April 2027 observances

Cyprus National Day

Cyprus / public-holiday calendar

Official Cyprus diplomatic material lists Cyprus National Day on 1 April among the country’s public holidays.

International Edible Book Festival / Edible Book Day

International participatory book-art/food event

The Books2Eat creator site identifies Judith A. Hoffberg and Béatrice Coron as the creators and explains the April 1 date for the International Edible Book Festival.

Investiture of the Most Excellent Captains Regent

Republic of San Marino state investiture ceremony

Republic of San Marino / Visit San Marino

National Greeting Card Day

United States / Lovepop-created greeting-card observance

Lovepop states that it marks April 1 as National Greeting Card Day, tying the date to its April 1, 2014 launch; National Day Archives records April 1 of each calendar year and identifies Lo…

National Sourdough Bread Day

Informal food-calendar usage documented by Association of Nutrition & Foodservice Professionals chapter material

Two Association of Nutrition & Foodservice Professionals chapter calendars list National Sourdough Bread Day on 1 April.

National Trombone Players Day

United States / informal music observance

PBS Arizona acknowledges National Trombone Players Day on April 1, and AnydayGuide independently places the observance annually on April 1.

Odisha Day (Utkala Dibasa)

Odisha state observance

Chief Minister of Odisha / Government of Odisha

International Fact-Checking Day

Organizer-backed global information-integrity observance

International Fact-Checking Network (IFCN) at Poynter

Love Your Produce Manager® Day

United States / Frieda’s Specialty Produce creator-backed industry appreciation observance

Frieda’s first-party material places Love Your Produce Manager Day on April 2 and states that the company created the holiday on its 50th anniversary in 2012.

National DIY Day

Craft Box Girls-founded creativity and making campaign

Craft Box Girls states it launched the first National DIY Day on 2 April 2016 and uses 2 April for the campaign.

National Reconciliation Day

United States / informal relationship-repair observance

National Today and Days Of The Year independently place National Reconciliation Day on April 2 each year.

National Ride Your Horse to a Bar Day

United States / informal novelty observance

National Day Archives places National Ride Your Horse to a Bar Day on April 2 and identifies a 2021 creator registration, while ABC6 independently reported participation in the observance o…

Pascua Florida Day

Florida State Day by statute

Florida Statutes

Union State Day / Day of Unity of the Peoples of Belarus and Russia

Belarus–Russia Union State — intergovernmental observance

Official Union State portal material stating the day is celebrated annually on 2 April

World Autism Awareness Day

United Nations / international observance

A/RES/62/139

American Circus Day

United States / informal circus-history observance

National Today lists American Circus Day every April 3, while Smithsonian independently documents that the first American circus debuted in Philadelphia on April 3, 1793.

Birth anniversary of National Artist Lino Brocka

Philippines / DILG cultural advocacy calendar

The DILG Aurora advocacy calendar lists the birth anniversary of National Artist Lino Brocka on April 3 and gives 1939 as the birth year.

Every Day is Tag Day™

United States pet-identification awareness campaign

American Humane states that it created Every Day is Tag Day as a nationwide effort held annually on the first Saturday in April to encourage current pet identification.

Fish Fingers and Custard Day

Doctor Who fandom / franchise-promoted observance

The official Doctor Who channel promoted “Fish Fingers & Custard day” for April 3, linking the observance to the franchise’s Eleventh Doctor food scene.

National Chocolate Mousse Day

Informal food-calendar usage documented by Association of Nutrition & Foodservice Professionals chapter material

Two Association of Nutrition & Foodservice Professionals chapter calendars list National Chocolate Mousse Day on 3 April.

National Film Score Day

United States / Movie Scores and More Radio-created film-music appreciation day

National Day Calendar’s proclamation identifies Jeffrey D. Kern of Movie Scores and More Radio as founder and April 3 as the annual observance date.

National Find a Rainbow Day

United States / informal seasonal observance

The Georgia Lottery has run an official National Find a Rainbow Day promotion on 3 April, while other institutional/brand calendars also use April 3. This supports the stable informal date…

National Love Our Children Day

United States / child-safety and prevention awareness

U.S. Army-hosted public information describes National Love Our Children Day as taking place on the first Saturday in April.

World Party Day

International / informal celebration observance

timeanddate and National Today identify April 3 as the annual date associated with World Party Day.

A Drop of Water is a Grain of Gold

Turkmenistan

Geologist Day

Russia / geology profession

Kazan Federal University describes Russian Geologist Day as occurring on the first Sunday in April, supporting a deterministic annual rule within the Russian professional context.

Independence Day

Senegal

Australia’s Department of Foreign Affairs and Trade current National Days protocol register lists Senegal — Independence Day on 4 April. The source verifies the diplomatic national-day iden…

International Day for Mine Awareness and Assistance in Mine Action

United Nations / international observance

A/RES/60/97

National Baked Ham with Pineapple Day

Informal food-calendar usage documented by Association of Nutrition & Foodservice Professionals chapter material

Two Association of Nutrition & Foodservice Professionals chapter calendars from different publication years list National Baked Ham with Pineapple Day as the first sunday of april.

National Hug a Newsperson Day

United States / informal news-professional appreciation observance

National Day Calendar and National Today independently place National Hug a Newsperson Day on April 4 each year; National Day Calendar also documents the older “National Hug a Newsman Day”…

National Walk Around Things Day

United States / informal lifestyle and humor observance

National Day Calendar and National Today independently place National Walk Around Things Day on April 4 each year.

School Librarian Day

United States / school-library professional recognition

American Association of School Librarians publications identify April 4 as National School Librarian Day/School Librarian Day.

Victims of Violence Wholly Day

United States / informal civil-rights remembrance observance

National Today places Victims of Violence Wholly Day on April 4 and links it to the anniversary of Martin Luther King Jr.'s assassination; Checkiday independently lists it annually on April…

Accelerate ACL Awareness Among Young Women Day

United States / informal ACL-injury awareness observance

National Today and Holidays & Observances independently place Accelerate ACL Awareness Among Young Women Day on April 5.

First Contact Day

Star Trek franchise / science-fiction fandom

StarTrek.com marks April 5 as First Contact Day, referring to the fictional 2063 first interaction between humans and Vulcans in Star Trek continuity

Gold Star Spouses Day

United States military-family remembrance and recognition observance

U.S. Department of Defense source verification

International Day of Conscience

United Nations international observance

A/RES/73/329

National Deep Dish Pizza Day

United States / brand-created and broadly promoted informal food observance

UNO stated in 2010 that April 5 is National Deep Dish Pizza Day and that it was first designated in 2009 for UNO’s anniversary; UNO continues to promote the observance.

