| Last Name Sort descending | First Name | Year | City | Section/Speaker Type |
|---|---|---|---|---|
| Joukowsky | N. | 1897 | Zurich | Mechanics and Mathematical Physics |
| Jourdain | P.E.B. | 1912 | Cambridge | Arithmetic, Algebra, Analysis |
| Jourdain | P.E.B. | 1912 | Cambridge | Philosophy and History |
| Joyce | Dominic | 1998 | Berlin | Differential Geometry and Global Analysis |
| Juel | C. | 1928 | Bologna | Geometry |
| Julia | G. M. | 1928 | Bologna | Analysis |
| Julia | Gaston | 1932 | Zurich | Plenary |
| Junnila | A. | 1936 | Oslo | Analysis |
| Juskevic | A. P. | 1966 | Moskva | History and pedagogical questions |
| Juvet | G. | 1928 | Bologna | Geometry |
| Juvet | G. | 1928 | Bologna | Mechanics, Astronomy, Geodesy, Mathematical Physics, Theoretical Physics |
| Juvet | G. | 1932 | Zurich | Mechanics and Mathematical Physics |
| Kac | V. G. | 1978 | Helsinki | Algebra |
| Kac | Victor | 2002 | Beijing | Plenary |
| Kacmarz | S. | 1928 | Bologna | Analysis |
| Kaczmarz | S. | 1936 | Oslo | Analysis |
| Kadison | Richard V. | 1970 | Nice | Analysis |
| Kahan | William M. | 1990 | Kyoto | Computational Methods |
| Kahane | J. -P. | 1986 | Berkeley | Teaching of Mathmatics |
| Kahane | J. P. | 1962 | Stockholm | Plenary |
| Kahn | Jeffrey | 1994 | Zurich | Combinatorics |
| Kahn | Jeremy | 2014 | Seoul | Geometry, Dynamical Systems and Ordinary Differential Equations |
| Kaiser | Gabriele | 2002 | Beijing | Mathematics Education & Popularization of Mathematics |
| Kajdan | D. | 1970 | Nice | Geometry & Topology |
| Kakde | Mahesh | 2022 | Virtual | Number Theory |