| Last Name Sort descending | First Name | Year | City | Section/Speaker Type |
|---|---|---|---|---|
| Katetov | M. | 1962 | Stockholm | Topology & Differential Geometry |
| Kato | Kazuya | 1990 | Kyoto | Number Theory |
| Kato | Kazuya | 2002 | Beijing | Number Theory |
| Kato | Kazuya | 2006 | Madrid | Plenary |
| Kato | Syu | 2022 | Virtual | Algebra |
| Kato | Tosio | 1970 | Nice | Plenary |
| Katok | A. | 1983 | Warszawa | Ord. diff. equations & dynamical systems |
| Katz | Nets | 2014 | Seoul | Analysis and its Applications |
| Katz | Nicholas M. | 1970 | Nice | Algebra |
| Katz | Nicholas M. | 1978 | Helsinki | Number Theory |
| Kaufman | Tali | 2022 | Virtual | Mathematics of Computer Science |
| Kaufmann | B. | 1932 | Zurich | Geometry |
| Kaufmannn | B. H. | 1936 | Oslo | Geometry and Topology |
| Kawaguchi | A. | 1928 | Bologna | Geometry |
| Kawahigashi | Yasuyuki | 2018 | Rio de Janeiro | Analysis and Operator Algebras, Mathematical Physics |
| Kawamata | Yujiro | 1990 | Kyoto | Algebraic Geometry |
| Kayal | Neeraj | 2018 | Rio de Janeiro | Mathematical Aspects of Computer Science |
| Kazhdan | D. | 1986 | Berkeley | Lie Groups and Representations |
| Kazhdan | David | 1974 | Vancouver | Invited (lecture was not given) |
| Kazhdan | David | 2022 | Virtual | Plenary Lecture |
| Kechris | A. S. | 1986 | Berkeley | Mathematical Logic & Foundations |
| Kedem | Rinat | 2014 | Seoul | Mathematical Physics |
| Kedlaya | Kiran S. | 2010 | Hyderabad | Number Theory |
| Keel | Sean | 2018 | Rio de Janeiro | Algebraic and Complex Geometry |
| Keevash | Peter | 2018 | Rio de Janeiro | Combinatorics |