National Nebraska Day

United States / National Day Calendar National State Days series — Nebraska

National Day Calendar lists National Nebraska Day on 5 April. The U.S. Senate records Nebraska’s admission/statehood date as 1 March 1867. The two dates are deliberately kept separate so th…

National Raisin and Spice Bar Day

Informal food-calendar usage documented by Association of Nutrition & Foodservice Professionals chapter material

Two Association of Nutrition & Foodservice Professionals chapter calendars list National Raisin and Spice Bar Day on 5 April.

National Recommit to Your Fitness Day

United States / F45 Training-created fitness campaign

F45 Training announced National Recommit to Your Fitness Day as a new annual initiative set to be observed every year on April 5 (4/5), a date selected as a reference to the F45 name.

Bohring-Opitz Syndrome Awareness Day

International / Bohring-Opitz Syndrome Foundation awareness campaign

The BOS Foundation states that Bohring-Opitz Syndrome Awareness Day takes place on 6 April each year and that the first awareness day was organized on 6 April 2015.

California Poppy Day

California, United States / state-designated educational observance

California Department of Education cites Education Code section 37222.12, which designates April 6 of each year as California Poppy Day.

Drowsy Driver Awareness Day

California, United States / state legislative memorial observance

California Senate Concurrent Resolution 27 proclaimed April 6, 2005 as Drowsy Driver Awareness Day and designated April 6 of every following year as the state’s memorial observance.

International Day of Sport for Development and Peace

United Nations international observance

A/RES/67/296

National Food Faces Day

United States / Holland America Line and chef Rudi Sodamin-created food-art observance

Holland America Line announced April 6 as National Food Faces Day in honor of chef Rudi Sodamin’s food-art work; observance registration corroborates the date.

National Library Day

United States / informal library-appreciation observance

National Today places National Library Day on April 6, and EventGuide independently lists it every April 6 across multiple years.

National Siamese Cat Day

United States / Jace Shoemaker-Galloway-created cat adoption-awareness observance

Jace Shoemaker-Galloway’s own holiday list places National Siamese Cat Day on April 6, and UPI reports that she declared the first annual observance in 2014.

National Student-Athlete Day

U.S. student-athlete recognition / NCAA participation

The NCAA marks National Student-Athlete Day on April 6 and uses the observance to recognize student-athlete accomplishments in academics, well-being and community service.

New Beer’s Eve

United States / 1933 beer-legalization history and modern beer-culture observance

Boulevard Brewing documents New Beer’s Eve on 6 April as the eve of the 1933 return of legally saleable beer under the Cullen-Harrison Act; Library of Congress material independently anchor…

Sexual Assault Awareness Month (SAAM) Day of Action

United States / NSVRC prevention-awareness campaign

The National Sexual Violence Resource Center states that SAAM Day of Action occurs on the first Tuesday of every April and lists 7 April for 2026.

Tartan Day

Canadian heritage observance

Government of Canada official-symbols guidance

Childhelp National Day of Hope

United States child-abuse prevention and survivor-support awareness observance

Childhelp; congressional recognition cited by the organizer

Coffee Cake Day

Informal food-calendar usage documented by Association of Nutrition & Foodservice Professionals chapter material

ANFP chapter calendar material lists Coffee Cake Day on April 7.

International Beaver Day

International / beaver conservation awareness

The Smithsonian’s National Zoo identifies 7 April as International Beaver Day, and a current municipal conservation notice also recognizes the date.

International Day of Reflection on the 1994 Genocide against the Tutsi in Rwanda

United Nations / international observance

A/RES/58/234

Karume Day

Tanzania public holiday and remembrance

United Republic of Tanzania government sources

Motherhood and Beauty Day

Armenia / national cultural observance associated with the Annunciation

The President of Armenia issued a 7 April 2026 message specifically for the Annunciation and Motherhood and Beauty Day.

Mozambican Women’s Day (Dia da Mulher Moçambicana)

Mozambique / national holiday

Mozambique’s Government Portal lists 7 April as Dia da Mulher Moçambicana and links the holiday to remembrance of Josina Machel.

National Beer Day

United States / brewing-industry observance tied to the Cullen-Harrison Act

The Brewers Association lists National Beer Day on 7 April 2026 and explains that it commemorates the Cullen-Harrison Act taking effect on 7 April 1933.

National Girl Me Too Day

United States / Girl Me Too movement recognition day founded by Symonia Montgomery

The Girl Me Too organization identifies April 7 as National Girl Me Too Day and attributes the initiative to founder Symonia Montgomery.

National Making the First Move Day

United States / informal relationship and personal-agency observance

Days Of The Year identifies April 7 and names Greshun De Bouse / First Move Life Coaching LLC as founder; LCTI independently acknowledges National Making the First Move Day on April 7.

National Pet Health Insurance Day

United States / informal pet-insurance awareness observance

Current veterinary-institution and calendar sources consistently list National Pet Health Insurance Day on April 7. No primary founder was located in this verification wave, so the record v…

National Walking Day

American Heart Association health and physical-activity observance

American Heart Association

Paraprofessional Appreciation Day

United States / education-community appreciation observance

Education-union and school-system sources identify Paraprofessional Appreciation Day as the first Wednesday in April; AFT marked the day in its April 2026 PSRP update.

Public Television Day

United States / informal broadcasting-history appreciation observance

National Today places Public Television Day on April 7 annually, and EventGuide independently lists it every April 7.

World Health Day

World Health Organization global health observance

WHA/A.2/Res.35

Draw A Bird Day

International informal art/remembrance observance / creator-maintained site

The Draw A Bird Day site states that the observance is held on April 8 every year and explicitly notes that it is not an official holiday.

International Feng Shui Awareness Day

International / informal cultural-awareness observance

National Today and Days Of The Year independently place International Feng Shui Awareness Day on April 8 each year.

International Pageant Day

International pageant community / community-created recognition day

Pageant Planet’s archived podcast published for International Pageant Day identifies April 8, and observance references consistently describe the pageant-community day as an annual April 8…

International Roma Day

international Roma culture, rights and equality observance

Council of Europe source verification / international Roma community observance

National Dog Fighting Awareness Day

United States / ASPCA animal-cruelty awareness campaign

The ASPCA designated April 8 as National Dog Fighting Awareness Day in 2014 and has described it as an annual awareness effort against dog fighting.

