| Last Name | First Name | Year | City Sort descending | Section/Speaker Type |
|---|---|---|---|---|
| Jerrum | Mark | 1994 | Zurich | Mathematical Aspects of Computer Science |
| Jessen | Börge | 1932 | Zurich | Analysis |
| Johansson | Ingebrigt | 1932 | Zurich | Geometry |
| Joukowsky | N. | 1897 | Zurich | Mechanics and Mathematical Physics |
| Julia | Gaston | 1932 | Zurich | Plenary |
| Juvet | G. | 1932 | Zurich | Mechanics and Mathematical Physics |
| Kahn | Jeffrey | 1994 | Zurich | Combinatorics |
| Kalai | Gilles | 1994 | Zurich | Combinatorics |
| Kalmár | László | 1932 | Zurich | Philosophy and History |
| Kampé de Fériet | J. | 1932 | Zurich | Mechanics and Mathematical Physics |
| Kapouleas | Nikolaos | 1994 | Zurich | Geometry |
| Karamata | J. | 1932 | Zurich | Analysis |
| Kasner | Edward | 1932 | Zurich | Analysis |
| Kasner | Edward | 1932 | Zurich | Geometry |
| Kaufmann | B. | 1932 | Zurich | Geometry |
| Keller | Joseph B. | 1994 | Zurich | Plenary |
| Khruslov | Eugene Ya. | 1994 | Zurich | Mathematical Physics |
| Kienast | A. | 1932 | Zurich | Analysis |
| Kiepert | L. | 1932 | Zurich | Algebra and Number Theory |
| Kirchberg | Eberhard | 1994 | Zurich | Operator Algebras & Functional Analysis |
| Kirwan | Frances | 1994 | Zurich | Geometry |
| Klein | F. | 1897 | Zurich | Plenary |
| Knaster | Bronislaw | 1932 | Zurich | Geometry |
| Kogbetliantz | E. | 1932 | Zurich | Mechanics and Mathematical Physics |
| Kogbetliantz | E. | 1932 | Zurich | Analysis |