| Last Name | First Name Sort descending | Year | City | Section/Speaker Type |
|---|---|---|---|---|
| Kato | Kazuya | 1990 | Kyoto | Number Theory |
| Kato | Kazuya | 2002 | Beijing | Number Theory |
| Kato | Kazuya | 2006 | Madrid | Plenary |
| Nagami | Kciô | 1970 | Nice | Geometry & Topology |
| Liu | Kefeng | 2002 | Beijing | Mathematical Physics |
| Oguiso | Keiji | 2014 | Seoul | Algebraic and Complex Geometry |
| Yokoyama | Keita | 2022 | Virtual | Logic |
| Ball | Keith | 2022 | Virtual | Special Sectional Lecture |
| Hirachi | Kengo | 2014 | Seoul | Analysis and its Applications |
| Fukaya | Kenji | 1990 | Kyoto | Geometry |
| Nakanishi | Kenji | 2022 | Virtual | Partial Differential Equations |
| Iwasawa | Kenkichi | 1970 | Nice | Algebra |
| Elworthy | Kenneth | 2006 | Madrid | Probability and Statistics |
| Lange | Kenneth | 2014 | Seoul | Probability and Statistics, Mathematics in Science and Technology |
| Hori | Kentaro | 2002 | Beijing | Mathematical Physics |
| Corlette | Kevin | 1994 | Zurich | Geometry |
| Costello | Kevin | 2010 | Hyderabad | Topology |
| McCrimmon | Kevin | 1974 | Vancouver | Algebra |
| Buzzard | Kevin | 2022 | Virtual | Special Plenary Lecture |
| Lee | Ki-Ahm | 2014 | Seoul | Partial Differential Equations |
| Plofker | Kim | 2010 | Hyderabad | Plenary |
| Kedlaya | Kiran S. | 2010 | Hyderabad | Number Theory |
| Igusa | Kiyoshi | 1990 | Kyoto | Topology |
| Roggenkamp | Klaus W. | 1990 | Kyoto | Algebra |
| Honda | Ko | 2006 | Madrid | Geometry |