In April 2018, the United Nations General Assembly declared June 3 as International World Bicycle Day.

World Bicycle Day

The Yang di-Pertuan Agong's Birthday

'Second Day of Harvest Festival' observed (Labuan, Sabah)

Gawai Dayak (Sarawak)

Western Australia Day is a public holiday celebrated on the first Monday in June each year to commemorate the founding of the Swan River Colony in 1829. Because of the celebration of Western Australia Day, WA celebrate the Queen's Birthday Holiday in September or October instead.

Western Australia Day (Western Australia)

Children's Day was established in 1949 by the “Democratic Federation of Women” Congress in Paris. China was one of the first countries to support the initiative. In December 1949, by the PRC government decision 1 June was announced International Children's Day.

Children’s Day  - China

Italian National Day commemorates the institutional referendum held by universal suffrage in 1946, in which the Italian people were called to the polls to decide on the form of government.

Republic Day - Italy

Reconciliation Day is a public holiday in the Australian Capital Territory marking the start of National Reconciliation Week. It is held on the first Monday after or on 27 May, the anniversary of the 1967 referendum. It was held for the first time on 28 May 2018.

Reconciliation Day - Australia

Holy Trinity Day, or Triytsya in Ukrainian, is celebrated widely in Ukraine and is a day off work for Ukrainians.   

Orthodox Pentecost holiday

Gawai Dayak Holiday (Sarawak)

Corpus Christi celebrates the Eucharist and is public holiday in some parts of Germany.

Corpus Christi (Many regions)

National Doughnut Day, or National Donut Day - celebrated in the United States, is on the first Friday of June of each year, succeeding the Doughnut event created by The Salvation Army.

National Donut Day

World Environment Day (WED) is celebrated on the 5th of June every year, and is the United Nation's principal vehicle for encouraging awareness and action for the protection of our environment.

World Environment Day

Constitution Day is observed in Denmark on 5 June. The day honors the Danish Constitution, as both the first constitution of 1849 and the current constitution of 1953 were signed on this date of their respective years. It is also widely considered to be a day for celebrating Danish democracy.

Constitution Day - Denmark

Memorial Day  is a federal holiday in the United States for remembering and honoring the military personnel who died while serving in the United States Armed Forces. The holiday is observed on the last Monday of May. Memorial Day was observed on May 30 from 1868 to 1970.

Memorial Day

National Day of Sweden is a national holiday observed in Sweden on 6 June every year. Prior to 1983, the day was celebrated as the Swedish Flag Day. At that time, the day was renamed the Swedish national day by the Riksdag.

Flag Day - Sweden

National Cancer Survivors Day is a secular holiday celebrated on the first Sunday in June primarily in the United States of America. The day is meant to “demonstrate that life after a cancer diagnosis can be a reality”.

National Cancer Survivor Day

New Zealanders celebrate the Queen's Birthday on the first Monday of June each year. New Zealand is a constitutional monarchy with Queen Elizabeth II as the head of state.

Queen's Birthday - New Zealand

World Oceans Day takes place every 8 June. The concept was originally proposed in 1992 by Canada's International Centre for Ocean Development (ICOD) and the Ocean Institute of Canada (OIC) at the Earth Summit – UN Conference on Environment and Development (UNCED) in Rio de Janeiro, Brazil.

World Ocean Day

World Oceans Day

On June 9th of each year, National Strawberry Rhubarb Pie Day is observed.

National Strawberry Rhubarb Pie Day

Portugal Day, officially known as Dia de Camões, de Portugal e das Comunidades Portuguesas, commemorates the death of Luís de Camões on June 10th 1580. It is Portugal's National Day.

Portugal Day

National Making Life Beautiful Day is observed annually on June 11.  It is a day dedicated to encouraging and celebrating men and women who are making life beautiful.

National Making Life Beautiful Day

Independence Day is an annual national holiday in the Philippines observed on June 12, commemorating the independence of the Philippines from Spain.

Independence Day - Philippines

National Loving Day is observed each year on June 12.   National Loving Day is an annual celebration that commemorates the anniversary of the 1967 US Supreme Court decision Loving v Virginia

National Loving Day

Russia Day, celebrated on June 12. On this day, in 1991, Russian parliament formally declared Russian sovereignty from the Soviet Union. The holiday was officially established in 1992. Initially it was named Day of the Adoption of the Declaration of Sovereignty of the Russian Federation.

Russia Day

Each June 13 honors those who would like to cook and be in the kitchen, but it just doesn’t seem to work well for them.  After all, it is National Kitchen Klutzes of America Day.

National Kitchen Klutzes of America Day

The Queen's birthday, also known as the Queen's Official Birthday, is celebrated in many Commonwealth countries around the world. It is a public holiday in countries such as Australia, New Zealand, and Gibraltar, although on different dates.  

Queen's Birthday

The monarch's birthday has been celebrated in the United Kingdom since 1748, during the reign of King George II. The Queen's Official Birthday was originally celebrated on the second Thursday of June, the same day that her father, King George VI, celebrated his Official Birthday during his reign.

Official Birthday of H.M. Queen Elizabeth II - UK

Every year on 14 June, countries around the world celebrate World Blood Donor Day (WBDD). The event, established in 2004, serves to raise awareness of the need for safe blood and blood products, and to thank blood donors for their voluntary, life-saving gifts of blood.

