| Last Name Sort descending | First Name | Year | City | Section/Speaker Type |
|---|---|---|---|---|
| Simon | Barry | 1974 | Vancouver | Mathematical Physics & Mechanics |
| Simon | L. | 1983 | Warszawa | Geometry |
| Simon | M. | 1904 | Heidelberg | History of Mathematics |
| Simon | M. | 1904 | Heidelberg | Pedagogy |
| Simon | Max | 1908 | Rome | Philosophy, History, and Didactics |
| Simpson | Carlos T. | 1990 | Kyoto | Algebraic Geometry |
| Sims | C. C. | 1978 | Helsinki | Discrete Math & math Aspects of Computer Science |
| Sinai | J. G. | 1970 | Nice | Analysis |
| Sinai | Ja. G. | 1962 | Stockholm | Probability & Statistics |
| Sinai | Ya. G. | 1978 | Helsinki | Mathematical Physics & Mechanics |
| Sinai | Yakov G. | 1990 | Kyoto | Plenary |
| Singer | Amit | 2018 | Rio de Janeiro | Mathematics in Science and Technology |
| Singer | I. M. | 1974 | Vancouver | Plenary |
| Singh | A. N. | 1936 | Oslo | Analysis |
| Singh | A. N. | 1936 | Oslo | Logic, Philosophy, and History |
| Sinzov | D. | 1912 | Cambridge | Geometry |
| Sion | Maurice | 1970 | Nice | Analysis |
| Sisam | C. H. | 1928 | Bologna | Geometry |
| Sittignani | G. M. | 1928 | Bologna | Elementary Mathematics, Didactical Questions, Mathematical Logic |
| Sittignani | G. M. | 1928 | Bologna | Philosophy, History of Mathematics |
| Siu | Y. -T. | 1978 | Helsinki | Complex Analysis |
| Siu | Yum-Tong | 1983 | Warszawa | Plenary |
| Siu | Yum-Tong | 2002 | Beijing | Plenary |
| Sjostrand | J. | 1978 | Helsinki | Part. Diff. Equations |
| Skandalis | George | 1990 | Kyoto | Operator Algebras & Functional Analysis |