| Last Name Sort descending | First Name | Year | City | Section/Speaker Type |
|---|---|---|---|---|
| Ryden | T. | 2002 | Beijing | Prob & Stats |
| Ryshkov | S. S. | 1974 | Vancouver | Geometry |
| Sacks | Gerald E. | 1970 | Nice | Mathematical Logic |
| Safarevic | I. R. | 1962 | Stockholm | Plenary |
| Safonov | Mikhail V. | 1998 | Berlin | Part. Diff. Equations |
| Safra | Muli | 2022 | Virtual | Mathematics of Computer Science |
| Sagastizábal | Claudia | 2018 | Rio de Janeiro | Control Theory and Optimization |
| Sagastume | A. | 1928 | Bologna | Geometry |
| Sahai | Amit | 2022 | Virtual | Special Sectional Lecture |
| Saint-Raymond | Laure | 2014 | Seoul | Partial Differential Equations |
| Saint-Raymond | Laure | 2022 | Virtual | Plenary Lecture |
| Saito | Kyoji | 1990 | Kyoto | Real & Complex Analysis |
| Saito | Morihiko | 1990 | Kyoto | Algebraic Geometry |
| Saito | Shuji | 2010 | Hyderabad | Algebraic Geometry |
| Saito | Takeshi | 2010 | Hyderabad | Number Theory |
| Sakai | S. | 1978 | Helsinki | Op Alg & Grp Rep |
| Sakellaridis | Yiannis | 2022 | Virtual | Lie Theory and Generalizations |
| Sakellarion | N. | 1928 | Bologna | Analysis |
| Sakellariou | N. | 1928 | Bologna | Elementary Mathematics, Didactical Questions, Mathematical Logic |
| Sakellariou | Nilos | 1920 | Strasbourg | Arithmetic, Algebra, Analysis |
| Sakellariou | Nilos | 1936 | Oslo | Probability Calculus, Mathematical Statistics, Insurance Mathematics, and Econometry |
| Saks | S. | 1928 | Bologna | Analysis |
| Salamon | Dietmar | 1994 | Zurich | Geometry |
| Saloff-Coste | Laurent | 2022 | Virtual | Probability, Analysis |
| Salomão | Pedro | 2018 | Rio de Janeiro | Geometry |