| Last Name | First Name Sort descending | Year | City | Section/Speaker Type |
|---|---|---|---|---|
| Montalbán | Antonio | 2014 | Seoul | Logic and Foundations |
| Ros | Antonio | 2006 | Madrid | Geometry |
| Wassermann | Antony J. | 1994 | Zurich | Operator Algebras & Functional Analysis |
| Kupiainen | Antti | 1990 | Kyoto | Mathematical Physics |
| Kupiainen | Antti | 2010 | Hyderabad | Mathematical Physics |
| Asok | Aravind | 2022 | Virtual | Algebraic and Complex Geometry |
| Bayer | Arend | 2022 | Virtual | Algebraic and Complex Geometry |
| Van der Schaft | Arjan | 2006 | Madrid | Control Theory and Optimization |
| Nemivroski | Arkadi | 2006 | Madrid | Plenary |
| Borel | Armand | 1974 | Vancouver | Algebraic Groups & Discrete Subgroups |
| Cheritat | Arnaud | 2010 | Hyderabad | Dynamical Systems and Ordinary Differential Equations |
| Kuijlaars | Arno | 2010 | Hyderabad | Analysis |
| Reymond | Arnold | 1932 | Zurich | Philosophy and History |
| Martin | Artemas | 1900 | Paris | Number Theory and Algebra |
| Korn | Arthur | 1932 | Zurich | Mechanics and Mathematical Physics |
| Linder | Arthur | 1936 | Oslo | Probability Calculus, Mathematical Statistics, Insurance Mathematics, and Econometry |
| Bartels | Arthur | 2018 | Rio de Janeiro | Topology |
| Copeland | Arthur H. | 1936 | Oslo | Probability Calculus, Mathematical Statistics, Insurance Mathematics, and Econometry |
| Conway | Arthur W. | 1932 | Zurich | Mechanics and Mathematical Physics |
| Avila | Artur | 2010 | Hyderabad | Plenary |
| Avila | Artur | 2014 | Seoul | Plenary/Prize winner |
| Bose | Arup | 2010 | Hyderabad | Probability and Statistics |
| Dvoretzky | Aryeh | 1970 | Nice | Analysis |
| Shapira | Asaf | 2022 | Virtual | Combinatorics |
| Naor | Assaf | 2010 | Hyderabad | Functional Analysis and Applications |