| Last Name Sort descending | First Name | Year | City | Section/Speaker Type |
|---|---|---|---|---|
| Kostant | B. | 1970 | Nice | Analysis |
| Kostitzin | V.A. | 1924 | Toronto | Mechanics, Physics, Astronomy, Geophysics |
| Kostrikin | A. I. | 1962 | Stockholm | Algebra & Theory of Numbers |
| Kostrikin | A. I. | 1970 | Nice | Algebra |
| Kotani | Shinichi | 1990 | Kyoto | Probability & Mathematical Statistics |
| Köthe | G. | 1928 | Bologna | Analysis |
| Köthe | Gottfried | 1932 | Zurich | Algebra and Number Theory |
| Köthe | Gottfried | 1936 | Oslo | Analysis |
| Kottwitz | Robert E. | 1998 | Berlin | Lie Groups |
| Koukoulopoulos | Dimitris | 2022 | Virtual | Number Theory |
| Kourensky | M. | 1932 | Zurich | Analysis |
| Kovanko | A. S. | 1928 | Bologna | Analysis |
| Kozlov | V. V. | 1986 | Berkeley | Ordinary Differential Equations and Dynamic Systems |
| Kozlowski | Karol | 2022 | Virtual | Mathematical Physics |
| Kra | Bryna | 2006 | Madrid | Ordinary Differential Equations and Dynamical Systems |
| Kraitchik | M. | 1936 | Oslo | Algebra and Number Theory |
| Krall | G. | 1932 | Zurich | Mathematical-technical sciences and astronomy |
| Krasny | Robert | 1990 | Kyoto | Computational Methods |
| Krasovskii | N. N. | 1978 | Helsinki | Plenary |
| Krawtchouk | M. | 1924 | Toronto | Algebra, Theory of Numbers, Analysis |
| Krawtchouk | M. | 1928 | Bologna | Analysis |
| Krawtchouk | M. | 1928 | Bologna | Mechanics, Astronomy, Geodesy, Mathematical Physics, Theoretical Physics |
| Krawtchouk | Michel | 1932 | Zurich | Analysis |
| Krebs | H. | 1932 | Zurich | Geometry |
| Krein | M. G. | 1966 | Moskva | Plenary |