Who is and has been Secretary-General of the United Nations?

António Guterres is the current Secretary-General of the United Nations.

 He is the ninth Secretary-General, his term began 1 January 2017. 

The list of Secretaries-General, with the date of their term in office, is:

1. Trygve Lie, from Norway, 1946-1952

2. Dag Hammarskjöld, from Sweden, 1953-1961

3. U Thant, from Burma (now Myanmar), 1961-1971

4. Kurt Waldheim, from Austria, 1972-1981

5. Javier Perez de Cuellar, from Peru, 1982-1991

6. Boutros Boutros-Ghali, from Egypt, 1992-1996

7. Kofi A. Annan, from Ghana, 1997-2006

8. Ban Ki-Moon, from Republic of Korea, 2007-2016

9. António Guterres, from Portugal, 2017-Present

Gladwyn Jebb, from the United Kingdom, served as Acting Secretary-General from 24 October 1945 - 1 February 1946.

The Research Guide on the Secretariat provides links to more information about the appointments and additional resources held by the Library for each Secretary-General.