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–