 10.
Stay Up All Night Day
Stay Up All Night Day encourages people to stay awake until sunrise on the second Saturday of May.
Stamp Out Hunger Food Drive Day
Stamp Out Hunger Food Drive Day is a national food collection event held on the second Saturday in May.
Hurray for Buttons Day
Celebrate Hurray for Buttons Day on May 9 by appreciating the history, design, and utility of buttons through crafts, collections, and more.
Alphabet Magnet Day
Celebrate Alphabet Magnet Day by engaging in fun and educational activities with magnetic letters, fostering creativity and learning for all ages.
National Lost Sock Memorial Day
National Lost Sock Memorial Day is observed on May 9. This lighthearted holiday provides a specific time to acknowledge the common household mystery of disappearing footwear. It encourages people to…
National Animal Disaster Preparedness Day
National Animal Disaster Preparedness Day is observed on the second Saturday of May to encourage emergency planning for pets.
National Birth Mother’s Day
National Birth Mother’s Day honors biological mothers of adopted children on the second Saturday of May.
O. Henry Pun-off Day
O. Henry Pun-off Day celebrates witty wordplay and verbal humor on the second Saturday of May.
Archery Day
Archery Day recognizes the ancient sport of the bow and arrow on the second Saturday of May.
National Windmill Day
National Windmill Day honors historic mills and wind energy on the second Saturday of May.
National Sleepover Day
National Sleepover Day celebrates the tradition of slumber parties and friendship on May 9.
National Babysitter’s Day
National Babysitter’s Day honors caregivers on the Saturday before Mother's Day.
National Butterscotch Brownie Day
National Butterscotch Brownie Day celebrates the rich and chewy brown sugar dessert bar every May 9.
Tear the Tags Off The Mattress Day
Tear the Tags Off The Mattress Day is a fun celebration of consumer freedom held annually on May 9.
Brunch for Lunch Day
Brunch for Lunch Day encourages eating breakfast foods at lunchtime on the day before Mother's Day.
Martin Z. Mollusk Day
Martin Z. Mollusk Day features a hermit crab predicting the start of summer on the first Friday of May.
National Miniature Golf Day
National Miniature Golf Day celebrates the fun and accessible sport of putting on the second Saturday of May.
Jamestown Day
Jamestown Day commemorates the 1607 founding of the first permanent English colony on the second Saturday in May.
National Home Front Heroes Day
National Home Front Heroes Day is observed on May 9. This day honors the millions of civilians who work and sacrifice at home while military members serve abroad, acknowledging their…
Liberation Day on Guernsey
Liberation Day on Guernsey commemorates the island's freedom from World War II occupation every May 9.
Liberation Day in Jersey
Liberation Day in Jersey marks the island's freedom from Nazi occupation every May 9.
May 10 20
International Mother's Day
International Mother's Day honors mothers worldwide for their love, sacrifices, and contributions to families and society.
International Day of Argania
Celebrate International Day of Argania by learning about the argan tree's ecological and cultural importance and supporting sustainable practices.
World Lupus Day
World Lupus Day is an international health awareness event observed annually on May 10 to support those with lupus.
Mother Ocean Day
Mother Ocean Day is observed annually on May 10 to celebrate the ocean's beauty and encourage marine conservation.
Mothers at the Wall Day
Mothers at the Wall Day honors mothers who have lost children in military conflicts, providing a space for remembrance and reflection.
National Shrimp Day
National Shrimp Day is an annual food holiday on May 10 that celebrates the most popular and versatile seafood in America.
One Day Without Shoes
One Day Without Shoes is observed annually on May 10 to raise awareness for children living without footwear.
National Golf Day
National Golf Day is held annually on May 10 to honor the sport's history, health benefits, and economic contributions.
National Clean Your Room Day
National Clean Your Room Day is a yearly event on May 10 that encourages people to organize and refresh their bedrooms.
National Small Business Day
National Small Business Day celebrates the impact of entrepreneurs and local companies annually on May 10.
National Lipid Day
National Lipid Day is observed annually on May 10 to promote awareness of cholesterol levels and cardiovascular health.
Trust Your Intuition Day
Trust Your Intuition Day is held every May 10 to encourage people to listen to their inner voice and gut feelings.
Sex Differences in Health Awareness Day
Sex Differences in Health Awareness Day is held every May 10 to highlight biological impacts on health.
National Ship Via Rail Day
National Ship Via Rail Day is observed every May 10 to highlight the efficiency and benefits of shipping goods by train.
National Washington Day
National Washington Day is observed on May 10 to celebrate the history, culture, and natural beauty of Washington State.
National Veal Ban Action Day
National Veal Ban Action Day is observed on the second Sunday of May to advocate against cruel calf confinement practices.
Mother's Day Mexico
Mother's Day in Mexico is a major cultural celebration held every year on May 10 to honor mothers and family matriarchs.
National Children's Day in UK
National Children's Day in UK celebrates the importance of healthy childhoods on a Sunday in May.
Independence Day in Romania
Independence Day in Romania is a national holiday observed annually on May 10 to mark its 1877 declaration of sovereignty.
Micronesia Constitution Day
Micronesia Constitution Day is a national holiday held every May 10 to honor the adoption of the country's supreme law.
May 11 10
International Coaching Day
Celebrate International Coaching Day recognizing the profound impact of professional coaching on personal and organizational growth.
World Ego Awareness Day
World Ego Awareness Day encourages self-reflection and mindfulness to understand and manage the influence of ego on personal and societal levels.
National Eat What You Want Day
National Eat What You Want Day is an annual observance on May 11 that encourages a one-day break from all dietary restrictions.
National Twilight Zone Day
National Twilight Zone Day honors the classic science fiction television series every year on May 11.
Hostess CupCake Day
Hostess CupCake Day is an annual celebration of the iconic cream-filled chocolate snack held every May 11.
National Women's Check-up Day
National Women's Check-up Day is held on the second Monday in May to encourage annual well-woman exams and preventive care.
Minnesota Statehood Day
Minnesota Statehood Day celebrates the state's 1858 entry into the Union and is held every year on May 11.
Vietnam Human Rights Day
Vietnam Human Rights Day is observed on May 11 to promote civil liberties and fundamental freedoms for the Vietnamese people.
National Foam Rolling Day
National Foam Rolling Day encourages muscle recovery and self-myofascial release every year on May 11.
Somerset Day
Somerset Day is a celebration of heritage and community in the English county of Somerset observed annually on May 11.
May 12 14
International Nurses Day
International Nurses Day honors the dedication and contributions of nurses worldwide, commemorating the birth of Florence Nightingale.
International Day of Plant Health
International Day of Plant Health is observed globally on May 12 to raise awareness about protecting vegetation and food security.
International Awareness Day for Chronic Immunological and Neurological Diseases
International Awareness Day for Chronic Immunological and Neurological Diseases is held every May 12 to support patients.
International Chronic Fatigue Syndrome Awareness Day
International Chronic Fatigue Syndrome Awareness Day is observed every May 12 to advocate for research and patient support.
