United Nations Secretaries-General
| Secretary-General | Nationality | Dates in Office |
|---|---|---|
| Trygve Halvdan Lie | Norwegian | 1946–53 |
| Dag Hammarskjöld | Swedish | 1953–61 |
| U Thant | Burmese | 1962–71 |
| Kurt Waldheim | Austrian | 1972–81 |
| Javier Pérez de Cuéllar | Peruvian | 1982–91 |
| Boutros Boutros-Ghali | Egyptian | 1992–96 |
| Kofi Annan | Ghanaian | 1997–2006 |
| Ban Ki-Moon | South Korean | 2007– |
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