Trading Cards for Grown-ups Day

United States / creator-defined informal Wellcat observance

Wellcat Holidays lists Trading Cards for Grown-ups Day on April 8.

Araw ng Kagitingan (Day of Valor)

Philippine regular holiday; “Bataan Day” is a common/legacy English label

Philippine Presidential proclamation and official legal sources

International ASMR Day

Community/media observance associated with ASMR creators and audiences

YouTube’s official Culture & Trends blog identified 9 April 2024 as International ASMR Day; independent observance calendars consistently use 9 April as the annual date.

National Chinese Almond Cookie Day

Informal food-calendar usage documented by Association of Nutrition & Foodservice Professionals chapter material

ANFP chapter calendar material lists National Chinese Almond Cookie Day on April 9.

National Donate Life Blue & Green Day

United States / Donate Life America organ, eye and tissue donation awareness campaign

Donate Life America states National Donate Life Blue & Green Day is observed on the second Friday of April each year; New York State health authorities documented the April 10, 2026 observa…

National Fast and Prayer Day

Liberia / national fast-and-prayer observance

Liberia’s Ministry of Foreign Affairs states that an 1883 law established the second Friday in April of each year as National Fast and Prayer Day.

National Former POW Recognition Day

United States / Department of Veterans Affairs remembrance observance

The U.S. Department of Veterans Affairs states that National Former POW Recognition Day is observed annually on April 9 to honor former prisoners of war who returned home.

National Gin and Tonic Day

Informal beverage observance with independent brand/industry-media usage

Marketing Dive records Bombay Sapphire launching campaign content on National Gin and Tonic Day, April 9, and Forbes independently identifies the same April 9 observance date.

National Mature Women’s Day

United States / Laura Geller Beauty brand-created observance

Laura Geller Beauty’s own releases identify April 9 as National Mature Women’s Day and state that the brand created the observance.

National Name Yourself Day

United States / informal identity-and-fun observance

National Day Calendar and National Today independently place National Name Yourself Day on April 9 each year.

Vimy Ridge Day

Canadian national day of remembrance of the Battle of Vimy Ridge

Canadian Heritage, Government of Canada

Birth anniversary of Manlilikha ng Bayan Masino Intaray

Philippines / DILG cultural advocacy calendar

The DILG Aurora advocacy calendar lists the birth anniversary of Manlilikha ng Bayan Masino Intaray on April 10 and gives 1943 as the birth year.

Global Work From Home Day

International / informal remote-work observance

National Today and EventGuide independently place Global Work From Home Day on April 10 each year.

National Encourage a Young Writer Day

United States / informal literary and educational observance with repeated state legislative recognition

New York Senate resolutions for both 2021 and 2022 recognize April 10 in conjunction with the observance of National Encourage a Young Writer Day, independently confirming the recurring mon…

National Farm Animals Day

United States / animal-welfare awareness observance created by Colleen Paige

Observance and historical-society sources identify April 10 as National Farm Animals Day and trace its creation to Colleen Paige in 2005.

National Hug Your Dog Day

United States / informal pet observance

The Animal Medical Center repeatedly lists National Hug Your Dog Day on April 10, with independent veterinary-practice corroboration for the same date.

National Report IRS Tax Fraud Day

United States / Joel Hesch-created tax-fraud reporting awareness observance

National Day Archives records April 10 each year for National Report IRS Tax Fraud Day and identifies former DOJ attorney Joel Hesch as the creator.

National Siblings Day

United States / Siblings Day Foundation recognition campaign

The Siblings Day Foundation states that its mission since 1995 has included establishing National Siblings Day annually on 10 April.

National Transplant Financial Coordinator Day

United States / transplant financial coordinator professional recognition

National Day Archives attributes creation of the observance to the Transplant Financial Coordinators Association board and ties 10 April to the association’s 2001 agreement date; a separate…

National Youth HIV and AIDS Awareness Day

United States

Walter Hunt safety-pin patent anniversary

Invention-history anniversary / Walter Hunt U.S. safety-pin patent

The original U.S. Patent No. 6,281 text identifies Walter Hunt’s dress-pin invention and dates the patent 10 April 1849; Smithsonian collections also identify Hunt with the safety-pin inven…

Dog Therapy Appreciation Day

Informal pet/therapy-animal appreciation calendar usage documented by a veterinary institution

The Animal Medical Center repeatedly lists Dog Therapy Appreciation Day on April 11 in annual pet-awareness calendars.

Día de la Batalla de Rivas

Costa Rica / statutory national commemoration

Costa Rica’s Legislative Assembly record for Act 8886 states that April 11 each year, the Day of the Battle of Rivas, is to be enjoyed and commemorated on the date itself.

International Louie Louie Day

Grassroots music/fan observance centered on the song “Louie Louie”

The Louie Louie advocacy/fan community documents International Louie Louie Day and its April 11 tradition, developed through the Louie Louie Advocacy and Music Appreciation Society ecosyste…

Marketing Operations Appreciation Day

Professional/workplace / Zapier-created Marketing Operations Appreciation Day

Zapier’s own 2023 campaign page states that Marketing Operations Appreciation Day is April 11 and describes it as an annual recognition initiative.

National Barbershop Quartet Day

Barbershop Harmony Society / organized barbershop commemoration

The Barbershop Harmony Society says National Barbershop Quartet Day commemorates the birth of the organized barbershop movement on 11 April 1938.

National Cheese Fondue Day

United States / informal food observance repeatedly promoted by The Melting Pot

The Melting Pot’s first-party 2025 material identifies April 11 as National Cheese Fondue Day, continuing a long-running brand celebration.

National Clean Up Your Pantry Day

United States / informal home-organization observance

National Today and Days Of The Year independently place National Clean Up Your Pantry Day on April 11 each year.

National Pet Day

United States-origin / creator-led pet observance with public-institution recognition

Founder Colleen Paige’s current holiday list places National Pet Day on April 11, and the U.S. Census Bureau lists National Pet Day on April 11 in its current April resources.

National Ranch Water Day

United States / RANCH2O Spirits-created beverage observance

RANCH2O Spirits publishes April 11 as National Ranch Water Day, and the National Day Archives registry states that April 11 is observed each calendar year and that RANCH2O created the day i…

World Parkinson's Day

Organizer-backed international observance

Parkinson's Europe and the international Parkinson’s community

Cosmonautics Day

Russian Federation — space commemoration

Official website of the President of Russia / current 2026 Cosmonautics Day material

Grilled Cheese Sandwich Day

Informal food-calendar usage documented by Association of Nutrition & Foodservice Professionals chapter material

Two Association of Nutrition & Foodservice Professionals chapter calendars from different publication years list Grilled Cheese Sandwich Day on 12 April.

