| Last Name | First Name | Year | City Sort ascending | Section/Speaker Type |
|---|---|---|---|---|
| Shalev | Aner | 1998 | Berlin | Algebra |
| Shor | Peter W. | 1998 | Berlin | Plenary/Prize winner |
| Siegmund | David | 1998 | Berlin | Prob & Stats |
| Sigmund | Karl | 1998 | Berlin | Plenary |
| Sloane | N. J. A. | 1998 | Berlin | Combinatorics |
| Smirnov | Feodor A. | 1998 | Berlin | Mathematical Physics |
| Smith | David A. | 1998 | Berlin | Teaching & Popularization of Mathematics |
| Smith | Hart F. | 1998 | Berlin | Analysis |
| Steiner | Hans-Georg | 1998 | Berlin | Teaching & Popularization of Mathematics |
| Stern | Ronald | 1998 | Berlin | Topology |
| Stigler | James | 1998 | Berlin | Teaching & Popularization of Mathematics |
| Stromberg | Jan-Olov | 1998 | Berlin | Numerical Analysis & Scientific Computing |
| Sudan | Madhu | 1998 | Berlin | Mathematical Aspects of Computer Science |
| Swiatek | Grzegorz | 1998 | Berlin | Ordinary Differential Equations & Dynamical Systems |
| Sznitman | Alain-Sol | 1998 | Berlin | Prob & Stats |
| Talagrand | Michel | 1998 | Berlin | Plenary |
| Taubes | Clifford H. | 1998 | Berlin | Topology |
| Thas | Joseph A. | 1998 | Berlin | Combinatorics |
| Todorcevic | Stevo | 1998 | Berlin | Logic |
| Tomczak-Jaegermann | Nicole | 1998 | Berlin | Analysis |
| Trefethen | Lloyd N. | 1998 | Berlin | Numerical Analysis |
| Tsirelson | Boris | 1998 | Berlin | Prob & Stats |
| Tsuji | Takeshi | 1998 | Berlin | Number Theory |
| Uhlmann | Gunther | 1998 | Berlin | Part. Diff. Equations |
| Vafa | Cumrun | 1998 | Berlin | Plenary |