| Last Name Sort descending | First Name | Year | City | Section/Speaker Type | 
|---|---|---|---|---|
| Seress | Akos | 2006 | Madrid | Algebra | 
| Serfaty | Sylvia | 2006 | Madrid | Partial Differential Equations | 
| Serfaty | Sylvia | 2018 | Rio de Janeiro | Plenary | 
| Serganova | Vera | 1998 | Berlin | Lie Groups | 
| Serganova | Vera | 2014 | Seoul | Plenary | 
| Sergescu | P. | 1932 | Zurich | Algebra and Number Theory | 
| Series | C. | 1986 | Berkeley | Ordinary Differential Equations and Dynamic Systems | 
| Serre | J. P. | 1954 | Amsterdam | Geometry & Topology/Prize winner | 
| Serre | J. P. | 1962 | Stockholm | Plenary | 
| Serrin | J. B. | 1983 | Warszawa | History & Education | 
| Serrin | James | 1970 | Nice | Analysis | 
| Servais | C. | 1924 | Toronto | Geometry | 
| Seshadri | C. S. | 1970 | Nice | Algebra | 
| Sesum | Natasa | 2014 | Seoul | Geometry | 
| Sethian | J. A. | 2002 | Beijing | Numerical Analysis & Scientific Computing | 
| Severi | F. | 1908 | Rome | Geometry | 
| Severi | F. | 1924 | Toronto | Plenary | 
| Severi | F. | 1928 | Bologna | Geometry | 
| Severi | F. | 1932 | Zurich | Plenary | 
| Severi | Francesco | 1932 | Zurich | Geometry | 
| Severini | C. | 1908 | Rome | Arithmetic, Algebra, Analysis | 
| Seymour | P. D. | 1986 | Berkeley | Discrete Mathematics & Combinatorics | 
| Seymour | Paul | 1994 | Zurich | Plenary | 
| Sfard | Anna | 2022 | Virtual | Mathematical Education and Popularization of Mathematics | 
| Shafarevitch | I. R. | 1970 | Nice | Algebra |