International Myalgic Encephalomyelitis Awareness Day
International Myalgic Encephalomyelitis Awareness Day is held every May 12 to advocate for people living with this chronic illness.
World Topiary Day
World Topiary Day is observed on May 12 to celebrate shaped shrubs, garden craft, and the living art of topiary.
National Mental Health Provider Appreciation Day
National Mental Health Provider Appreciation Day honors mental health professionals annually on May 12.
National Limerick Day
National Nutty Fudge Day is an annual celebration of creamy fudge mixed with crunchy nuts held every May 12.
National Nutty Fudge Day
National Nutty Fudge Day is an annual celebration of creamy fudge mixed with crunchy nuts held every May 12.
National Odometer Day
National Odometer Day recognizes the instrument used for measuring vehicle travel distance every year on May 12.
National Fibromyalgia Awareness Day
National Fibromyalgia Awareness Day promotes education and support for those with chronic pain every year on May 12.
National Hospital Day
National Hospital Day recognizes the importance of medical facilities and is observed annually on May 12.
National Tampon Day
National Tampon Day is observed every year on May 12 to promote menstrual health and advocate for hygiene equity.
National YA DIG Day
National YA DIG Day is observed annually on May 12. This day focuses on boosting self-esteem and encouraging individuals to recognize their own potential. The name serves as an acronym…
May 13 16
International Hummus Day
Celebrate International Hummus Day on May 13 by enjoying this beloved Middle Eastern dip and exploring its rich cultural heritage.
IEEE Global Engineering Day
Celebrate IEEE Global Engineering Day on May 13, honoring engineers' contributions and inspiring future innovations.
World Facilities Management Day
World Facilities Management Day honors built environment professionals on the Wednesday of the second full week in May.
Tulip Day
Tulip Day is an annual celebration of the vibrant spring flower held every May 13.
Top Gun Day
Top Gun Day is a fan-made celebration of the iconic 1986 aviation film held every year on May 13.
National Receptionists Day
National Receptionists Day recognizes front-line office staff annually on the second Wednesday in May.
National Apple Pie Day
Celebrate National Apple Pie Day on May 13 by baking or enjoying this classic dessert that embodies American tradition and comfort.
National Frog Jumping Day
National Frog Jumping Day celebrates the legacy of Mark Twain and amphibian agility every year on May 13.
National Night Shift Workers Day (National Third Shift Workers Day)
National Night Shift Workers Day honors the dedicated individuals on the third shift every second Wednesday in May.
National Leprechaun Day
National Leprechaun Day celebrates the mythical figures of Irish folklore and is observed annually on May 13.
Root Canal Appreciation Day
Root Canal Appreciation Day celebrates saving natural teeth and promoting dental health on the second Wednesday in May.
National Fruit Cocktail Day
National Fruit Cocktail Day celebrates the classic canned or fresh fruit blend annually on May 13.
Children of Fallen Patriots Day
Children of Fallen Patriots Day is observed on May 13 to honor children of military personnel who died in service.
Cough Drop Day
Cough Drop Day celebrates the history and health benefits of throat lozenges every year on May 13.
National Crouton Day
National Crouton Day honors the seasoned, toasted bread cubes used as a crunchy garnish every year on May 13.
Donate a Day's Wages To Charity Day
Donate a Day's Wages To Charity Day is a global event held on the second Wednesday in May to encourage individual giving.
May 14 15
Ascension Day
Ascension Day is a Christian holiday observed on the 40th day of Easter to honor Jesus Christ's ascent into heaven.
International Chihuahua Appreciation Day
Celebrate International Chihuahua Appreciation Day on May 14 by honoring the charm, loyalty, and big personality of the world’s smallest dog breed.
International Dylan Thomas Day
Celebrate International Dylan Thomas Day on May 14 by exploring the works of the iconic Welsh poet and engaging with literary events worldwide.
National Dance Like a Chicken Day
National Dance Like a Chicken Day is a fun holiday celebrated on May 14 to honor the iconic and silly Chicken Dance.
National Buttermilk Biscuit Day
National Buttermilk Biscuit Day honors the flaky Southern breakfast staple every May 14.
Online Romance Day
Online Romance Day celebrates digital dating and virtual connections every May 14.
Bond With Your Dog Day
Bond With Your Dog Day honors the emotional connection between humans and their canine friends every May 14.
Do Dah Day
Do Dah Day is an annual pet-themed charity festival and parade celebrated on May 14.
The Stars and Stripes Forever Day
The Stars and Stripes Forever Day celebrates the official national march of the United States every May 14.
National Decency Day
National Decency Day is observed annually on May 14 to promote civility and respect in daily life.
National Travel Insurance Claims Day
National Travel Insurance Claims Day highlights the importance of travel protection every May 14.
National Underground America Day
National Underground America Day is observed on May 14 to celebrate the benefits of earth-sheltered homes and architecture.
Jerusalem Day
Jerusalem Day celebrates the reunification of the city on the 28th of Iyar in the Hebrew calendar.
Paraguay Independence Day
The Stars and Stripes Forever Day celebrates the official national march of the United States every May 14.
National Unification Day in Liberia
National Unification Day in Liberia is a national holiday observed annually on May 14.
May 15 25
International Family Day
Celebrate International Family Daу by honoring the vital role families play in society and promoting initiatives that support family well-being.
International Kangaroo Care Awareness Day
Celebrate International Kangaroo Care Awareness Day by embracing the nurturing practice of skin-to-skin contact and supporting neonatal health.
Vascular Birthmarks Awareness Day
Vascular Birthmarks Awareness Day on May 15 promotes understanding, support, and education for individuals affected by vascular birthmarks.
Hyperemesis Gravidarum Awareness Day
Hyperemesis Gravidarum Awareness Day is observed on May 15 to educate the public about this severe pregnancy condition.
International Virtual Assistants Day
International Virtual Assistants Day honors remote professionals and is observed on the third Friday of May.
International MPS Awareness Day
International MPS Awareness Day is observed annually on May 15 to raise awareness for rare genetic lysosomal storage disorders.
International Conscientious Objectors Day
International Conscientious Objectors Day honors those who refuse military service for moral reasons every May 15.
International Huntington’s Disease Awareness Day
International Huntington’s Disease Awareness Day is held on May 15 to raise awareness for this rare genetic brain disorder.
Tuberous Sclerosis Complex Global Awareness Day
Tuberous Sclerosis Complex Global Awareness Day is an annual health observance on May 15 dedicated to raising awareness for the genetic disorder TSC.
National Pizza Party Day
National Pizza Party Day is observed on the third Friday in May to celebrate sharing pizza with friends and family.
Peace Officers Memorial Day
Peace Officers Memorial Day is a national observance held every May 15 to honor law enforcement officers lost in the line of duty.
National Chocolate Chip Day
National Chocolate Chip Day is celebrated annually on May 15 to honor the versatile baking morsel.
Bring Flowers To Someone Day
Bring Flowers To Someone Day is observed on May 15 to encourage the simple, kind gesture of gifting floral bouquets.
National Nylon Stocking Day
National Nylon Stocking Day celebrates the 1940 debut of synthetic hosiery and is observed annually on May 15.