International Day for Street Children

Global street-connected children rights campaign

The Consortium for Street Children states that International Day for Street Children is celebrated every year, and its 2025 campaign page identifies April 12 as the annual date and focuses…

International Day of Human Space Flight

United Nations / international observance

A/RES/65/271

Teak Awareness Day

International / informal teak-education observance created by Westminster Teak

Westminster Teak states that it created Teak Awareness Day in 2019 and observes it on April 12; EventGuide independently lists Teak Awareness Day every April 12.

Walk on Your Wild Side Day

United States / creator-defined informal Wellcat observance

Thomas and Ruth Roy’s first-party calendar lists Walk on Your Wild Side Day on April 12.

World Hamster Day

Informal animal-awareness calendar usage; canonical source wording is “World Hamster Day”

The Animal Medical Center repeatedly lists World Hamster Day on April 12 in annual pet-awareness calendars.

International Be Kind To Lawyers Day

International / creator-led legal-profession observance

The National Association of College and University Attorneys identifies Steve Hughes as the creator and states that the day is celebrated annually on the second Tuesday in April.

International FND Awareness Day

FND Hope International / awareness campaign

FND Hope’s advisory-board material states that it supports the annual International FND Awareness Day on April 13, with older first-party campaign material documenting the same date.

International Plant Appreciation Day

International / informal plant-appreciation observance

Antigua and Barbuda’s Ministry of Agriculture states that International Plant Appreciation Day is observed every year on April 13, and National Today independently lists the same annual dat…

National Borinqueneers Day

United States recognition of the 65th Infantry Regiment / Borinqueneers

U.S. Senate Resolution 641 (2020) and subsequent federal recognition

National Make Lunch Count Day

United States / TGI Fridays-created lunch-break campaign observance

National Day Calendar and launch-era material attribute the 2016 observance to TGI Fridays and place it on April 13.

National Silly Earring Day

Creator-led lifestyle observance / TheTravelBugBite and Oddity Cart

The creator’s own 2021 announcement states that National Silly Earring Day was founded as an annual observance on April 13.

RAINN Day

Sexual-violence awareness and campus activism observance

RAINN

Thomas Jefferson's birthday

United States / federal birthday commemoration

36 U.S.C. §141 requires an annual proclamation inviting observance of April 13 in commemoration of Thomas Jefferson's birthday.

Birth anniversary of Dr. B. R. Ambedkar

India

India’s Press Information Bureau reported official observance of Dr. B. R. Ambedkar’s birth anniversary on 14 April 2026.

International Day of Pink

anti-bullying, anti-discrimination and inclusion observance

International Day of Pink organization

National Ex-Spouse Day

United States / informal relationship observance

Independent observance calendars identify April 14 as National Ex-Spouse Day.

National Gardening Day

United States / widely recognized gardening observance with current USDA NIFA recognition

USDA’s National Institute of Food and Agriculture lists April 14 as National Gardening Day in its 2026 social-media toolkit.

National Look Up at the Sky Day

United States / informal nature-appreciation observance

National Today uses National Look Up at the Sky Day on April 14; National Day Calendar uses Look Up at the Sky Day on the same annual date.

Pan American Day

Organization of American States hemispheric commemoration

Organization of American States

Pathologists’ Assistants Day

International / American Association of Pathologists’ Assistants professional recognition

The American Association of Pathologists’ Assistants identifies April 14 as PA Day/Pathologists’ Assistants Day and has repeatedly promoted the annual professional recognition.

U.S. Air Force Reserve Birthday

United States / Air Force Reserve

Air Force Reserve Command materials mark 14 April 2026 as the Air Force Reserve’s 78th anniversary.

World Chagas Disease Day

WHO / international observance

WHO observance

College Student Grief Awareness Day

United States / college-student grief awareness associated with Actively Moving Forward

Multiple observance references place College Student Grief Awareness Day on the third Thursday in April and attribute it to Actively Moving Forward; HealGrief hosts the current AMF college-…

Hari Perisytiharan Melaka Sebagai Bandaraya Bersejarah

Melaka, Malaysia / state commemorative observance

Melaka state history records the Historical City declaration on 15 April 1989, while a Malaysian government calendar carries the proclamation-day observance on 15 April.

International Microvolunteering Day

Volunteer-sector awareness day focused on small, flexible acts of volunteering

Nottingham Trent University’s 2026 volunteering program identifies International Micro Volunteering Day on 15 April and describes its small-action volunteering purpose.

International Pizza Cake Day

International / informal food observance

National Today and Checkiday independently define International Pizza Cake Day as the third Thursday in April.

International Wellness Day

United Nations / international observance

A/RES/80/249

Jackie Robinson Day

Major League Baseball / league-wide observance

MLB states that every April 15 baseball honors Jackie Robinson’s legacy and that April 15 has been dedicated as Jackie Robinson Day each year since 2004; MLB also documented the 2026 league…

National Anime Day

International / informal anime-appreciation observance

National Today and Days Of The Year independently place National Anime Day on April 15 each year.

National Glazed-Spiral Ham Day

Informal food-calendar usage documented by Association of Nutrition & Foodservice Professionals chapter material

Two Association of Nutrition & Foodservice Professionals chapter calendars from different publication years list National Glazed-Spiral Ham Day on 15 April.

National Griper’s Day

United States / informal humorous observance

National Today and EventGuide independently list National Griper’s Day on April 15.

National High Five Day

National High Five Day nonprofit project / United States-origin campaign

The official National High Five Day project describes the third-Thursday-in-April recurrence and its 2002 origin at the University of Virginia

One Boston Day

City of Boston annual civic day

City of Boston mayoral proclamation

RMS Titanic sinking anniversary

International maritime-history remembrance / Titanic sinking anniversary

NOAA records that RMS Titanic sank on 15 April 1912 after striking an iceberg in the North Atlantic.

Type 1 Diabetes Day in Honor of Jakya Monique Furtick

Creator-established Type 1 diabetes remembrance and awareness observance

Observance registry documentation identifies Coreen Logan as creating the day in 2019 in honor of her daughter Jakya Monique Furtick and places it on 15 April; a second observance reference…

Universal Day of Culture under the Banner of Peace

International Roerich/Banner of Peace cultural movement

Nicholas Roerich’s writings proposed a World/Universal Day of Culture, and the international movement dedicated to the initiative identifies 15 April as its observance.

