| Last Name Sort descending | First Name | Year | City | Section/Speaker Type |
|---|---|---|---|---|
| Kobayashi | Shoshichi | 1970 | Nice | Geometry & Topology |
| Kobayashi | T. | 2002 | Beijing | Lie Groups |
| Koch | H. V. | 1986 | Berkeley | Number Theory |
| Koch | H. Von | 1912 | Cambridge | Arithmetic, Algebra, Analysis |
| Kodaira | K. | 1954 | Amsterdam | Analysis/Prize winner |
| Koebe | P. | 1908 | Rome | Arithmetic, Algebra, Analysis |
| Koebe | P. | 1928 | Bologna | Analysis |
| Koecher | Max | 1970 | Nice | Algebra |
| Koenigs | G. | 1920 | Strasbourg | Philosophy, History, and Didactics |
| Koenigs | G. | 1924 | Toronto | Geometry |
| Koenigsmann | Jochen | 2018 | Rio de Janeiro | Logic and Foundations |
| Koeppler | H. | 1928 | Bologna | Analysis |
| Koeppler | H. | 1928 | Bologna | Statistics, Mathematical Economics, Probability Calculus, Actuarial Sciences |
| Kogbetliantz | E. | 1932 | Zurich | Analysis |
| Kogbetliantz | E. | 1932 | Zurich | Mechanics and Mathematical Physics |
| Kogbetliantz | E. | 1936 | Oslo | Mathematical Physics, Astronomy and Geophysics |
| Kohlenbach | Ulrich | 2018 | Rio de Janeiro | Logic and Foundations |
| Kohn | J. J. | 1966 | Moskva | Partial differential equations |
| Kohn | Robert V. | 2006 | Madrid | Plenary |
| Kolchin | E. R. | 1966 | Moskva | Algebra |
| Kollár | János | 1990 | Kyoto | Algebraic Geometry |
| Kollár | János | 2014 | Seoul | Plenary |
| Kolman | E. | 1932 | Zurich | Analysis |
| Kolman | E. | 1932 | Zurich | Philosophy and History |
| Kolmogorov | A. N. | 1954 | Amsterdam | Plenary |