Qian Tang
People’s Republic of China
2010 – 2018
Nicholas Burnett
United Kingdom of Great Britain and Northern Ireland
2007 –2009
Peter P. Smith
United States of America
2005 – 2006
Aïcha Bah Diallo
Guinea
2001 and 2005 (interim)
John Sagar Daniel
United Kingdom of Great Britain and Northern Ireland
2001 –2004
Jacques Hallak
France
2000 (interim)
Colin Nelson Power
Australia
1989 – 1999
Akihiro Chiba
Japan
1988 – 1989 (interim)
Sema Tanguiane
Union of Soviet Socialist Republics
1975 - 1988
Leo Fernig
South Africa
1974-1975 (interim)
Amadou-Mahtar M’Bow
Senegal
1970 – 1974
Carlos Flexa Ribeiro
Brazil
1967 – 1970
Jean Guiton
France
1966 – 1967 (interim)
Gabriel Betancur-Mejia
Colombia
1963 – 1966
Shannon McCune
United States of America
1961 – 1962
Masunori Hiratsuka
Japan
1960 – 1961
Harold Loper
United States of America
1957 –1960
Herbert Lionel Elvin
United Kingdom of Great Britain and Northern Ireland
1950 – 1956
Jean Piaget
Switzerland
1949 – 1950 (interim)
Clarence Edward Beeby
New Zealand
1948 – 1949
Kuo Yu-Shou
China
1946 –1948