World Art Day

UNESCO world day

Foursquare Day (4SQDay)

Foursquare user/Superuser community / brand-community observance

Foursquare’s own material describes 4SQDay as an annual community holiday centered on April 16, with community events sometimes scheduled around that date.

International Documentary Day

International / filmmaker-led documentary appreciation observance launched in 2026

Organizer-side launch material describes April 16 as an annual documentary observance beginning in 2026, and current calendar coverage likewise specifies April 16 every year.

José de Diego Commemoration Day

Puerto Rico / statutory commemorative day honoring José de Diego; not a public holiday

Puerto Rico law preserves April 16 as a commemorative day for José de Diego while distinguishing it from the consolidated Próceres public holiday.

National Bean Counter Day

United States / informal accounting-profession observance

National Day Calendar places National Bean Counter Day on April 16 and credits Kevin Wenig, while National Today independently uses April 16.

National Healthcare Decisions Day

United States / advance-care-planning awareness initiative

The Conversation Project’s National Healthcare Decisions Day page identifies April 16 and frames the initiative around inspiring, educating and empowering the public and providers about adv…

National Librarian Day

United States / informal librarian-appreciation observance recognized by public institutions

U.S. Census Bureau educational outreach identifies April 16 as National Librarian Day, and Library of Virginia materials list April 16, 2027 as National Librarian Day, supporting recurring…

World Semicolon Day

mental-health awareness and resilience observance

Project Semicolon

World Voice Day

international voice awareness observance

World Voice Day Committee and international voice-health community

Evacuation Day (Independence Day)

Syria / national public-holiday calendar

The Syrian Arab Republic’s current eAIP public-holiday table, effective 27 March 2026, lists 17 April as Evacuation Day (Independence Day).

International Bat Appreciation Day

International / bat conservation awareness

IUCN’s 2025 conservation feature explicitly identifies International Bat Appreciation Day as 17 April and describes it as an annual occasion for highlighting bats’ ecological importance.

Malbec World Day

Argentine Malbec wine and cultural-promotion observance

Wines of Argentina / Malbec World Day

National Cheeseball Day

Informal food-calendar usage documented by Association of Nutrition & Foodservice Professionals chapter material

ANFP chapter calendar material lists National Cheeseball Day on April 17.

National Crawfish Day

United States / informal food observance

National Today and Days Of The Year independently place National Crawfish Day on April 17 each year.

World Circus Day

Global / Fédération Mondiale du Cirque observance

The Fédération Mondiale du Cirque identifies World Circus Day as the third Saturday in April each year and gives 18 April for 2026.

World Hemophilia Day

Organizer-backed international observance

World Federation of Hemophilia (WFH)

World Mustang Day

Ford / Mustang heritage celebration

Ford’s media materials call 17 April World Mustang Day and tie the date to the Mustang’s public debut in 1964.

Adult Autism Awareness Day

International / informal autism-awareness observance

National Today and Checkiday independently place Adult Autism Awareness Day on April 18 each year.

International Day for Monuments and Sites

ICOMOS international heritage observance; concept adopted by UNESCO in 1983

International Council on Monuments and Sites (ICOMOS)

National Animal Crackers Day

United States / informal food observance

National Day Archives lists the canonical plural National Animal Crackers Day on April 18; the public singular title is retained as an alias.

National Exercise Day

United States / informal registered wellness observance

National Day Archives lists National Exercise Day on April 18 and identifies Jeuse Saint-Fleur, DNP as its creator in 2020.

National Newspaper Columnists Day

United States newspaper-columnist recognition observance

National Society of Newspaper Columnists

Pet Owner's Independence Day

United States / creator-defined informal Wellcat observance

The first-party Wellcat Holidays calendar lists Pet Owner's Independence Day on April 18 and identifies the collection as created by Thomas and Ruth Roy.

World Amateur Radio Day

Organizer-backed international observance

International Amateur Radio Union (IARU)

Congenital Diaphragmatic Hernia Awareness Day

Health-awareness observance organized and promoted by the CDH community

CDH International identifies 19 April as Congenital Diaphragmatic Hernia Awareness Day; historic proclamations also document the observance.

National Amaretto Day

Informal food-calendar usage documented by Association of Nutrition & Foodservice Professionals chapter material

Two Association of Nutrition & Foodservice Professionals chapter calendars list National Amaretto Day on 19 April.

National Cat Lady Day

International / CatCon-created cat-lover celebration

CatCon states that founder Susan Michals created National Cat Lady Day in 2017 and that it takes place each year on April 19.

National Dog Parent Appreciation Day

United States / Dr. Marty Pets-created dog-parent appreciation day

National Day Archives records April 19 as the annual date and identifies Dr. Marty Pets as the creator in March 2021; contemporary launch coverage confirms the inaugural 2021 observance.

National Hanging Out Day

United States / Project Laundry List air-drying awareness campaign

National Day Calendar documents April 19 and says Project Laundry List and partner organizations have sponsored National Hanging Out Day since 1995.

National North Dakota Day

United States / National Day Calendar National State Days series — North Dakota

National Day Calendar lists National North Dakota Day on 19 April. The U.S. Senate records North Dakota’s admission/statehood date as 2 November 1889. The two dates are deliberately kept se…

Oklahoma City Bombing Anniversary / Annual Remembrance Ceremony

Oklahoma City bombing remembrance; the canonical “National ... Commemoration Day” title is not treated as a federal holiday designation

The National Park Service identifies the Oklahoma City National Memorial as honoring those changed forever by the 19 April 1995 bombing; Oklahoma public records and the annual Memorial cere…

Chinese Language Day

United Nations / international observance

United Nations language observance

National Bunion Day

United States / Treace Medical Concepts bunion-awareness campaign

Treace announced the first annual National Bunion Day and states that it is held each year on the third Tuesday of April.

National Death Doula Day

United States / Doulagivers-created end-of-life doula awareness day

Doulagivers identifies April 20 as National Death Doula Day, and observance-registration records trace its creation to Doulagivers in 2019.

National Look Alike Day

United States / informal resemblance and pop-culture observance

National Day Calendar uses National Look Alike Day and National Today uses Look Alike Day; both place the observance on April 20 each year.

National Pineapple Upside-Down Cake Day

Informal food-calendar usage documented by Association of Nutrition & Foodservice Professionals chapter material

Two Association of Nutrition & Foodservice Professionals chapter calendars list National Pineapple Upside-Down Cake Day on 20 April.

