Who has been Secretary General of the United Nations?

There have been 8 Secretary Generals of the United Nations.

From the 1st of February, 1946 to the 10th of November, 1952, the first Secretary General was Trygve Lie, of Norway.

From the 10th of April, 1953 to the 18th of September, 1961, the second Secretary General was Dag Hammarskjöld, of Sweden.

From the 30th of November, 1961 to the 31st of December, 1971 the third Secretary General was U Thant, of Burma.

From the 1st of January, 1972 to the 31st of December, 1981, the fourth Secretary General was Kurt Waldheim, of Austria.

From the 1st of January, 1982 to the 31st of December, 1991, the fifth Secretary General was Javier Pérez de Cuéllar, of Peru.

From the 1st of January, 1992, to the 31st of December, 1996, the sixth Secretary General was Boutros Boutros-Ghali, of Egypt.

From the 1st of January, 1997, to the 31st of December, 2006, the seventh Secretary General was Kofi Annan, of Ghana.

The current Secretary General, since the 1st of January, 2007, has been Ban Ki-Moon, of South Korea.

There was also an Acting Secretary General from the 24th of October, 1945 to the 1st of February, 1946 - Gladwyn Jebb of the United Kingdom.