National Bike to Work Day
National Bike to Work Day encourages cycling as a commute option on the third Friday of May.
Straw Hat Day
Straw Hat Day marks the seasonal transition to summer headwear and is celebrated annually on May 15.
National Senior Fraud Awareness Day
National Senior Fraud Awareness Day is observed on May 15 to help protect older adults from financial exploitation.
Relive Your Past By Listening to the First Music You Ever Bought No Matter What It Was No Excuses Day
Relive Your Past By Listening to the First Music You Ever Bought No Matter What It Was No Excuses Day falls on May 15.
National Safety Dose Day
National Safety Dose Day promotes accurate medication dosing and is observed on May 15.
National Defense Transportation Day
National Defense Transportation Day is observed on the third Friday of May to honor transportation, logistics, and defense readiness.
NASCAR Day
NASCAR Day is celebrated on the third Friday in May to honor stock car racing, fans, teams, and charitable giving.
National Endangered Species Day
National Endangered Species Day is observed on the third Friday of May to raise awareness of at-risk wildlife and habitats.
Spinal Cord Injury Awareness Day
Spinal Cord Injury Awareness Day is observed on the third Friday of May to raise support and awareness for people with SCI.
Shades Day
Shades Day is a charitable event observed on the Friday closest to May 15 to help families in need.
Hats for Headway Day
Hats for Headway Day is observed on the third Friday of May to raise awareness and funds for brain injury support.
May 16 27
International Day of Light
Celebrate the International Day of Light on May 16, recognizing the essential role of light in science, culture, and sustainable development.
World Whisky Day
World Whisky Day is observed on the third Saturday of May to enjoy whisky and tasting traditions.
Drawing Day
Drawing Day is observed on May 16 to celebrate sketching, doodling, and creative expression.
International Boys’ Day
International Boys’ Day is observed on May 16 to support boys’ well-being and mentoring.
International Day of Living Together in Peace
International Day of Living Together in Peace is observed on May 16 to promote peace and inclusion.
World Fiddle Day
World Fiddle Day is observed on the third Saturday of May to honor fiddle music and traditions.
World Orienteering Day
World Orienteering Day begins on the third Saturday of May to promote map-based outdoor navigation.
Whit Sunday (Pentecost Sunday)
Whit Sunday is observed 50 days after Easter to remember Pentecost and the coming of the Holy Spirit.
Culture Freedom Day
Culture Freedom Day is observed on the third Saturday of May to support free culture, open licensing, and shared creativity.
National Armed Forces Day
National Armed Forces Day is a U.S. observance held on the third Saturday in May.
National Barbecue Day
Happy National Barbecue Day! It's time to celebrate America's delicious grilled cuisine.
National Mimosa Day
Celebrate National Mimosa Day on May 16 by enjoying this classic brunch cocktail and exploring creative variations with friends and family.
Plant a Lemon Tree Day
Celebrate Plant a Lemon Tree Day by planting a lemon tree to promote sustainability, health, and community engagement.
National Love a Tree Day
National Love a Tree Day is observed on May 16 to appreciate trees, tree care, shade, wildlife habitat, and green spaces.
National Piercing Day
National Piercing Day is observed on May 16 to recognize piercings, body jewelry, and safe self-expression.
National Wear Purple for Peace Day
National Wear Purple for Peace Day is observed on May 16 to wear purple for peace and goodwill.
National Do Something Good for Your Neighbor Day
National Do Something Good for Your Neighbor Day is observed on May 16 to honor kindness, helpful deeds, and neighborly care.
National Honor Our LGBT Elders Day
National Honor Our LGBT Elders Day is observed on May 16 to honor LGBT elders, their stories, and community contributions.
National Learn to Swim Day
National Learn to Swim Day is observed on the third Saturday in May for swim skills and water safety.
Nickel Day
Nickel Day is observed on May 16 to explore nickel as a metal, coin, and useful material in everyday objects.
National Sea Monkey Day
National Sea Monkey Day is observed on May 16 to enjoy Sea-Monkeys, brine shrimp, nostalgia, and simple science.
National Biographer's Day
National Biographer's Day is observed on May 16 to honor biographers, biography, and the craft of writing real lives.
National Coquilles Saint Jacques Day
National Coquilles Saint Jacques Day is observed on May 16 to enjoy a classic French scallop dish with rich sauce.
Preakness Stakes
Preakness Stakes is held on the third Saturday of May as a major Triple Crown horse race.
National River Cleanup Day
National River Cleanup Day is observed on the third Saturday in May to clean rivers, creeks, watersheds, and local habitats.
Middlesex Day in England
Middlesex Day in England is observed on May 16 to honor historic county identity and the Battle of Albuera connection.
Waiters Day
Waiters Day is observed on May 16 to recognize front-of-house hospitality workers.
May 17 24
World Hypertension Day
World Hypertension Day raises awareness about high blood pressure, promoting prevention and control to reduce the risk of cardiovascular diseases.
World Baking Day
Celebrate World Baking Day by embracing the joy of baking and sharing your creations with loved ones.
International Child Helpline Day
International Child Helpline Day raises awareness about the vital role of child helplines in providing support and protection to children worldwide.
International Day Against Homophobia Transphobia and Biphobia
IDAHOBIT is observed on May 17 to raise awareness of anti-LGBTQIA+ discrimination.
International AIDS Candlelight Memorial
International AIDS Candlelight Memorial is observed on the third Sunday of May to remember AIDS losses and support HIV awareness.
World Information Society Day
World Information Society Day is observed on May 17 to focus on digital access, communication, and the information society.
Neurofibromatosis Awareness Day
Neurofibromatosis Awareness Day is observed on May 17 to raise awareness of NF, patient support, and research.
Pinot Grigio Day
Pinot Grigio Day is observed on May 17 to appreciate the crisp white wine, food pairings, and responsible tasting.
National Walnut Day
Celebrate National Walnut Day by exploring the health benefits and culinary versatility of walnuts through delicious recipes and community events.
Stepmother's Day
Stepmother's Day is observed on the Sunday after Mother’s Day to honor stepmothers and blended family bonds.
National Cherry Cobbler Day
National Cherry Cobbler Day is observed on May 17 to enjoy a classic cherry dessert.
National Idaho Day
National Idaho Day is observed on May 17 to recognize Idaho history and state pride.
Rural Life Sunday
Rural Life Sunday is commonly observed on the third Sunday of May to honor rural communities, farming, and church ministry.
National Pack Rat Day
National Pack Rat Day is observed on May 17 to sort clutter and rethink saved belongings.
National Graduation Tassel Day
National Graduation Tassel Day is observed on May 17 to honor graduates and academic milestones.
Ride a Unicycle Day
Ride a Unicycle Day is observed on the Sunday of the third full week of May to enjoy one-wheel riding, balance, and practice.
Emergency Medical Services Day
Emergency Medical Services Day is observed on the Sunday of the third full week of May to honor EMS professionals.
Take Your Parents To The Playground Day
Take Your Parents to the Playground Day is observed on the third Sunday of May for outdoor family play and park time.