Volunteer Recognition Day

Informal volunteer-appreciation observance with current institutional adoption

A New York State Senate event calendar places Volunteer Recognition Day on 20 April 2026; independent observance documentation identifies 20 April as the annual recognition date.

National Banana Day

United States / informal food observance

National Day Calendar defines National Banana Day as the third Wednesday in April and shows the rule across multiple editions.

National Bulldogs Are Beautiful Day

United States / informal bulldog-appreciation observance

Truman State University repeatedly identifies April 21 as National Bulldogs Are Beautiful Day, and major pet-industry calendars also place Bulldogs Are Beautiful Day on April 21.

National Chocolate-Covered Cashews Day

United States / informal food observance

National Day Calendar and National Today independently place the chocolate-covered-cashews observance on April 21 each year; punctuation varies slightly between sources.

National Kindergarten Day

United States / education observance

The U.S. Census Bureau has published National Kindergarten Day material for 21 April, providing federal-agency confirmation of the observance date.

National Pet CBD Day

United States / Innovet-created informal pet-CBD awareness and promotional observance

Innovet announced National Pet CBD Day for April 21 in 2019; archival observance material continues to identify April 21 and Innovet as the creator.

National Tea Day

United Kingdom / Tea Group organizer-led observance

The National Tea Day organizer site publishes the observance on 21 April and lists the 2026 National Tea Day edition for 21 April 2026.

San Jacinto Day

Texas state holiday / recognition day

Texas Government Code §662.003(b), catalogued by the Texas Legislative Reference Library

Tiradentes Day

Brazil national holiday

Brazilian federal government holiday calendar

World Creativity and Innovation Day

United Nations / international observance

A/RES/71/284

World Curlew Day

international curlew conservation awareness observance

Curlew Action

Earth Day

Worldwide / EARTHDAY.ORG campaign

EARTHDAY.ORG’s current 2026 page identifies Earth Day 2026 as Wednesday, 22 April.

International Girls In ICT Day

International Telecommunication Union observance

International Mother Earth Day

United Nations international environmental observance

A/RES/63/278

National Girl Scout Leader’s Day

Girl Scouts / volunteer-recognition observance

Official Girl Scout council volunteer guidance identifies National Girl Scout Leader’s Day on 22 April; Girl Scouts also maintains current Volunteer Appreciation Month resources.

National Jelly Bean Day

United States / informal candy observance with repeated Jelly Belly first-party releases

Jelly Belly Candy Company repeatedly identifies April 22 as National Jelly Bean Day in first-party releases across multiple years.

Stephen Lawrence Day

United Kingdom remembrance and anti-discrimination observance

UK public-sector commemoration; Stephen Lawrence Day is marked annually

Take Our Daughters And Sons To Work Day

United States / participating workplaces

The organizing foundation’s materials identify the event and the fourth-Thursday-in-April recurrence

“In God We Trust” coinage anniversary

United States / anniversary of the 1864 law authorizing the motto on coinage

U.S. Mint and Library of Congress history identify 22 April 1864 as the date Congress authorized the motto on the two-cent coin. That supports an anniversary anchor; it does not establish a…

Canada Book Day

Canada / literary observance

A Canadian House of Commons record identifies April 23 as Canada Book Day, and the City of Brampton currently includes Canada Book Day on April 23 in its Book Week programming.

English Language Day

United Nations / international observance

United Nations language observance

National Cherry Cheesecake Day

Informal food-calendar usage documented by Association of Nutrition & Foodservice Professionals chapter material

Two Association of Nutrition & Foodservice Professionals chapter calendars list National Cherry Cheesecake Day on 23 April.

National English Muffin Day

United States / Thomas’ English Muffins brand observance

Thomas’/Bimbo Bakeries USA press materials identify April 23 as National English Muffin Day across multiple years.

National Lost Dog Awareness Day

United States / Lost Dogs of America campaign

Lost Dogs of America states that it created the first National Lost Dog Awareness Day on April 23, 2014 and celebrates it each year on April 23.

National Sovereignty and Children’s Day

Türkiye / national holiday

Türkiye’s Ministry of National Defence identifies 23 April as National Sovereignty and Children’s Day in its official 2026 commemoration.

National Take a Chance Day

Informal / motivational observance

timeanddate and National Today independently identify April 23 for the informal Take a Chance Day observance.

Spanish Language Day

United Nations / international observance

United Nations language observance

St George’s Day

England / Church of England national-saint observance

The Church of England identifies St George as England’s patron saint and states that St George’s Day is observed on 23 April in its calendar.

Talk Like Shakespeare Day

Chicago-origin Shakespeare cultural observance

Illinois Register proclamation text records that Chicago Shakespeare Theater created Talk Like Shakespeare Day on Shakespeare’s birthday, April 23, and had marked it for several years.

U.S. Army Reserve Birthday

United States / U.S. Army Reserve

The U.S. Army Reserve’s official birthday page identifies 23 April 2026 as its 118th birthday.

World Book and Copyright Day

UNESCO international observance

UNESCO 28 C/Resolution 3.18

World Book Night

United Kingdom / The Reading Agency campaign

The official World Book Night site states that World Book Night is celebrated on 23 April and is run by The Reading Agency.

World Table Tennis Day

Organizer-backed global sport observance

ITTF Foundation

Bob Wills Day

Turkey, Texas Western Swing heritage festival

The official Bob Wills Day organizer and Turkey, Texas material identify the annual event and its last-Saturday-in-April tradition.

Día de Acción por la Tolerancia y el Respeto entre los Pueblos

Argentina — national statutory commemoration

Argentina Law 26.199

International Day of Multilateralism and Diplomacy for Peace

United Nations / international observance

A/RES/73/127

International Sculpture Day

worldwide sculpture and visual-arts observance

International Sculpture Center

National First Ladies Day

United States / National First Ladies Day Commission recognition initiative

The National First Ladies Day Commission says the observance was founded in 2021 and schedules its annual celebration on the last Saturday in April.

National Pet Care for All Day

United States / East Bay SPCA-founded accessible-pet-care awareness day

East Bay SPCA states that it established National Pet Care for All Day on April 24, 2024, its 150th anniversary, to promote accessible pet care.

National Pool Opening Day

Leslie’s-organized seasonal pool-care observance

Leslie’s identifies National Pool Opening Day as the last Saturday in April, positioned around preparing residential pools for the swimming season.

