| Last Name | First Name | Year | City | Section/Speaker Type Sort descending |
|---|---|---|---|---|
| Suppantschitsch | R. | 1912 | Cambridge | Philosophy, History, and Didactics |
| Ungerer | A. | 1920 | Strasbourg | Philosophy, History, and Didactics |
| Vailati | G. | 1908 | Rome | Philosophy, History, and Didactics |
| Whitehead | A.N. | 1912 | Cambridge | Philosophy, History, and Didactics |
| Zervos | P. | 1920 | Strasbourg | Philosophy, History, and Didactics |
| Zeuthen | H.G. | 1908 | Rome | Philosophy, History, and Didactics |
| Adams | J. F. | 1966 | Moskva | Plenary |
| Agol | Ian | 2014 | Seoul | Plenary |
| Ahlfors | L.V. | 1978 | Helsinki | Plenary |
| Albert | A. A. | 1950 | Cambridge (USA) | Plenary |
| Aldous | David | 2010 | Hyderabad | Plenary |
| Alexander | J. W. | 1932 | Zurich | Plenary |
| Alexandrov | A. D. | 1958 | Edinburgh | Plenary |
| Alexandrov | P. S. | 1954 | Amsterdam | Plenary |
| Alon | Noga | 2002 | Beijing | Plenary |
| Amoroso | Luigi | 1928 | Bologna | Plenary |
| Arnold | D. | 2002 | Beijing | Plenary |
| Arnold | V. I. | 1974 | Vancouver | Plenary |
| Arnold | V. I. | 1983 | Warszawa | Plenary |
| Arthur | James | 2014 | Seoul | Plenary |
| Artin | M. | 1966 | Moskva | Plenary |
| Avila | Artur | 2010 | Hyderabad | Plenary |
| Babai | László | 1994 | Zurich | Plenary |
| Balasubramanian | R | 2010 | Hyderabad | Plenary |
| Banach | S. | 1936 | Oslo | Plenary |