| Last Name | First Name Sort descending | Year | City | Section/Speaker Type |
|---|---|---|---|---|
| Rasmussen | Jacob | 2022 | Virtual | Topology |
| Devisme | Jacques | 1932 | Zurich | Analysis |
| Hadamard | Jacques | 1920 | Strasbourg | Mechanics, Physical Mathematics, Astronomy |
| Hadamard | Jacques | 1920 | Strasbourg | Arithmetic, Algebra, Analysis |
| Hadamard | Jacques | 1928 | Bologna | Plenary |
| Bochi | Jairo | 2018 | Rio de Janeiro | Dynamical Systems and Ordinary Differential Equations |
| Nielsen | Jakob | 1936 | Oslo | Plenary |
| Shatah | Jalal | 1994 | Zurich | Part. Diff. Equations |
| Arthur | James | 1998 | Berlin | Lie Groups |
| Arthur | James | 2014 | Seoul | Plenary |
| Ax | James | 1970 | Nice | Algebra |
| Glimm | James | 1974 | Vancouver | Plenary |
| McKernan | James | 2010 | Hyderabad | Algebraic Geometry |
| Renegar | James | 1990 | Kyoto | Computational Methods |
| Serrin | James | 1970 | Nice | Analysis |
| Stigler | James | 1998 | Berlin | Teaching & Popularization of Mathematics |
| Maynard | James | 2018 | Rio de Janeiro | Number Theory |
| Maynard | James | 2022 | Virtual | Plenary/Prize winner |
| Clarkson | James A. | 1932 | Zurich | Analysis |
| Baumgartner | James E. | 1994 | Zurich | Logic |
| Bramble | James H. | 1974 | Vancouver | Numerical Mathematics |
| Rogers | James Harvey | 1924 | Toronto | History, Philosophy, Didactics |
| Glover | James W. | 1924 | Toronto | Statistics, Actuarial Science, Economics |
| de Lange | Jan | 2006 | Madrid | Mathematics Education and Popularization of Mathematics |
| von Plato | Jan | 2018 | Rio de Janeiro | Invited (lecture was not given) |