| Int Day of Commemoration in Memory of the Victims of the Holocaust | Wednesday, January 27 2021 |
| World Cancer Day | Thursday, February 04 2021 |
| Int Day of Zero Tolerance to Female Genital Mutilation | Saturday, February 06 2021 |
| Int Day of Women and Girls in Science | Thursday, February 11 2021 |
| World Radio Day | Saturday, February 13 2021 |
| World Day of Social Justice | Saturday, February 20 2021 |
| Int Mother Language Day | Sunday, February 21 2021 |
| Zero Discrimination Day | Monday, March 01 2021 |
| World Wildlife Day | Wednesday, March 03 2021 |
| Int Womens Day | Monday, March 08 2021 |
| Int Day of Happiness | Saturday, March 20 2021 |
| French Language Day | Saturday, March 20 2021 |
| Int Day for Elimination of Racial Discrimination | Sunday, March 21 2021 |
| World Poetry Day | Sunday, March 21 2021 |
| Int Day of Nowruz | Sunday, March 21 2021 |
| World Down Syndrome Day | Sunday, March 21 2021 |
| Int Day of Forests | Sunday, March 21 2021 |
| World Water Day | Monday, March 22 2021 |
| World Meteorological Day | Tuesday, March 23 2021 |
| World Tuberculosis Day | Wednesday, March 24 2021 |
| Int Day for the Right to the Truth concerning Gross Human Rights Violations and for the Dignity of Victims | Wednesday, March 24 2021 |
| Int Day of Remembrance of the Victims of Slavery and the Transatlantic Slave Trade | Thursday, March 25 2021 |
| Int Day of Solidarity with Detained and Missing Staff Members | Thursday, March 25 2021 |
| World Autism Awareness Day | Friday, April 02 2021 |
| Int Day for Mine Awareness and Assistance in Mine Action | Sunday, April 04 2021 |
| Int Day of Sport for Development and Peace | Tuesday, April 06 2021 |
| Int Day of Reflection on the Genocide in Rwanda | Wednesday, April 07 2021 |
| World Health Day | Wednesday, April 07 2021 |
| Int Day of Human Space Flight | Monday, April 12 2021 |
| Chinese Language Day | Tuesday, April 20 2021 |
| World Creativity and Innovation Day | Wednesday, April 21 2021 |
| Int Mother Earth Day | Thursday, April 22 2021 |
| World Book and Copyright Day | Friday, April 23 2021 |
| English Language Day | Friday, April 23 2021 |
| Spanish Language Day | Friday, April 23 2021 |
| World Malaria Day | Sunday, April 25 2021 |
| Int Chernobyl Disaster Remembrance Day | Monday, April 26 2021 |
| World Intellectual Property Day | Monday, April 26 2021 |
| World Day for Safety and Health at Work | Wednesday, April 28 2021 |
| Int Jazz Day | Friday, April 30 2021 |
| Vesak the Day of the Full Moon | Friday, April 30 2021 |
| World Tuna Day | Sunday, May 02 2021 |
| World Press Freedom Day | Monday, May 03 2021 |
| World Migratory Bird Day May | Saturday, May 08 2021 |
| Time of Remembrance and Reconciliation for Those Who Lost Their Lives During the Second World War | Saturday, May 08 2021 |
| Time of Remembrance and Reconciliation for Those Who Lost Their Lives During the Second World War | Sunday, May 09 2021 |
| Int Day of Families | Saturday, May 15 2021 |
| Int Day of Living Together in Peace | Sunday, May 16 2021 |
| Int Day of Light | Sunday, May 16 2021 |
| World Telecommunication and Information Society Day | Monday, May 17 2021 |
| World Bee Day | Thursday, May 20 2021 |
| World Day for Cultural Diversity for Dialogue and Development | Friday, May 21 2021 |
| Int Day for Biological Diversity | Saturday, May 22 2021 |
| Int Day to End Obstetric Fistula | Sunday, May 23 2021 |
| Int Day of UN Peacekeepers | Saturday, May 29 2021 |
| World No Tobacco Day | Monday, May 31 2021 |
| Global Day of Parents | Tuesday, June 01 2021 |
| World Bicycle Day | Thursday, June 03 2021 |
| Int Day of Innocent Children Victims of Aggression | Friday, June 04 2021 |
| World Environment Day | Saturday, June 05 2021 |
| Int Day for the Fight against Illegal Unreported Unregulated Fishing | Saturday, June 05 2021 |
| Russian Language Day | Sunday, June 06 2021 |
| World Oceans Day | Tuesday, June 08 2021 |
| World Day Against Child Labour | Saturday, June 12 2021 |
| Int Albinism Awareness Day | Sunday, June 13 2021 |
| World Blood Donor Day | Monday, June 14 2021 |
| World Elder Abuse Awareness Day | Tuesday, June 15 2021 |
| Int Day of Family Remittances | Wednesday, June 16 2021 |
| World Day to Combat Desertification and Drought | Thursday, June 17 2021 |
| Sustainable Gastronomy Day | Friday, June 18 2021 |
| Int Day for the Elimination of Sexual Violence in Conflict | Saturday, June 19 2021 |
| World Refugee Day | Sunday, June 20 2021 |
| Int Day of Yoga | Monday, June 21 2021 |
| United Nations Public Service Day | Wednesday, June 23 2021 |
| Int Widows Day | Wednesday, June 23 2021 |
| Day of the Seafarer | Friday, June 25 2021 |
| Int Day against Drug Abuse and Illicit Trafficking | Saturday, June 26 2021 |
| United Nations Int Day in Support of Victims of Torture | Saturday, June 26 2021 |
