| Last Name Sort descending | First Name | Year | City | Section/Speaker Type | 
|---|---|---|---|---|
| Besov | O. V. | 1970 | Nice | Analysis | 
| Bestvina | Mladen | 2002 | Beijing | Topology | 
| Bestvina | Mladen | 2022 | Virtual | Plenary Lecture | 
| Beth | E. W. | 1958 | Edinburgh | Logic & Foundations | 
| Bethuel | Fabrice | 1998 | Berlin | Part. Diff. Equations | 
| Betz | W. | 1950 | Cambridge (USA) | |
| Beurling | A. | 1950 | Cambridge (USA) | |
| Beurling | A. | 1950 | Cambridge (USA) | Plenary | 
| Beuzart-Plessis | Raphaël | 2022 | Virtual | Number Theory, Lie Theory and Generalizations | 
| Beylkin | Gregory | 1998 | Berlin | Numerical Analysis & Scientific Computing | 
| Bezikowitsch | A. | 1924 | Toronto | Mechanics, Physics, Astronomy, Geophysics | 
| Bezrukavnikov | Roman V. | 2006 | Madrid | Lie Groups and Lie Algebras | 
| Bhargava | Manjul | 2006 | Madrid | Number Theory | 
| Bhargava | Manjul | 2014 | Seoul | Plenary/Prize winner | 
| Bhatt | Bhargav | 2022 | Virtual | Plenary Lecture | 
| Bianchi | L. | 1908 | Rome | Geometry | 
| Bianchini | Stefano | 2006 | Madrid | Partial Differential Equations | 
| Biane | P. | 2002 | Beijing | Operator Algebras & Functional Analysis | 
| Bickel | P. | 2002 | Beijing | Prob & Stats | 
| Bieberbach | Ludwig | 1932 | Zurich | Plenary | 
| Biernacki | M. | 1932 | Zurich | Analysis | 
| Biezeno | C. B. | 1928 | Bologna | Engineering and Industrial Applications | 
| Bigelow | S. | 2002 | Beijing | Algebra | 
| Bilimovitch | A. | 1928 | Bologna | Mechanics, Astronomy, Geodesy, Mathematical Physics, Theoretical Physics | 
| Bilimovitch | Antoine | 1932 | Zurich | Mechanics and Mathematical Physics |