National Pinkfix Day
National Pinkfix Day is observed on May 17 for women’s financial awareness and confidence.
Constitution Day in Norway
Constitution Day in Norway is observed on May 17 to honor the 1814 Constitution.
Children’s Day in Norway
Children’s Day in Norway is observed on May 17 with children’s parades and national celebration.
Liberation Day in DR Congo
Liberation Day in DR Congo is observed on May 17 to mark the 1997 political transition.
National Mushroom Hunting Day
National Mushroom Hunting Day is observed on May 17 to learn about mushroom foraging and safe identification.
Constitution Day in Nauru
Constitution Day in Nauru is observed on May 17 to honor the nation’s Constitution.
May 18 15
International Museum Day
International Museum Day highlights the importance of museums in cultural exchange, education, and community development worldwide.
National Speech Pathologist Day
National Speech Pathologist Day is observed on May 18 to honor SLPs and their work in communication and swallowing support.
National No Dirty Dishes Day
National No Dirty Dishes Day is observed on May 18 to enjoy meals with less cleanup and a cleaner kitchen sink.
I Love Reese's Day
I Love Reese's Day is observed on May 18 to enjoy Reese’s candy, peanut butter cups, and chocolate-peanut butter treats.
National Visit Your Relatives Day
National Visit Your Relatives Day is observed on May 18 to reconnect with family members and strengthen personal ties.
Mother Whistler Day
Mother Whistler Day is observed on May 18 to enjoy whistling, playful sound, and its odd link to Whistler’s Mother.
National Cheese Soufflé Day
National Cheese Soufflé Day is observed on May 18 to enjoy a savory French-style baked egg and cheese dish.
National HIV Vaccine Awareness Day
National HIV Vaccine Awareness Day is observed on May 18 to recognize HIV vaccine research, volunteers, and prevention education.
Send an Electronic Greeting Card Day
Send an Electronic Greeting Card Day is observed on May 18 to share digital cards, kind notes, and personal messages.
Supply Chain Professionals Day
Supply Chain Professionals Day is celebrated on the third Monday in May to honor logistics and supply chain workers.
Victoria Day in Canada
Victoria Day in Canada is observed on the Monday before May 25 to honor Queen Victoria and the Sovereign’s birthday.
Haitian Flag Day
Haitian Flag Day is observed on May 18 to honor Haiti’s flag, independence, unity, and national identity.
National Patriots’ Day in Quebec
National Patriots’ Day in Quebec is observed on the Monday before May 25 to commemorate the Patriotes and democratic struggles.
National Marshmallow Day in Australia
National Marshmallow Day in Australia is observed on May 18 to enjoy marshmallows, desserts, hot drinks, and sweet treats.
State Flag of Turkmenistan Day
State Flag of Turkmenistan Day is observed on May 18 to honor Turkmenistan’s flag, Constitution, and national identity.
May 19 17
Dinosaur Day
Celebrate Dinosaur Day on the third Tuesday of May by exploring the prehistoric world of dinosaurs through fun, educational activities for all ages.
World Family Doctor Day
World Family Doctor Day honors the essential role of family physicians in providing comprehensive and continuous care to communities worldwide.
World IBD Day
World IBD Day is observed on May 19 to raise awareness of Crohn’s disease, ulcerative colitis, and IBD care.
Agender Pride Day
Agender Pride Day is observed on May 19 to recognize agender identity, visibility, and respect for pronouns.
World Crohn's and Colitis Day
World Crohn's and Colitis Day is observed on May 19 to raise awareness of Crohn’s disease, colitis, and IBD care.
Plant Something Day
Celebrate Plant Something Day on May 19 by engaging in planting activities that promote environmental sustainability and personal well-being.
Malcolm X Day
Malcolm X Day is observed on May 19 to honor Malcolm X’s life, civil rights work, and human rights legacy.
National Devil's Food Cake Day
National Devil's Food Cake Day is observed on May 19 to enjoy a rich, dark chocolate cake with a moist crumb.
Frog Jumping Jubilee Day
Frog Jumping Jubilee Day is observed on May 19 to enjoy frog-jumping contests, Mark Twain humor, and Calaveras County tradition.
National Barber Mental Health Awareness Day
National Barber Mental Health Awareness Day is observed on May 19 to recognize barbers’ mental well-being and emotional labor.
National May Ray Day
National May Ray Day is observed on May 19 to enjoy spring sunshine, outdoor time, and warm-weather activities.
Hepatitis Testing Day
Hepatitis Testing Day is observed on May 19 to promote viral hepatitis testing, early diagnosis, and access to care.
National Asian and Pacific Islander HIV/AIDS Awareness Day
National Asian and Pacific Islander HIV/AIDS Awareness Day is observed on May 19 to raise HIV awareness and reduce stigma.
Your Elected Officials Day
Celebrate Your Elected Officials Day is observed on May 19 to recognize elected leaders and civic public service.
National Mechanical Dry Eye Day
National Mechanical Dry Eye Day is observed on May 19 to raise awareness of mechanical dry eye symptoms and diagnosis.
National Stop Nausea Day
National Stop Nausea Day is observed on the third Tuesday of May to raise awareness of nausea and practical support.
Boys and Girls Club Day
Boys and Girls Club Day is observed on May 19 to recognize youth clubs, mentors, and safe spaces for kids and teens.
May 20 27
World Bee Day
World Bee Day raises awareness about the vital role of bees and pollinators in ecosystems and agriculture, promoting their protection and conservation.
Flower Day
Flower Day is observed on May 20 to enjoy flowers, gardening, bouquets, and the beauty of blooming plants.
World Metrology Day
World Metrology Day commemorates the 1875 Metre Convention, highlighting the importance of measurement science in global development and daily life.
Clinical Trials Day
Clinical Trials Day is observed on May 20 to recognize clinical research, study volunteers, and the people who advance medicine.
Eliza Doolittle Day
Celebrate Eliza Doolittle Day honoring personal transformation and the enduring legacy of Pygmalion and My Fair Lady.
International Red Sneakers Day
International Red Sneakers Day on May 20 raises global awareness about food allergies, promoting education and support for affected individuals.
World Product Day
World Product Day is marked on May 20 in 2026 to recognize product people, product craft, and shared professional learning.
Weights and Measures Day
Weights and Measures Day is observed on May 20 to recognize accurate measurement, fair trade, and metrology.
World Autoimmune Arthritis Day
World Autoimmune Arthritis Day is observed on May 20 to raise awareness of autoimmune and autoinflammatory arthritis diseases.
National Rescue Dog Day
National Rescue Dog Day is observed on May 20 to raise awareness of shelter dogs, adoption, fostering, and rescue work.
National Be a Millionaire Day
National Be a Millionaire Day is observed on May 20 to focus on money goals, saving, investing, and financial planning.
Emancipation Day in Florida
Emancipation Day in Florida is observed on May 20 to remember freedom’s announcement in Florida and Black history.
National Streaming Day
National Streaming Day is observed on May 20 to recognize streaming media, online entertainment, and changing viewing habits.
