| Last Name Sort descending | First Name | Year | City | Section/Speaker Type |
|---|---|---|---|---|
| Ying | Lexing | 2022 | Virtual | Numerical Analysis and Scientific Computing |
| Yoccoz | Jean-Christophe | 1990 | Kyoto | Ordinary Differential Equations & Dynamical Systems |
| Yoccoz | Jean-Christophe | 1994 | Zurich | Plenary/Prize winner |
| Yokoyama | Keita | 2022 | Virtual | Logic |
| Yong | Jiongmin | 2014 | Seoul | Control Theory and Optimization |
| Yor | Marc | 1990 | Kyoto | Probability & Mathematical Statistics |
| Yosida | K. | 1954 | Amsterdam | Plenary |
| You | Jiangong | 2018 | Rio de Janeiro | Dynamical Systems and Ordinary Differential Equations |
| Young | L. C. | 1936 | Oslo | Analysis |
| Young | Lai-Sang | 1994 | Zurich | Ord. Diff. Equations |
| Young | Lai-Sang | 2018 | Rio de Janeiro | Plenary |
| Young | Robert J | 2022 | Virtual | Geometry, Analysis |
| Young | W. H. | 1928 | Bologna | Plenary |
| Young | W.-H. | 1920 | Strasbourg | Arithmetic, Algebra, Analysis |
| Young | W.H. | 1908 | Rome | Arithmetic, Algebra, Analysis |
| Young | W.H. | 1924 | Toronto | Plenary |
| Yu | Bin | 2022 | Virtual | Statistics and Data Analysis |
| Yu | Guoliang | 2006 | Madrid | Operator Algebras and Functional Analysis |
| Yu | Shih-Hsien | 2014 | Seoul | Partial Differential Equations |
| Yuan | Ya-xiang | 2014 | Seoul | Numerical Analysis and Scientific Computing, Control Theory and Optimization |
| Yule | G.U. | 1924 | Toronto | Statistics, Actuarial Science, Economics |
| Yun | Zhiwei | 2018 | Rio de Janeiro | Algebraic and Complex Geometry, Lie Theory and Generalizations |
| Zabczyk | J. | 1983 | Warszawa | Control Theory & Optimization |
| Zaden | L. A. | 1966 | Moskva | 1/2 hr. report |
| Zagier | D. | 1986 | Berkeley | Algebraic Geometry |