International Day of Remembrance of and Tribute to the Victims of Terrorism

The United Nations International Day of Remembrance of and Tribute to the Victims of Terrorism falls on August 21. It is a solemn UN date for victims and families, not a U.S. federal holiday.

United NationsAugustremembranceterrorismvictims

International Day of Remembrance of and Tribute to the Victims of Terrorism - The United Nations International Day of Remembrance of and Tribute to the Victims of Terrorism falls on August 21. It is a solemn UN date for victims and families, not a U.S. federal holiday.

About International Day of Remembrance of and Tribute to the Victims of Terrorism

History & origins

The UN General Assembly created this international day to honor victims of terrorism and to underline assistance for survivors and families. August 21 is the UN calendar date. It is not Patriot Day (September 11 in the U.S.).

Why it matters

The observance keeps victims — not perpetrators — at the center of public memory.

How to celebrate

Read a UN briefing on victim assistance, support a reputable survivors’ organization, and keep the day free of graphic spectacle.

Facts

The UN General Assembly established the day
August 21 is the UN date
It is distinct from national memorial dates such as September 11 in the United States

Upcoming dates

Friday, August 21, 2026
Saturday, August 21, 2027
Monday, August 21, 2028
Tuesday, August 21, 2029
Wednesday, August 21, 2030

Frequently asked questions

When is International Day of Remembrance of and Tribute to the Victims of Terrorism in 2026?

International Day of Remembrance of and Tribute to the Victims of Terrorism in 2026 falls on Friday, August 21, 2026.

Who created it?

The United Nations General Assembly.

Is it the same as Patriot Day?

No. Patriot Day is a U.S. date on September 11.

How should it be marked?

With remembrance and support for victims, not entertainment.

Help others discover this day by sharing it.

Explore more

Full calendar More International days All categories Home

Related days

International Women's Day

Celebrate the achievements and contributions of women worldwide on International Women's Day! This global day recognizes the social, economic, cultural, and political achievements of women while calling for gender equality. Join the movement to create a more inclusive world where women and girls can reach their full potential.

World Environment Day

Protect our planet and promote environmental awareness on World Environment Day! This global celebration encourages individuals and communities to take action for environmental protection and sustainability. Learn about environmental challenges, discover eco-friendly practices, and join millions worldwide in making a positive impact on our Earth's future.

International Day for the Remembrance of the Slave Trade and its Abolition

Each August 23, UNESCO marks the International Day for the Remembrance of the Slave Trade and its Abolition. The date recalls the night of August 22–23, 1791, when an uprising in Saint-Domingue helped set Haiti’s revolution in motion.

International Day against Nuclear Tests

The International Day against Nuclear Tests on August 29 is a United Nations date. It commemorates the 1991 closure of the Semipalatinsk test site in Kazakhstan.

World Photography Day

Capture the moment on World Photography Day! This global celebration honors the art, craft, science, and history of photography. From professional photographers to smartphone snappers, everyone celebrates the power of images to tell stories and preserve memories.