| Last Name Sort descending | First Name | Year | City | Section/Speaker Type |
|---|---|---|---|---|
| Tate | John | 1970 | Nice | Plenary |
| Taubes | Clifford H. | 1994 | Zurich | Plenary |
| Taufflieb | 1920 | Strasbourg | Plenary | |
| Taylor | Richard | 2002 | Beijing | Plenary |
| Temple | G. | 1958 | Edinburgh | Plenary |
| Thom | R. | 1958 | Edinburgh | Plenary/Prize winner |
| Thom | R. | 1983 | Warszawa | Plenary |
| Thompson | J. G. | 1966 | Moskva | Plenary |
| Thurston | W. P. | 1978 | Helsinki | Plenary |
| Tian | Gang | 2002 | Beijing | Plenary |
| Titchmarsh | E. C. | 1954 | Amsterdam | Plenary |
| Tits | J. | 1962 | Stockholm | Plenary |
| Tits | J. | 1974 | Vancouver | Plenary |
| Tonelli | Leonida | 1928 | Bologna | Plenary |
| Tschebotaröw | N. | 1932 | Zurich | Plenary |
| Uhlenbeck | G. E. | 1958 | Edinburgh | Plenary |
| Uhlenbeck | Karen | 1990 | Kyoto | Plenary |
| Ungerer | A. | 1920 | Strasbourg | Plenary |
| Vafa | Cumrun | 1998 | Berlin | Plenary |
| Valiron | Georges | 1932 | Zurich | Plenary |
| Vallée-Poussin | Cl. | 1920 | Strasbourg | Plenary |
| van Dantzig | D. | 1954 | Amsterdam | Plenary |
| van den Bergh | Michel | 2022 | Virtual | Plenary Lecture |
| Varadhan | S. R. S. | 1994 | Zurich | Plenary |
| Varchenko | Alexandre | 1990 | Kyoto | Plenary |