The World Day for Cultural Diversity for Dialogue and Development is a United Nations–sanctioned international holiday for the promotion of diversity issues. It is currently held on May 21.

The International Day for Biological Diversity (or World Biodiversity Day) is a United Nations–sanctioned international day for the promotion of biodiversity issues. It is currently held on May 22. The International Day for Biological Diversity falls within the scope of the UN Post-2015 Development Agenda's Sustainable Development Goals.

Obstetric fistula is one of the most serious and tragic injuries that can occur during childbirth. It is a hole between the birth canal and the bladder or rectum caused by prolonged, obstructed labour without treatment. The condition typically leaves women incontinent, and as a result they are often shunned by their communities. Sufferers often […]

The "International Day of United Nations Peacekeepers", May 29, is "a day to pay tribute to all the men and women who have served and continue to serve in United Nations peacekeeping operations for their high level of professionalism, dedication, and courage and to honor the memory of those who have lost their lives in the cause […]

The Global Day of Parents is observed on the 1st of June every year. The Day was proclaimed by the UN General Assembly in 2012 with resolution A/RES/66/292 and honours parents throughout the world.

In April 2018, the United Nations General Assembly declared 3 June as International World Bicycle Day. Leszek Sibilski led a campaign to promote a UN Resolution for World Bicycle Day, eventually gaining the support of Turkmenistan and 56 other countries.

The International Day of Innocent Children Victims of Aggression is a United Nations observance each 4 June. It was established on 19 August 1982. Originally focused on victims of the 1982 Lebanon War, its purpose expanded to "acknowledge the pain suffered by children throughout the world who are the victims of physical, mental and emotional abuse. This day […]

World Environment Day (WED) occurs on 5 June every year, and is the United Nations' principal vehicle for encouraging worldwide awareness and action for the protection of our environment. First held in 1974, it has been a flagship campaign for raising awareness on emerging environmental issues from marine pollution, human overpopulation, and global warming, to sustainable consumption and wildlife crime.

The World Day Against Child Labour, which is held every year on June 12, is intended to foster the worldwide movement against child labour in any of its forms.