| Last Name Sort descending | First Name | Year | City | Section/Speaker Type |
|---|---|---|---|---|
| Szokefalvi-Nagy | B. | 1962 | Stockholm | Analysis |
| Szpilrajn | Edward | 1936 | Oslo | Geometry and Topology |
| Tachikawa | Yuji | 2018 | Rio de Janeiro | Invited (lecture was not given) |
| Täcklind | Sven | 1936 | Oslo | Analysis |
| Tadmor | Eitan | 2002 | Beijing | Numerical Analysis & Scientific Computing |
| Taimanov | Iskander | 2022 | Virtual | Geometry, Dynamics |
| Takagi | T. | 1920 | Strasbourg | Arithmetic, Algebra, Analysis |
| Takasaki | Kanehisa | 1990 | Kyoto | Partial Differential Equations |
| Takens | F. | 1986 | Berkeley | Ordinary Differential Equations and Dynamic Systems |
| Takesaki | Masamichi | 1970 | Nice | Analysis |
| Takhtajan | L. A. | 1983 | Warszawa | Mathematical physics & mechanics |
| Talagrand | Michel | 1990 | Kyoto | Operator Algebras & Functional Analysis |
| Talagrand | Michel | 1998 | Berlin | Plenary |
| Talay | Denis | 2014 | Seoul | Numerical Analysis and Scientific Computing |
| Tamarkin | Dmitry | 2002 | Beijing | Algebra |
| Tamarkin | J. D. | 1932 | Zurich | Analysis |
| Tamarkine | J. | 1924 | Toronto | Algebra, Theory of Numbers, Analysis |
| Tambs Lyche | R. | 1928 | Bologna | Analysis |
| Tambs Lyche | R. | 1936 | Oslo | Analysis |
| Tanaka | Hiroshi | 1994 | Zurich | Prob & Stats |
| Tang | Tao | 2018 | Rio de Janeiro | Numerical Analysis and Scientific Computing |
| Tannery | P. | 1904 | Heidelberg | History of Mathematics |
| Tao | Terence | 2006 | Madrid | Plenary/Prize winner |
| Tarantello | Gabriella | 2022 | Virtual | Partial Differential Equations |
| Tardos | Éva | 1990 | Kyoto | Combinatorics |