United Nations General Assembly

SEPTEMBER 9 – 28, 2025

The 80th session of the UN General Assembly (UNGA) opens on September 9, 2025. Two weeks later, High-Level General Debate kicks off Tuesday, September 23, 2025.

As the United Nations marks its 80th year, global leaders will convene in New York City to build consensus and confront complex global challenges. Eight decades after its establishment, the UN remains the only place on Earth where countries can gather to work through their differences and find common ground — shaping our shared future.

Explore this page for updates on events and expert commentary on UNGA 80.

From UN Foundation

Frequently Asked Questions About UNGA

Each September, world leaders convene at UN Headquarters in New York City for the UN General Assembly. For decades, UNGA has remained an essential forum to address the world’s most pressing challenges. But when is UNGA? What does the General Assembly do – and how can you get involved?

EXPLORE FAQs

Featured Events

UNITED NATIONS GENERAL ASSEMBLY HIGH-LEVEL GENERAL DEBATE

September 23, 2025
At UNGA 80, world leaders will explore solutions to global challenges to advance peace, security, and sustainable development, under the theme, “Better Together: 80 years and more for peace, development, and human rights.”

Learn More

Special High-level event on climate action

September 24, 2025
Ahead of COP 30 in Brazil, The UN Secretary-General will convene a Climate Summit to serve as a platform for world leaders to present their new national climate action plans and seize the benefits of the new clean energy era.

Learn More

Fourth High-level Meeting on the prevention and control of NCDs and the promotion of mental health and wellbeing

September 25, 2025
This event will mark an opportunity to adopt a new political declaration on Noncommunicable Diseases (NCDs) and mental health conditions toward 2030 and beyond.

Learn More