| Last Name | First Name | Year Sort descending | City | Section/Speaker Type |
|---|---|---|---|---|
| Simpson | Carlos T. | 1990 | Kyoto | Algebraic Geometry |
| Sinai | Yakov G. | 1990 | Kyoto | Plenary |
| Skandalis | George | 1990 | Kyoto | Operator Algebras & Functional Analysis |
| Slaman | Theodore A. | 1990 | Kyoto | Mathematical Logic & Foundations |
| Steel | John R. | 1990 | Kyoto | Mathematical Logic & Foundations |
| Steenbrink | Joseph H. M. | 1990 | Kyoto | Geometry |
| Struwe | Michael | 1990 | Kyoto | Partial Differential Equations |
| Sunada | Toshikazu | 1990 | Kyoto | Geometry |
| Takasaki | Kanehisa | 1990 | Kyoto | Partial Differential Equations |
| Talagrand | Michel | 1990 | Kyoto | Operator Algebras & Functional Analysis |
| Tardos | Éva | 1990 | Kyoto | Combinatorics |
| Tartar | Luc | 1990 | Kyoto | Partial Differential Equations |
| Taylor | Michael E. | 1990 | Kyoto | Partial Differential Equations |
| Thomason | Robert W. | 1990 | Kyoto | Algebra |
| Thomassen | Carsten | 1990 | Kyoto | Combinatorics |
| Tian | Gang | 1990 | Kyoto | Geometry |
| Tsuchiya | Akihiro | 1990 | Kyoto | Mathematical Physics |
| Turaev | Vladimir G. | 1990 | Kyoto | Topology |
| Uhlenbeck | Karen | 1990 | Kyoto | Plenary |
| van den Dries | Lou P. | 1990 | Kyoto | Mathematical Logic & Foundations |
| Varchenko | Alexandre | 1990 | Kyoto | Plenary |
| Varopoulos | Nicholas Th. | 1990 | Kyoto | Real & Complex Analysis |
| Vojta | Paul | 1990 | Kyoto | Algebraic Geometry |
| Volberg | Alexander L. | 1990 | Kyoto | Real & Complex Analysis |
| Wigderson | Avi | 1990 | Kyoto | Mathematical Aspects of Computer Science |