| Last Name | First Name Sort descending | Year | City | Section/Speaker Type |
|---|---|---|---|---|
| Smirnov | Stanislav | 2006 | Madrid | Analysis |
| Smirnov | Stanislav | 2010 | Hyderabad | Plenary/Prize winner |
| Molchanov | Stanislav A. | 1990 | Kyoto | Probability & Mathematical Statistics |
| Szarek | Stanislaw | 2006 | Madrid | Operator Algebras and Functional Analysis |
| Osher | Stanley | 1994 | Zurich | Numerical Analysis & Scientific Computing |
| Osher | Stanley | 2010 | Hyderabad | Plenary |
| Vaes | Stefaan | 2010 | Hyderabad | Functional Analysis and Applications |
| Bergmann | Stefan | 1932 | Zurich | Analysis |
| Müller | Stefan | 1998 | Berlin | Analysis |
| Wenger | Stefan | 2014 | Seoul | Geometry |
| Petermichl | Stefanie | 2018 | Rio de Janeiro | Analysis and Operator Algebras |
| Jegelka | Stefanie | 2022 | Virtual | Statistics and Data Analysis |
| Bianchini | Stefano | 2006 | Madrid | Partial Differential Equations |
| Stolz | Stephan | 1994 | Zurich | Topology |
| Mallat | Stephane | 1998 | Berlin | Plenary |
| Nonnenmacher | Stéphane | 2018 | Rio de Janeiro | Dynamical Systems and Ordinary Differential Equations, Partial Differential Equations |
| Boyd | Stephen | 2006 | Madrid | Control Theory and Optimization |
| Rallis | Stephen | 1990 | Kyoto | Lie Groups & Representation |
| Wainger | Stephen | 1998 | Berlin | Analysis |
| Jackson | Stephen | 2018 | Rio de Janeiro | Logic and Foundations |
| Cook | Stephen A. | 1990 | Kyoto | Plenary |
| Kudla | Stephen S. | 2002 | Beijing | Number Theory |
| Semmes | Stephen W. | 1994 | Zurich | Real & Complex Analysis |
| Zelditch | Steve | 2002 | Beijing | Real & Complex Analysis |
| Hofmann | Steven | 2006 | Madrid | Analysis |