National Rebuilding Day

Rebuilding Together / U.S. volunteer home-repair and community revitalization service

Rebuilding Together says National Rebuilding Month culminates with National Rebuilding Day on the last Saturday of April and identifies April 25 as the 2026 date.

World Day for Animals in Laboratories

International / animal-research advocacy observance

The campaign’s official history identifies 24 April and traces the observance to 1979; NAVS also marks the date in current advocacy material.

World Tai Chi & Qigong Day

global Tai Chi and Qigong education and participation observance

WorldTaiChiDay.org / HPL Institute

World Veterinary Day

Organizer-backed international observance

World Veterinary Association (WVA)

Anzac Day

Australian national day of commemoration

Australian War Memorial

Deaf Parents Day (Mother Father Deaf Day)

International CODA community / Deaf-parent and family heritage observance

CODA International designates the last Sunday in April as Deaf Parents Day, also known as Mother Father Deaf Day; CODA Korea independently describes the same last-Sunday-in-April recurrence.

Freedom Day / 25 April

Portugal national civic commemoration

Government of Portugal; annual 25 April commemorations

International Day for Small Island Developing States

UNESCO international day

Proclaimed by UNESCO in 2025

International Delegate's Day

United Nations / international observance

A/RES/73/286

National DNA Day

NHGRI-led genetics and genomics education / U.S.-based initiative with broad participation

NHGRI says National DNA Day is celebrated annually on April 25 and commemorates the Human Genome Project completion and the discovery of the DNA double helix.

National Hairstylist Appreciation Day

United States / beauty-industry professional appreciation observance

The Professional Beauty Association published its National Hairstylist Appreciation Day recognition on April 25, 2024 and explicitly identified the occasion by name.

National Holiday of the Turkmen Horse

Turkmenistan / national Akhal-Teke horse celebration

Turkmenistan government sources state that the National Holiday of the Turkmen Horse is celebrated annually on the last Sunday of April.

National Hug a Plumber Day

United States / informal plumber-appreciation observance

National Day Calendar and plumbing-industry publication Plumbing & Mechanical independently identify April 25 for National Hug a Plumber Day.

National Pet Parents Day

United States / pet-owner appreciation observance

The Animal Medical Center’s 2026 calendar and National Day Calendar identify National Pet Parents Day as the last Sunday in April.

National Plumbers Day

United States / informal trade-appreciation observance

National Today places National Plumbers Day on April 25, while Days Of The Year independently lists the same date under the alternate name National Hug a Plumber Day.

National Zucchini Bread Day

Informal food-calendar usage documented by Association of Nutrition & Foodservice Professionals chapter material

Two Association of Nutrition & Foodservice Professionals chapter calendars list National Zucchini Bread Day on 25 April.

Parental Alienation Awareness Day

Advocacy / family-awareness observance associated with Parental Alienation Awareness organizations

The UK Charity Commission record for Parental Alienation Awareness describes an annual event held on April 25; New York Senate records also document April 25 awareness recognition.

Red Hat Society Day

Red Hat Society community anniversary/celebration

The Red Hat Society’s official page identifies Red Hat Society Day on 25 April and provides current celebration material.

Sinai Liberation Day

Egypt / national Sinai liberation commemoration

Egypt’s State Information Service states that the anniversary of Sinai Liberation is commemorated on April 25 each year; the 2026 presidential address marked the 44th anniversary.

World Malaria Day

World Health Organization global health observance

WHO observance

World Penguin Day

International / penguin conservation awareness

Penguins International’s World Penguin Day page identifies 25 April as the observance date and frames it around penguin awareness and conservation.

Worldwide Pinhole Photography Day

Worldwide Pinhole Photography Day organizers / international event

The organizer states that Worldwide Pinhole Photography Day is held each year on the last Sunday in April; the 2026 edition was 26 April.

Alien Day

Alien franchise fandom/brand event; date references LV-426 and is not a civic holiday

20th Century Studios’ official Alien page preserves first-party “Alien Day” franchise videos; studio-backed franchise activity has used 26 April as Alien Day.

ASPCA Help a Horse Day

United States / ASPCA equine-welfare campaign

ASPCA materials identify April 26 as its annual Help a Horse Day, used to support equine rescues and adoption awareness.

Hug an Australian Day

United States-origin / creator-defined informal Wellcat observance themed around Australians

The first-party Wellcat Holidays calendar lists Hug an Australian Day on April 26 and identifies the collection as created by Thomas and Ruth Roy.

International Chernobyl Disaster Remembrance Day

United Nations / international observance

A/RES/71/125

National Kids & Pets Day

United States / Colleen Paige-created child-and-pet awareness day

Founder Colleen Paige states that she created National Kids & Pets Day in 2005; her current holiday listing places it on April 26.

National South Dakota Day

United States / National Day Calendar National State Days series — South Dakota

National Day Calendar lists National South Dakota Day on 26 April. The U.S. Senate records South Dakota’s admission/statehood date as 2 November 1889. These are separate facts: the calendar…

World Burlesque Day

International / creator-led burlesque community observance

The official World Burlesque Day site says the initiative launched in 2020 and is celebrated annually on 26 April.

World Intellectual Property Day

WIPO / United Nations / international observance

WIPO observance

APOL1-Mediated Kidney Disease (AMKD) Awareness Day

United States / American Kidney Fund-led kidney-disease awareness campaign

The American Kidney Fund provides an AMKD Awareness Day proclamation template that places the observance on the last Tuesday of each April, and its 2026 campaign materials mark 28 April 202…

Day of Uprising Against the Occupation

Slovenia / national holiday

The Government of Slovenia lists April 27 as Day of Uprising Against the Occupation among the country’s national holidays.

Freedom Day

South African national public holiday and democratic commemoration

South African Government; annual commemoration of the first democratic elections of 27 April 1994

Independence Day

Sierra Leone

Australia’s Department of Foreign Affairs and Trade current National Days protocol register lists Sierra Leone — Independence Day on 27 April. The source verifies the diplomatic national-da…

Independence Day

Togo

The Presidency of the Council of Togo’s 27 April 2026 national address identifies the occasion as the 66th anniversary of the independence of the Togolese Republic.

International Design Day

Organizer-backed international design observance

International Council of Design (ICoD)

Lapu-Lapu Day / Adlaw ni Lapu-Lapu

Philippines special working public holiday nationwide; special nonworking holiday in Lapu-Lapu City

Republic Act No. 11040

National Devil Dog Day

United States / Sean Alexander Sobel-created snack-cake observance

National Day Calendar’s proclamation record identifies Sean Alexander Sobel as the founder of National Devil Dog Day and proclaims April 27 as the annual observance date.