National Band Director’s Day
National Band Director’s Day is observed on May 20 to honor band directors, music teachers, and student ensemble leaders.
National Quiche Lorraine Day
National Quiche Lorraine Day is observed on May 20 to enjoy the savory French tart made with custard, bacon, and pastry.
National High Heels Day
National High Heels Day is observed on May 20 to recognize high heels, fashion style, and confident self-expression.
Turn Beauty Inside Out Day
Turn Beauty Inside Out Day is observed on the third Wednesday in May to focus on inner beauty, body image, and media awareness.
National Psychometrists Day
National Psychometrists Day is observed on May 20 to recognize psychometrists and their role in psychological testing.
National Pick Strawberries Day
National Pick Strawberries Day is observed on May 20 to enjoy fresh strawberries, seasonal picking, and local farms.
National Women In Aerospace Day
National Women In Aerospace Day is observed on May 20 to honor women in aviation, spaceflight, engineering, and aerospace careers.
National Employee Health and Fitness Day
National Employee Health and Fitness Day is observed on the third Wednesday of May to promote workplace wellness and movement.
National Juice Slush Day
National Juice Slush Day is observed on the third Wednesday in May to enjoy frozen juice slushes and fruit-forward icy treats.
Emergency Medical Services for Children Day (EMSC)
Emergency Medical Services for Children Day is observed on the third Wednesday of May to support pediatric emergency care.
Josephine Baker Day
Josephine Baker Day is observed on May 20 to honor her artistry, civil rights work, and Resistance service.
Cameroon Republic Day
Cameroon Republic Day is observed on May 20 to mark national unity and the 1972 move to a unitary state.
East Timor Independence Day
East Timor Independence Day is observed on May 20 to mark Timor-Leste’s restored independence and national sovereignty.
National Numeracy Day in UK
National Numeracy Day is observed on the third Wednesday of May in the UK to build everyday maths and number confidence.
May 21 22
International Tea Day
International Tea Day celebrates the cultural, economic, and health significance of tea, promoting sustainable production and fair trade practices.
End of the World
End of the World is observed on May 21 as a lighthearted look at failed apocalypse predictions and clear thinking.
World Meditation Day
World Meditation Day, celebrated on May 21, promotes the practice of meditation and its benefits for mental, emotional, and physical well-being.
Orthodox Ascension Day
Orthodox Ascension Day is observed 40 days after Orthodox Easter to honor Christ’s ascension into heaven.
World Day for Cultural Diversity for Dialogue and Development
World Day for Cultural Diversity for Dialogue and Development is observed on May 21 to honor culture, dialogue, and inclusion.
Global Accessibility Awareness Day
Global Accessibility Awareness Day is observed on the third Thursday of May to promote digital access and inclusion.
European Maritime Day
European Maritime Day is held annually to focus on maritime affairs, coastal sectors, and the sustainable blue economy.
National Talk Like Yoda Day
National Talk Like Yoda Day is observed on May 21 to enjoy Yoda-style speech, Star Wars quotes, and fan humor.
National Waitstaff Day
National Waitstaff Day is observed on May 21 to recognize servers, waitstaff, and respectful restaurant service.
Rapture Party Day
Rapture Party Day is observed on May 21 as an informal day tied to the failed 2011 Rapture prediction.
National Strawberries and Cream Day
National Strawberries and Cream Day is observed on May 21 to enjoy fresh strawberries, cream, and simple seasonal desserts.
Brown Bag It Thursday
Brown Bag It Thursday is observed on the third Thursday in May to focus on packed lunches, saving money, and simple meal planning.
Eat More Fruits and Vegetables Day
Eat More Fruits and Vegetables Day is observed on May 21 to encourage colorful produce and healthier daily meals.
I Need a Patch For That Day
I Need a Patch for That Day is observed on May 21 to enjoy practical fixes, wordplay, and patches of every kind.
National Notebook Day
National Notebook Day is observed on the third Thursday of May to enjoy notebooks, journaling, planning, and handwritten ideas.
National American Red Cross Founder’s Day
National American Red Cross Founder’s Day is observed on May 21 to honor Clara Barton and American Red Cross service.
Chardonnay Day
Chardonnay Day is observed on the Thursday before Memorial Day to enjoy Chardonnay, wine tasting, and food pairings.
National Memo Day
National Memo Day is observed on May 21 to focus on memos, workplace communication, and clearer written messages.
National Aperitif Day
National Aperitif Day is observed on the third Thursday of May to enjoy pre-dinner drinks, small bites, and relaxed meals.
Sister Maria Hummel Day
Sister Maria Hummel Day is observed on May 21 to honor the artist and nun behind the famous Hummel figurines.
Vyshyvanka Day in Ukraine
Vyshyvanka Day in Ukraine is observed on the third Thursday of May to honor Ukrainian embroidered shirts and cultural identity.
Independence Day in Montenegro
Independence Day in Montenegro is observed on May 21 to mark the 2006 referendum and modern national independence.
May 22 26
Sherlock Holmes Day
Sherlock Holmes Day is observed on May 22 to honor the famous detective, Arthur Conan Doyle, and classic mystery fiction.
World Goth Day
World Goth Day, celebrated on May 22, honors the goth subculture's music, fashion, and art, promoting self-expression and cultural diversity.
World Preeclampsia Day
World Preeclampsia Day raises global awareness about preeclampsia, emphasizing early detection, prevention, and management to improve maternal and neonatal health outcomes.
Bitcoin Pizza Day
Bitcoin Pizza Day commemorates the first real-world Bitcoin transaction, celebrating the cryptocurrency's journey from a digital experiment to a global phenomenon.
International Day for Biological Diversity
International Day for Biological Diversity is observed on May 22 to raise awareness of biodiversity, ecosystems, and life on Earth.
World Paloma Day
World Paloma Day is observed on May 22 to enjoy the Paloma cocktail and its tequila, grapefruit, and lime flavors.
International Coco Mom Day
International Coco Mom Day is observed on May 22 to honor Black and Brown mothers and support maternal health equity.
National Maritime Day
National Maritime Day is observed on May 22 to honor the U.S. maritime industry, merchant mariners, and service at sea.
Carb Day
Carb Day is observed on the Friday before the Indianapolis 500 with final practice, pit crews, and race-weekend entertainment.
National Vanilla Pudding Day
National Vanilla Pudding Day is observed on May 22 to enjoy creamy vanilla pudding, from homemade bowls to easy desserts.
National Solitaire Day
National Solitaire Day is observed on May 22 to enjoy solitaire, classic card play, and Microsoft Solitaire history.
Buy A Musical Instrument Day
Buy a Musical Instrument Day is observed on May 22 to encourage new instruments, music practice, and creative playing.
National Road Trip Day
National Road Trip Day is observed on the Friday before Memorial Day to mark summer road trips and scenic travel.
National Boss Babes Day
National Boss Babes Day is observed on May 22 to recognize women’s ambition, leadership, mentorship, and professional drive.
National Title Track Day
National Title Track Day is observed on the fourth Friday of May to enjoy songs that share an album or film title.
