| Last Name Sort descending | First Name | Year | City | Section/Speaker Type |
|---|---|---|---|---|
| Wilkosz | W. | 1932 | Zurich | Analysis |
| Willcox | W.F. | 1924 | Toronto | Statistics, Actuarial Science, Economics |
| Willems | Jan C. | 1998 | Berlin | Control Theory & Optimization |
| Williams | Lauren K. | 2022 | Virtual | Combinatorics, Lie Theory and Generalizations, Mathematical Physics |
| Williams | R. F. | 1970 | Nice | Analysis |
| Williams | R. J. | 1998 | Berlin | Prob & Stats |
| Williams | Ryan | 2014 | Seoul | Mathematical Aspects of Computer Science |
| Williams | W.L.G. | 1924 | Toronto | Algebra, Theory of Numbers, Analysis |
| Williamson | Geordie | 2018 | Rio de Janeiro | Plenary |
| Willigens | Ch. | 1920 | Strasbourg | Mechanics, Physical Mathematics, Astronomy |
| Willis | George | 2022 | Virtual | Algebra |
| Willwacher | Thomas | 2018 | Rio de Janeiro | Topology, Mathematical Physics |
| Wilson | E. B. | 1904 | Heidelberg | Arithmetic and Algebra |
| Wilson | Edwin B. | 1924 | Toronto | Statistics, Actuarial Science, Economics |
| Wilson | R. L. | 1986 | Berkeley | Algebra |
| Wiman | A. | 1904 | Heidelberg | Arithmetic and Algebra |
| Winkler | Peter | 2002 | Beijing | Combinatorics |
| Winn | C. E. | 1932 | Zurich | Analysis |
| Winn | C. E. | 1936 | Oslo | Geometry and Topology |
| Wintenberger | J-Pierre | 2010 | Hyderabad | Number Theory |
| Winter | Wilhelm | 2018 | Rio de Janeiro | Analysis and Operator Algebras |
| Wirtinger | W. | 1904 | Heidelberg | Plenary |
| Wise | Daniel | 2014 | Seoul | Geometry, Topology |
| Witten | E. | 1986 | Berkeley | Plenary |
| Witten | E. | 2002 | Beijing | Plenary |