The Union President is responsible for carrying out the decisions of the Board and ensuring the correct functioning of the organisation.
Here are the Past Presidents:
- 1920 Prof Robert Philip
- 1921 Dr E Dewez
- 1922 Dr F Morin
- 1924 Dr Theobald Smith
- 1926 Dr F A Piomarta
- 1928 Prof Théodor Frôlicli
- 1930 Prof Willem Nolen
- 1932 Dr Eugenjusz Piestrzynski
- 1934 Dr Loro de Carvaiho
- 1937 Prof K A Jensen
- 1950 Prof Manoel de Abreu
- 1952 Prof A Crespo Alvarez
- 1954 Dr P V Benjamin
- 1957 Prof Ismail Tewfik Sagllam
- 1959 Dr G J Wherrett
- 1961 Prof Attilio Omodei Zorini
- 1963 Prof Erich Sebrôder
- 1965 Prof Jan K Kraan
- 1967 Dr James E Perkins
- 1969 Prof V Chebanov
- 1971 Dr T Shimao
- 1973 Mr Miguel Jimenez
- 1975 Prof A Gyselen
- 1978 Prof H Rodriguez Casteils
- 1982 Dr N C Sen Gupta
- 1986 Mr James Swomley
- 1990 Prof Rudoif Ferlinz
- 1994 Prof S Supcharoen
- 1998 Dr Kjell Bjartveit
- 2001 Prof Anne Fanning
- 2004 Dr Asma El Sony
- 2008 Dr S Bertel Squire
- 2011 Dr E Jane Carter
- 2016 Dr Jeremiah Chakaya Muhwa