Harvey Milk Day
Harvey Milk Day is observed on May 22 to honor Harvey Milk, LGBTQ+ civil rights, visibility, and public service.
National Death Busters Day
National Death Busters Day is observed on the Friday before Memorial Day to promote safer driving before holiday travel.
National Don’t Fry Day
National Don’t Fry Day is observed on the Friday before Memorial Day to promote sun safety and skin protection.
National Cooler Day
National Cooler Day is observed on the Friday before Memorial Day to recognize coolers, cold drinks, and summer outdoor plans.
National Craft Distillery Day
National Craft Distillery Day is observed on May 22 to recognize small-batch distilleries and handcrafted spirits.
National Wig Out Day
National Wig Out Day is observed 10 days before the first Monday in June for wigs, humor, and playful self-expression.
Bermuda Day
Bermuda Day is observed on the fourth Friday of May to celebrate Bermudian culture, heritage, summer, and island traditions.
Unity Day in Yemen
Unity Day in Yemen is observed on May 22 to mark the 1990 unification of North Yemen and South Yemen.
Canadian Immigrants Day
Canadian Immigrants Day is observed on May 22 to recognize Canadian-born immigrants and cross-border migration stories.
Republic Day in Sri Lanka
Republic Day in Sri Lanka is observed on May 22 to mark the 1972 constitution and the country’s republican status.
Walk Safely to School Day in Australia
Walk Safely to School Day in Australia is observed in May to promote safe walking, active travel, and healthier school trips.
May 23 14
World Turtle Day
World Turtle Day raises awareness about turtles and tortoises, promoting their conservation and the protection of their habitats.
International Day to End Obstetric Fistula
International Day to End Obstetric Fistula raises awareness about obstetric fistula and promotes actions to prevent and treat this preventable childbirth injury.
World Wrestling Day
World Wrestling Day is observed on May 23 to recognize amateur wrestling, Greco-Roman history, and disciplined competition.
International Heritage Breeds Day
International Heritage Breeds Day is observed on the Saturday of the third full week in May for rare breed conservation.
World Fish Migration Day
World Fish Migration Day is observed every two years to raise awareness of migratory fish and free-flowing rivers.
National Medical Coder Day
National Medical Coder Day is observed on May 23 to recognize medical coders and their role in accurate healthcare records.
National Drinking with Chickens Day
National Drinking with Chickens Day is observed on May 23 to enjoy garden drinks, fresh ingredients, and backyard chicken charm.
National Italian Beef Day
National Italian Beef Day is observed on the fourth Saturday in May to honor Chicago’s original Italian beef sandwich.
National Lucky Penny Day
National Lucky Penny Day is observed on May 23 to enjoy lucky pennies, small surprises, and a familiar good-luck tradition.
National Taffy Day
National Taffy Day is observed on May 23 to enjoy chewy taffy, boardwalk candy traditions, and classic sweet flavors.
Amateur Radio Military Appreciation Day
Amateur Radio Military Appreciation Day honors service members through live ham radio messages before Memorial Day.
Julia Pierpont Day
Julia Pierpont Day is observed on the Saturday before Memorial Day to honor grave-decorating traditions and Civil War remembrance.
National Christian T-Shirt Day
National Christian T-Shirt Day is observed the day before Pentecost to share Christian faith through wearable messages.
Students Day in Mexico
Students Day in Mexico is observed on May 23 to recognize students, education, and the 1929 university autonomy movement.
May 24 17
European Day of Parks
European Day of Parks is observed on May 24 to recognize protected areas, conservation, and Europe’s park heritage.
World Schizophrenia Awareness Day
World Schizophrenia Awareness Day global awareness about schizophrenia, aiming to dispel myths and promote understanding and support for those affected.
International Women's Day for Peace and Disarmament
nternational Women's Day for Peace and Disarmament honors women's contributions to peacebuilding and disarmament efforts worldwide.
Empire Day
Empire Day is historically associated with May 24 and the former British Empire, civic loyalty, and Commonwealth history.
Pansexual Visibility Day
Pansexual Visibility Day is observed on May 24 to recognize pansexual people, visibility, and LGBTQ+ inclusion.
Declaration of the Bab in Shiraz Shavuot
Declaration of the Báb in Shiraz is observed on 8 ‘Aẓamat to honor the Báb’s 1844 declaration in Shiraz.
Tiara Day
Tiara Day is observed on May 24 to celebrate women’s confidence, leadership, strength, and self-worth.
National Brother's Day
National Brother's Day is observed on May 24 to honor brothers, brother figures, and close sibling bonds.
Indianapolis 500
Indianapolis 500 is held on the Sunday of Memorial Day weekend for a historic 500-mile motorsports race.
National Asparagus Day
National Asparagus Day is observed on May 24 to enjoy asparagus, spring cooking, and fresh seasonal produce.
National Escargot Day
National Escargot Day is observed on May 24 to enjoy the French delicacy of snails prepared with garlic, butter, and herbs.
Aviation Maintenance Technician Day
Aviation Maintenance Technician Day is observed on May 24 to honor aircraft maintenance professionals and flight safety.
National Scavenger Hunt Day
National Scavenger Hunt Day is observed on May 24 to enjoy clue solving, teamwork, and playful searches.
Brooklyn Bridge birthday
Brooklyn Bridge Birthday is celebrated on May 24 to mark the bridge’s opening, engineering history, and New York legacy.
Denny's Endless Breakfast Day
Denny's Endless Breakfast Day is observed on May 24 to enjoy pancakes, eggs, hash browns, and diner-style breakfast.
National Caterers Appreciation Day
National Caterers Appreciation Day is observed on May 24 to thank caterers for food, service, planning, and event support.
Independence Day in Eritrea
Independence Day in Eritrea is observed on May 24 to mark liberation, sovereignty, and the country’s modern national history.
May 25 23
National Wine Day
National Wine Day is observed on May 25 to enjoy wine culture, grape varieties, food pairings, and responsible tasting.
Towel Day
On May 25th every year, fans from all around the globe celebrate Towel Day, an annual event that pays tribute to the late author Douglas Adams.
Glorious Twenty-Fifth of May
Glorious Twenty-Fifth of May is observed on May 25 to honor Terry Pratchett, Discworld, lilacs, and literary remembrance.
World Football Day
World Football Day, observed on May 25, celebrates the sport's global influence and its role in promoting unity, peace, and development worldwide.
International Plastic Free Day
International Plastic Free Day raises awareness about the environmental impact of single-use plastics and promotes sustainable alternatives to reduce plastic pollution.
World Thyroid Day
World Thyroid Day raises awareness about thyroid health, emphasizing the importance of early detection and treatment of thyroid disorders.
International Skin Pigmentation Day
International Skin Pigmentation Day raises awareness about skin pigmentation conditions and promotes acceptance of all skin tones.
Geek Pride Day
Geek Pride Day is observed on May 25 to celebrate geek culture, fandom, technology, games, and niche passions.
African Liberation Day
African Liberation Day is observed on May 25 to honor African independence, Pan-African unity, and liberation struggles.
Whit Monday (Pentecost Monday)
Whit Monday is observed the day after Pentecost Sunday to continue Christian reflection on the Holy Spirit and the Easter season.
