| Last Name Sort descending | First Name | Year | City | Section/Speaker Type | 
|---|---|---|---|---|
| Uhlenbeck | K. K. | 1983 | Warszawa | Geometry | 
| Uhlenbeck | Karen | 1990 | Kyoto | Plenary | 
| Uhlig | D. | 1978 | Helsinki | Discrete Math & math Aspects of Computer Science | 
| Uhlmann | Gunther | 1998 | Berlin | Part. Diff. Equations | 
| Ulam | St. | 1932 | Zurich | Analysis | 
| Ulcigrai | Corinna | 2022 | Virtual | Dynamics | 
| Uljanov | P. | 1970 | Nice | Analysis | 
| Ullmo | Emmanuel | 2002 | Beijing | Number Theory | 
| Ullrich | Egon | 1932 | Zurich | Analysis | 
| Ullrich | Egon | 1936 | Oslo | Analysis | 
| Ungerer | A. | 1920 | Strasbourg | Philosophy, History, and Didactics | 
| Ungerer | A. | 1920 | Strasbourg | Plenary | 
| Uraltseva | N. N. | 1970 | Nice | Analysis | 
| Uraltseva | N. N. | 1986 | Berkeley | Partial Differential Equations and Dynamic Systems | 
| Urban | Eric | 2006 | Madrid | Number Theory | 
| Urban | F. M. | 1928 | Bologna | Statistics, Mathematical Economics, Probability Calculus, Actuarial Sciences | 
| Urbanik | K. | 1966 | Moskva | 1/2 hr. report | 
| Uribe | Bernardo | 2018 | Rio de Janeiro | Topology | 
| Uspensky | J.V. | 1924 | Toronto | Algebra, Theory of Numbers, Analysis | 
| Vacca | G. | 1912 | Cambridge | Philosophy and History | 
| Vadhan | Salil | 2010 | Hyderabad | Mathematical Aspects of Computer Science | 
| Vaes | F.-J. | 1900 | Paris | Geometry | 
| Vaes | Stefaan | 2010 | Hyderabad | Functional Analysis and Applications | 
| Vafa | Cumrun | 1998 | Berlin | Plenary | 
| Vaidyanathaswamy | R. | 1928 | Bologna | Analysis |