| Micro Small Med sized Enterprises Day | Sunday, June 27 2021 |
| Int Day of the Tropics | Tuesday, June 29 2021 |
| Int Asteroid Day | Wednesday, June 30 2021 |
| Int Day of Parliamentarism | Wednesday, June 30 2021 |
| Int Day of Cooperatives | Saturday, July 03 2021 |
| World Population Day | Sunday, July 11 2021 |
| World Youth Skills Day | Thursday, July 15 2021 |
| Nelson Mandela Int Day | Sunday, July 18 2021 |
| World Hepatitis Day | Wednesday, July 28 2021 |
| Int Day of Friendship | Friday, July 30 2021 |
| World Day against Trafficking in Persons | Friday, July 30 2021 |
| Int Day of the Worlds Indigenous Peoples | Monday, August 09 2021 |
| Int Youth Day | Thursday, August 12 2021 |
| World Humanitarian Day | Thursday, August 19 2021 |
| Int Day of Remembrance and Tribute to the Victims of Terrorism | Saturday, August 21 2021 |
| Int Day for the Remembrance of the Slave Trade and Its Abolition | Monday, August 23 2021 |
| Int Day against Nuclear Tests | Sunday, August 29 2021 |
| Int Day of the Victims of Enforced Disappearances | Monday, August 30 2021 |
| Int Day of Charity | Sunday, September 05 2021 |
| Int Literacy Day | Wednesday, September 08 2021 |
| World Suicide Prevention Day | Friday, September 10 2021 |
| United Nations Day for South South Cooperation | Sunday, September 12 2021 |
| Int Day of Democracy | Wednesday, September 15 2021 |
| Int Day for the Preservation of the Ozone Layer | Thursday, September 16 2021 |
| Int Day of Peace | Tuesday, September 21 2021 |
| Int Day of Sign Languages | Thursday, September 23 2021 |
| Int Day for the Elimination of Nuclear Weapons | Sunday, September 26 2021 |
| World Tourism Day | Monday, September 27 2021 |
| Int Day for Universal Access to Information | Tuesday, September 28 2021 |
| World Rabies Day | Tuesday, September 28 2021 |
| World Maritime Day | Thursday, September 30 2021 |
| Int Translation Day | Thursday, September 30 2021 |
| Int Day of Older Persons | Friday, October 01 2021 |
| Int Day of Non Violence | Saturday, October 02 2021 |
| World Habitat Day | Monday, October 04 2021 |
| World Teachers Day | Tuesday, October 05 2021 |
| World Migratory Bird Day October | Saturday, October 09 2021 |
| World Post Day | Saturday, October 09 2021 |
| World Mental Health Day | Sunday, October 10 2021 |
| Int Day of the Girl Child | Monday, October 11 2021 |
| Int Day for Disaster Reduction | Wednesday, October 13 2021 |
| Int Day of Rural Women | Friday, October 15 2021 |
| World Food Day | Saturday, October 16 2021 |
| Int Day for the Eradication of Poverty | Sunday, October 17 2021 |
| United Nations Day | Sunday, October 24 2021 |
| World Development Information Day | Sunday, October 24 2021 |
| World Day for Audiovisual Heritage | Wednesday, October 27 2021 |
| World Cities Day | Sunday, October 31 2021 |
| Int Day to End Impunity for Crimes against Journalists | Tuesday, November 02 2021 |
| World Tsunami Awareness Day | Friday, November 05 2021 |
| Int Day for Preventing the Exploitation of the Environment in War and Armed Conflict | Saturday, November 06 2021 |
| World Science Day for Peace and Development | Wednesday, November 10 2021 |
| World Diabetes Day | Sunday, November 14 2021 |
| Int Day for Tolerance | Tuesday, November 16 2021 |
| World Philosophy Day | Thursday, November 18 2021 |
| World Toilet Day | Friday, November 19 2021 |
| Africa Industrialization Day | Saturday, November 20 2021 |
| Universal Childrens Day | Saturday, November 20 2021 |
| World Day of Remembrance for Road Traffic Victims | Sunday, November 21 2021 |
| World Television Day | Sunday, November 21 2021 |
| Int Day for the Elimination of Violence against Women | Thursday, November 25 2021 |
| Int Day of Solidarity with the Palestinian People | Monday, November 29 2021 |
| Day of Remembrance for all Victims of Chemical Warfare | Tuesday, November 30 2021 |
| World AIDS Day | Wednesday, December 01 2021 |
| Int Day for the Abolition of Slavery | Thursday, December 02 2021 |
| Int Day of Persons with Disabilities | Friday, December 03 2021 |
| Int Volunteer Day for Economic and Social Development | Sunday, December 05 2021 |
| World Soil Day | Sunday, December 05 2021 |
| Int Civil Aviation Day | Tuesday, December 07 2021 |
| Int Day of Commemoration Dignity of the Victims of the Crime of Genocide and of the Prevention of this Crime | Thursday, December 09 2021 |
| Int Anti Corruption Day | Thursday, December 09 2021 |
| Human Rights Day | Friday, December 10 2021 |
| Int Mountain Day | Saturday, December 11 2021 |
| Int Day of Neutrality | Sunday, December 12 2021 |
| Int Universal Health Coverage Day | Sunday, December 12 2021 |
| Int Migrants Day | Saturday, December 18 2021 |
| Arabic Language Day | Saturday, December 18 2021 |
| Int Human Solidarity Day | Monday, December 20 2021 |