| Last Name | First Name | Year | City Sort descending | Section/Speaker Type |
|---|---|---|---|---|
| Wavre | Rolin | 1932 | Zurich | Plenary |
| Weber | H. | 1897 | Zurich | Arithmetic and Algebra |
| Webster | Sidney M. | 1994 | Zurich | Real & Complex Analysis |
| Weinberger | Shmuel | 1994 | Zurich | Topology |
| Weiss | E. A. | 1932 | Zurich | Geometry |
| Weyrich | Rudolf | 1932 | Zurich | Mechanics and Mathematical Physics |
| Whitehead | J. H. C. | 1932 | Zurich | Geometry |
| Wiener | N. | 1932 | Zurich | Analysis |
| Wiles | Andrew | 1994 | Zurich | Plenary |
| Wilkosz | W. | 1932 | Zurich | Analysis |
| Winn | C. E. | 1932 | Zurich | Analysis |
| Wodzicki | Mariusz | 1994 | Zurich | Operator Algebras & Functional Analysis |
| Wolff | Julius | 1932 | Zurich | Analysis |
| Wrinch | Dorothy | 1932 | Zurich | Analysis |
| Wundheiler | Alexander | 1932 | Zurich | Mechanics and Mathematical Physics |
| Yoccoz | Jean-Christophe | 1994 | Zurich | Plenary/Prize winner |
| Young | Lai-Sang | 1994 | Zurich | Ord. Diff. Equations |
| Zaremba | S. | 1932 | Zurich | Mechanics and Mathematical Physics |
| Zervos | Marie | 1932 | Zurich | Pedagogy |
| Zeuthen | H. G. | 1897 | Zurich | History and Biography |
| Zygmund | A. | 1932 | Zurich | Analysis |
| Wigderson | Avi | 1994 | Zurich | Plenary/Prize winner |
| Zelmanov | Efim I. | 1994 | Zurich | Plenary/Prize winner |