National Little Pampered Dog Day

United States / informal pet-appreciation observance

National Today records April 27 and attributes the first 2016 observance to Lourdes Welhaven and Little Pampered Dog magazine.

National Parvo Awareness Day

United States / Elanco-founded canine parvovirus awareness campaign

Elanco states that it launched the first National Parvo Awareness Day in 2024 and its campaign material places the observance on the fourth Tuesday in April each year.

National Tell a Story Day

United States / informal storytelling observance

Independent observance calendars identify April 27 as the U.S. date of National Tell a Story Day.

Samuel F. B. Morse birthday anniversary

Technology/history anniversary anchored to Samuel F. B. Morse’s birth date

The Smithsonian National Portrait Gallery records Samuel Finley Breese Morse’s birth date as 27 April 1791 and identifies him with the invention of the telegraph.

School Bus Driver Appreciation Day

United States / school-community driver appreciation observance

Current school-government communications and a New York State Assembly member page identify School Bus Driver Appreciation Day as the fourth Tuesday in April; in 2026 that is 28 April.

World Tapir Day

global tapir awareness and conservation observance

World Tapir Day organization

International Guide Dog Day

International guide-dog community / IGDF

The International Guide Dog Federation states that International Guide Dog Day is celebrated on the last Wednesday in April each year and raises awareness of guide-dog services and their ro…

National Blueberry Pie Day

United States / blueberry-industry observance

The U.S. Highbush Blueberry Council explicitly states that National Blueberry Pie Day is celebrated on April 28 each year and repeats the date in other campaign materials.

National Day of Mourning

Canada

The Government of Canada’s 2026 statement marks 28 April as the National Day of Mourning, honoring workers killed, injured or made ill because of work.

National Day of Mourning for persons killed or injured in the workplace

Canada / statutory workers’ remembrance

The Government of Canada states that the Workers Mourning Day Act established April 28 as the official day observed every year, and current 2026 federal material continues to mark the Day o…

Save The Frogs Day

International / SAVE THE FROGS! organizer campaign

SAVE THE FROGS! states that Save The Frogs Day takes place on April 28 every year and documents the 18th annual event on April 28, 2026.

Stop Food Waste Day

International / Compass Group-founded food-waste campaign

Compass Group states that Stop Food Waste Day was founded in 2017 and takes place annually on the last Wednesday of April; in 2026 it falls on April 29.

Workers Memorial Day

International trade-union commemoration

The International Labour Organization states that 28 April has been associated since 1996 with the international trade union movement’s commemoration of victims of occupational accidents an…

World Day for Safety and Health at Work

ILO / United Nations / international observance

ILO observance

International Dance Day

Organizer-backed international observance

International Theatre Institute (ITI) Dance Committee

International Day in Memory of the Victims of Earthquakes

United Nations / international observance

A/RES/79/285

National Shrimp Scampi Day

Informal food-calendar usage documented by Association of Nutrition & Foodservice Professionals chapter material

Two Association of Nutrition & Foodservice Professionals chapter calendars list National Shrimp Scampi Day on 29 April.

National Supply Chain Day®

United States / Supply Chain Now-led industry celebration

Supply Chain Now’s official National Supply Chain Day page states that the celebration takes place every April 29 and identifies Mary Kate Love as founder; current 2026 programming confirms…

World Wish Day

global wish-granting awareness and support observance

Make-A-Wish International

Arbor Day

United States; tree-planting and stewardship observance promoted by the Arbor Day Foundation

The Arbor Day Foundation describes National Arbor Day as the last Friday in April; in 2026 that is 24 April.

International Jazz Day

UNESCO / international observance

UNESCO 36 C/Resolution 39

National Adopt a Shelter Pet Day

United States / animal-adoption awareness usage

ASPCA material identifies April 30 as National Adopt a Shelter Pet Day, and a municipal animal shelter calendar also schedules the 2026 observance on April 30.

National Animal Advocacy Day

United States / animal-protection advocacy observance

The ASPCA explicitly promotes National Animal Advocacy Day on 30 April, and New York legislative resolutions provide additional civic recognition.

National Bubble Tea Day

United States / Kung Fu Tea-created bubble-tea celebration

Kung Fu Tea states that it founded National Bubble Tea Day on April 30, 2018, its eighth birthday.

National Bugs Bunny Day

United States / informal animation and pop-culture observance

National Day Calendar and National Today independently place National Bugs Bunny Day on April 30 as an annually recurring informal observance.

National Hairball Awareness Day

United States / cat-health awareness observance

The Animal Medical Center’s 2026 veterinary-awareness calendar and National Day Calendar both place Hairball Awareness Day on the last Friday in April.

National Military Brats Day

United States / unofficial recognition day for current and former children of military personnel

Military Brats Registry documents naming 30 April each year as the unofficial Military Brats Day and its 2016 effort to add the day to National Day Calendar; a U.S. Army article independent…

National Mr. Potato Head Day

United States toy-history and pop-culture appreciation / Mr. Potato Head advertising anniversary anchor

PBS American Experience documents 30 April 1952 as the launch of the first television advertising campaign for Mr. Potato Head; an independent observance reference uses that 30 April annive…

National Raisin Day

United States / informal food observance documented by the Sun-Maid grower cooperative

Sun-Maid Growers of California explicitly identified April 30 as National Raisin Day in its 2021 first-party campaign announcement.

National Therapy Animal Day

Pet Partners / therapy-animal community

Pet Partners states that it created National Therapy Animal Day and that April 30 is National Therapy Animal Day, recognizing therapy animals and their handlers.

Our Lady of Africa

Catholic / Missionaries of Africa and Missionary Sisters of Our Lady of Africa patronal feast

Missionaries of Africa and the Missionary Sisters of Our Lady of Africa identify April 30 as the feast/patronal feast of Our Lady of Africa.

Undiagnosed Children’s Day

United Kingdom / SWAN UK and Genetic Alliance UK awareness campaign

Genetic Alliance UK states that Undiagnosed Children’s Day is an annual awareness day on the last Friday in April and lists April 24 for 2026.

Walpurgis Night

Swedish spring tradition; practices vary across countries and communities

Visit Sweden identifies Walpurgis Night on 30 April as a major Swedish tradition welcoming spring.

World Women’s Wellness Day

International / informal women’s wellness observance

National Today and Days Of The Year independently place World Women’s Wellness Day on the last Friday in April.