World Blood Donor Day

June 15th is the day we observe National Smile Power Day.  This is a day for everyone to share the power of the smile.

National Smile Power Day

Muharram is the first month of the Islamic calendar and a time of remembrance or mourning.

Muharram/New Year

National Eat Your Vegetables Day is observed annually on June 17.  June is National Fresh Fruit and Vegetables Month, and National Eat Your Vegetables Day is one more opportunity to remind everyone to continue with this part of a healthy diet.

National Eat Your Vegetables Day

The Islamic New Year, also known as Arabic New Year or Hijri New Year, is the day that marks the beginning of a new Hijri year, and is the day on which the year count is incremented.

Islamic New Year (UAE)

The Islamic New Year, also known as Arabic New Year or Hijri New Year, is the day that marks the beginning of a new Hijri year and is the day on which the year count is incremented.

Islamic New Year - Saudi Arabia

Amun Jadid

Islamic New Year - Brunei

Islamic New Year (Egypt)

Islamic New Year (Malaysia)

Islamic New Year (Indonesia)

Icelandic National Day is an annual holiday in Iceland which commemorates the foundation of The Republic of Iceland. This date also marks the end of Iceland's centuries old ties with Denmark

Independence Day - Iceland

National Go Fishing Day is observed annually on June 18th.  This is a day to take time from your daily routine to find a stream, pond, or river, bait your hook, cast your line and catch a fish or two.

National Go Fishing Day

Juneteenth, also known as Juneteenth Independence Day, is an American holiday that commemorates the June 19, 1865, announcement of the abolition of slavery in the U.S. state of Texas, and more generally the emancipation of enslaved African Americans throughout the former Confederate States.

Juneteenth

The Dragon Boat Festival is a traditional holiday originating in China, occurring near the summer solstice. The festival now occurs on the 5th day of the 5th month of the traditional Chinese calendar, which is the source of the festival's alternative name, the Double Fifth Festival.

Dragon Boat Festival

World Productivity Day is an occasion for suppliers of productivity tools, training, and advances to celebrate their contributions and give something back to their users.

World Productivity Day

Father's Day is a celebration honoring fathers and celebrating fatherhood, paternal bonds and the influence of fathers in society. In Catholic countries of Europe, it has been celebrated on March 19 (Saint Joseph's Day) since the Middle Ages.

Father's Day

In the Northern Hemisphere, the June solstice (aka summer solstice) occurs when the Sun reaches its highest and northernmost points in the sky. It marks the start of summer in the northern half of the globe.

First Day of Summer

Positive Media Day has been created to change the perspective and status quo of every-day media consumption. With a passion to disperse the overriding negative media that overshadows the great positive impact people are making on the world every single day.

Positive Media Day

Global Beatles Day is an annual holiday occurring June 25th each year that honours and celebrates the ideals of The Beatles. The date was chosen to commemorate the date that The Beatles participated in the BBC programme “Our World” in 1967, performing All You Need Is Love broadcast internationally.

Global Beatles Day

National Pink Day is observed annually on June 23rd.  This day is set aside for the color pink and all it represents.

National Pink Day

The Grand Duke's Official Birthday, also known as Luxembourgish National Day, is celebrated as the annual national holiday of Luxembourg. It is celebrated on 23 June, although this has never been the actual birthday of any ruler of Luxembourg.

Grand Duke's Official Birthday - Luxembourg

Fairy Day celebrates these incredible mythological creatures that have captured the imagination of people everywhere and their diverse history.

Fairy Day

Saint John the Baptist Day is annually held on June 24 to honor the life of St John, an early Christian saint. It is a public holiday in Catalonia, Spain.

Saint John the Baptist Day (Albacete)

Feast of San Juan (Many regions)

Statehood Day is a holiday to commemorate the country's declaration of independence from Yugoslavia in 1991. Statehood Day is considered to be 25 June since that was the date on which the initial acts regarding independence were passed and Slovenia became independent.

Statehood Day - Slovenia

The food holiday National Chocolate Pudding Day is observed each year on June 26th. Chocolate pudding has been loved by children and adults for many years.

National Chocolate Pudding Day

National Sunglasses Day is a commemorative date held annually on June 27 celebrating the importance of wearing shades to protect the eyes from the sun’s harsh ultraviolet (UV) rays.

National Sunglasses Day

On June 28, we remember fondly the tales of the big blue ox and a mighty lumberjack.  It is National Paul Bunyan Day. Described as a giant and a lumberjack of unusual skill accompanied by his companion Babe The Blue Ox, Paul Bunyan is one of the most famous North American folklore heroes.

Paul Bunyan Day

Constitution Day is an annual public holiday in Poland on May 3.

Constitution Day

National Camera Day is observed each year on June 29th.  This day commemorates photographs, the camera, and their invention.  A camera is an irreplaceable tool used to record and replicate memories, events, and people/places.

National Camera Day

'Constitution Day' observed

Social Media Day was launched by the popular website Mashable back in 2010, and often sees fans of the site going to real life meetups.

Social Media Day

World Asteroid Day is observed globally each year on the anniversary of the Tunguska impact over Siberia, Russian Federation, on June 30, 1908, and to raise public awareness about the asteroid impact hazard.