Memorial Day (Decoration Day)
Memorial Day is observed on the last Monday of May to honor U.S. service members who died in military service.
National Missing Children’s Day
National Missing Children’s Day is observed on May 25 to raise awareness of missing children, safety, and family support.
National Sing Out Day
National Sing Out Day is observed on May 25 to enjoy singing, music, confidence, and shared vocal expression.
National Tap Dance Day
National Tap Dance Day is observed on May 25 to honor tap dance, rhythm, and its place in American performance history.
National VTuber Day
National VTuber Day is observed on May 25 to appreciate VTubers, digital avatars, livestreams, and fan communities.
National Brown-Bag It Day
National Brown-Bag It Day is observed on May 25 to focus on packed lunches, saving money, and simple meal planning.
National Bath Bomb Day
National Bath Bomb Day is observed on May 25 to enjoy fizzy baths, self-care, and relaxing at-home routines.
May Revolution Day
May Revolution Day is observed on May 25 to honor Argentina’s first patriotic government and the events of 1810.
Spring Bank Holiday
Spring Bank Holiday is observed on the last Monday in May as a UK public holiday near the end of spring.
Jordan Independence Day
Jordan Independence Day is observed on May 25 to honor Jordan’s 1946 independence, sovereignty, and national identity.
Gloucestershire Cheese Rolling
Gloucestershire Cheese Rolling is held on the spring bank holiday in late May for the famous Cooper’s Hill cheese race.
Liberation Day in Lebanon
Liberation Day in Lebanon is observed on May 25 to mark the 2000 withdrawal from southern Lebanon.
Bike Day in Canada
Bike Day in Canada is observed on the fourth Monday of May to promote cycling, active travel, and safer streets.
May 26 12
National Paper Airplane Day
Join National Paper Airplane Day on May 26th, create unique designs, and enjoy contests with loved ones.
World Dracula Day
Celebrate World Dracula Day on May 26, honoring Bram Stoker's iconic novel Dracula and its lasting impact on literature and pop culture.
World Red Head Day
Celebrate World Red Head Day on May 26, honoring the unique beauty and cultural significance of redheads worldwide.
World Lindy Hop Day
Celebrate World Lindy Hop Day by dancing to the rhythms of swing and honoring the legacy of Frankie Manning and the rich history of Lindy Hop.
National Blueberry Cheesecake Day
National Blueberry Cheesecake Day is observed on May 26 to enjoy blueberry cheesecake and its creamy fruit-topped flavor.
Scripps National Spelling Bee
Scripps National Spelling Bee is held annually, with the 2026 event May 26 to May 28, to honor student spelling and literacy.
National Cherry Dessert Day
National Cherry Dessert Day is observed on May 26 to enjoy cherry pies, cobblers, crisps, and other fruit desserts.
Sally Ride Day
Sally Ride Day is observed on May 26 to honor the first American woman in space and her legacy in STEM education.
Independence Day in Guyana
Independence Day in Guyana is observed on May 26 to mark Guyana’s independence from the United Kingdom in 1966.
Georgia Independence Day
Georgia Independence Day is observed on May 26 to honor the 1918 declaration of independence and Georgian sovereignty.
National Sorry Day
National Sorry Day is observed on May 26 to remember the Stolen Generations and support healing and reconciliation.
Kent Day (Feast Day of Saint Augustine of Canterbury)
Kent Day is observed on May 26 to honor Saint Augustine of Canterbury and celebrate Kent’s county heritage.
May 27 11
World Otter Day
World Otter Day raises awareness about otters and promotes their conservation through global education and community involvement.
Emergency Medicine Day
Emergency Medicine Day highlights the vital role of emergency medical services and advocates for improved emergency care systems worldwide.
Tabaski Day
Tabaski Day is observed on 10 Dhu al-Hijjah as a West African name for Eid al-Adha, the Feast of Sacrifice.
National Grape Popsicle Day
National Grape Popsicle Day is observed on May 27 to enjoy grape ice pops and a classic warm-weather frozen treat.
National Senior Health and Fitness Day
National Senior Health & Fitness Day is observed on the last Wednesday in May to support older adult wellness and activity.
Nothing to Fear Day
Nothing to Fear Day is observed on May 27 to reflect on fear, courage, and practical steps toward confidence.
Old Time Player Piano Day
Celebrate Old Time Player Piano Day by exploring the history and music of self-playing pianos that brought joy to early 20th-century homes.
National Sunscreen Day
National Sunscreen Day is observed on May 27 to promote sunscreen use, sun safety, and skin protection habits.
National Gray Day
National Gray Day is observed on May 27 to raise awareness of brain cancer, brain tumors, and support for affected families.
National Cellophane Tape Day
National Cellophane Tape Day is observed on May 27 to appreciate clear tape, clever repairs, and everyday invention.
National Hairstylist Mental Health Awareness Day
National Hairstylist Mental Health Awareness Day is observed on May 27 to support stylists’ mental wellness and boundaries.
May 28 14
World Hunger Day
World Hunger Day raises awareness about chronic hunger and advocates for sustainable solutions to end it through community empowerment and global collaboration.
Menstrual Hygiene Day
Menstrual Hygiene Day raises awareness about the importance of good menstrual hygiene management and aims to break the silence surrounding menstruation.
International Day of Action on Women’s Health
International Day of Action for Women's Health advocates for women's sexual and reproductive health rights, promoting global awareness and action.
Amnesty International Day
Amnesty International Day is observed on May 28 to recognize human rights advocacy, prisoners of conscience, and peaceful action.
World Passion Fruit Martini Day
World Passion Fruit Martini Day is observed on May 28 to enjoy the passion fruit cocktail and modern mixology.
National Hamburger Day
National Hamburger Day is observed on May 28 to enjoy hamburgers, grilling season, and classic American casual food.
Slugs Return From Capistrano Day
Slugs Return From Capistrano Day is observed on May 28 as a funny garden day about slugs, plants, and backyard nature.
Whooping Crane Day
Whooping Crane Day is observed on May 28 to raise awareness of endangered whooping cranes and wetland conservation.
National Brisket Day
National Brisket Day is observed on May 28 to enjoy slow-cooked brisket, barbecue, and tender braised beef.
National Flag Day in the Philippines
National Flag Day in the Philippines is observed on May 28 to honor the flag, the Battle of Alapan, and independence history.
National Day of Ethiopia
National Day of Ethiopia is observed on May 28 to mark the 1991 fall of the Derg regime and Ethiopia’s modern transition.
First Republic Day in Armenia
First Republic Day in Armenia is observed on May 28 to honor the 1918 founding of the First Republic and Armenian statehood.
Founding of the Democratic Republic of Azerbaijan
Founding of the Democratic Republic of Azerbaijan is observed on May 28 to honor the 1918 republic and national statehood.
National Burger Day
National Burger Day on May 28 celebrates the humble hamburger. Learn its history, why it matters, and how to enjoy this versatile, delicious food. Find
May 29 20
Mount Everest Day
Mount Everest Day commemorates the first successful ascent of the world's highest peak by Sir Edmund Hillary and Tenzing Norgay, celebrating human endurance and the spirit of adventure.
