- Ban Ki-moon
- Kofi Annan
- António Guterres
- Jens Stoltenberg
António Guterres of Portugal has served as the ninth Secretary-General of the United Nations since January 2017. His second term runs through 2026. A former Prime Minister of Portugal and UN High Commissioner for Refugees, Guterres prioritized climate action, digital cooperation, and conflict resolution during his tenure, including efforts regarding Ukraine, Gaza, and sustainable development goals.