World Digestive Health Day
World Digestive Health Day promotes awareness of digestive health and encourages proactive steps to prevent and manage gastrointestinal disorders.
Put a Pillow on your Fridge Day
Put a Pillow on Your Fridge Day is observed on May 29 as a quirky good-luck custom tied to home, food, and prosperity.
Ascension of Bahau'llah
Ascension of Bahá’u’lláh is observed on 13 ‘Aẓamat to commemorate Bahá’u’lláh’s passing and sacred Bahá’í remembrance.
International Day of UN Peacekeepers
International Day of UN Peacekeepers is observed on May 29 to honor UN peacekeepers, their service, and their sacrifice.
European Neighbors' Day
European Neighbors' Day is observed on the last Friday of May to build neighborly connection and reduce isolation.
National Alligator Day
National Alligator Day is observed on May 29 to learn about alligators, wetland habitats, and wildlife conservation.
National 529 Day
National 529 Day is observed on May 29 to promote education savings plans and planning for future school costs.
National Snail Day
National Snail Day is observed on May 29 to appreciate snails, small wildlife, and their role in ecosystems.
End of the Middle Ages Day
End of the Middle Ages Day is observed on May 29 to reflect on Constantinople, 1453, and a major historical transition.
National Heat Awareness Day
National Heat Awareness Day is observed on the last Friday of May to raise awareness about heat illness and basic safety steps.
National Coq Au Vin Day
National Coq Au Vin Day honors the French wine-braised chicken dish each year on May 29. Rustic French flavor.
Wisconsin Statehood Day
Wisconsin Statehood Day is observed on May 29 to mark Wisconsin becoming the 30th state and reflect on its history.
National Paperclip Day
National Paperclip Day is observed on May 29 to recognize the small wire fastener and its place in office organization.
Learn About Composting Day
Learn About Composting Day is observed on May 29 to learn composting basics, reduce waste, and support healthier soil.
National Hydroxyapatite Day
National Hydroxyapatite Day is observed on May 29 to spotlight enamel health, dental care, and hydroxyapatite toothpaste.
Rhode Island Statehood Day
Rhode Island Statehood Day is observed on May 29 to mark the state’s 1790 ratification of the U.S. Constitution.
Republic Day in Nepal
Republic Day in Nepal is observed on Jestha 15 to mark the country’s transition to a federal democratic republic.
Oak Apple Day
Oak Apple Day is observed on May 29 to mark the Restoration, Charles II, and the historic Royal Oak tradition.
National Biscuit Day in UK
National Biscuit Day in the UK is observed on May 29 to enjoy biscuits, tea breaks, baking, and favorite British treats.
May 30 12
International Hug Your Cat Day
International Hug Your Cat Day celebrates the special bond between humans and cats, encouraging owners to show affection and appreciation for their feline friends.
International Potato Day
International Day of Potato is observed on May 30 to recognize potatoes, food security, farming, and rural livelihoods.
World Multiple Sclerosis Day
World Multiple Sclerosis Day is observed on May 30 to raise awareness of MS, diagnosis, support, and access to care.
National Creativity Day
National Creativity Day is observed on May 30 to recognize creative expression, imagination, and practical idea-making.
National Mint Julep Day
National Mint Julep Day is observed on May 30 to enjoy the classic mint, bourbon, sugar, and crushed ice cocktail.
Fakesgiving
Fakesgiving is observed on May 30 as a playful Thanksgiving-style day for food, gratitude, friends, and family.
National Hole In My Bucket Day
National Hole In My Bucket Day is observed on May 30 to enjoy a classic children’s song and playful bucket-themed reuse.
Loomis Day
Loomis Day is observed on May 30 to honor Mahlon Loomis and early ideas about wireless telegraphy.
National Water a Flower Day
National Water a Flower Day is observed on May 30 to care for flowers, gardens, and blooming plants.
Indian Arrival Day in Trinidad and Tobago
Indian Arrival Day in Trinidad and Tobago is observed on May 30 to honor Indian indentured laborers and cultural heritage.
Day of the Canary Islands
Day of the Canary Islands is observed on May 30 to honor Canarian culture, identity, and regional self-government.
Anguilla Day
Anguilla Day is observed on May 30 to honor the 1967 revolution, national pride, and Anguillian identity.
May 31 16
Brothers and Sisters Day in Europe
Brothers and Sisters Day on May 31 celebrates the special bond between siblings, encouraging appreciation, reconnection, and the strengthening of family ties.
International Flight Attendant Day
International Flight Attendant Day honors the dedication and professionalism of flight attendants, recognizing their vital role in ensuring passenger safety and comfort.
World No Tobacco Day
World No Tobacco Day on May 31 raises awareness about the health risks of tobacco use and promotes actions to achieve a tobacco-free world.
World Parrot Day
World Parrot Day raises awareness about parrot conservation and promotes efforts to protect parrots and their habitats.
Trinity Sunday
Trinity Sunday is observed on the Sunday after Pentecost to honor the Christian doctrine of the Father, Son, and Holy Spirit.
Orthodox Pentecost Sunday
Orthodox Pentecost Sunday is observed seven Sundays after Orthodox Easter to honor the descent of the Holy Spirit.
Web Designer Day
Web Designer Day is observed on May 31 to recognize web designers, user-friendly websites, and digital design work.
National Smile Day
National Smile Day is observed on May 31 to enjoy smiles, kindness, confidence, and healthy oral-care habits.
National Macaroon Day
National Macaroon Day is observed on May 31 to enjoy chewy coconut cookies and classic bakery treats.
National Speak in Complete Sentences Day
National Speak in Complete Sentences Day is observed on May 31 to practice clear grammar and full thoughts in speech and writing.
National Utah Day
National Utah Day is observed on May 31 to recognize Utah’s history, landscapes, people, and Beehive State identity.
Autonomous Vehicle Day
Autonomous Vehicle Day is observed on May 31 to explore self-driving technology, safety, mobility, and future transportation.
National Save Your Hearing Day
National Save Your Hearing Day is observed on May 31 to promote hearing protection, safer listening, and noise awareness.
What You Think Upon Grows Day
What You Think Upon Grows Day is observed on May 31 to focus on positive thinking, gratitude, and personal reflection.
Necrotizing Fasciitis Awareness Day
Necrotizing Fasciitis Awareness Day is observed on May 31 to raise awareness of symptoms, urgent care, and survivor support.
Northumberland Day in England
Northumberland Day in England is observed on the last Sunday of May to celebrate county heritage, landscapes, and local pride.
Daily Calendar of Holidays in May
The May calendar contains a comprehensive list of both national and international holidays, sorted by date. We have taken meticulous care to ensure that each holiday’s date is accurate for the current year. The list displayed on this page has been reviewed and revised for 2026.
What holidays are celebrated in May?
Some major holidays in May 2026: Workers’ Day (May Day), Mother’s Day, Memorial Day, Cinco de Mayo, Buddha’s Birthday and many others.