| Last Name Sort descending | First Name | Year | City | Section/Speaker Type | 
|---|---|---|---|---|
| Boehm | Carl | 1936 | Oslo | Probability Calculus, Mathematical Statistics, Insurance Mathematics, and Econometry | 
| Boettcher | Julia | 2022 | Virtual | Combinatorics | 
| Bögel | Karl | 1932 | Zurich | Analysis | 
| Boggio | T. | 1908 | Rome | Arithmetic, Algebra, Analysis | 
| Boggio | T. | 1908 | Rome | Mechanics, Physical Mathematics, Astronomy | 
| Bogoliúboff | Nicolas | 1932 | Zurich | Mechanics and Mathematical Physics | 
| Bogolyubov | N. N. | 1958 | Edinburgh | Plenary | 
| Bogomolny | Eugene | 1998 | Berlin | Mathematical Physics | 
| Bogomolov | F. A. | 1978 | Helsinki | Algebraic Geometry | 
| Bogoyavlensky | O. I. | 1978 | Helsinki | Geometry | 
| Bohlmann | G. | 1908 | Rome | Various Applications of Mathematics | 
| Bohr | H. | 1928 | Bologna | Analysis | 
| Bohr | H. | 1950 | Cambridge (USA) | |
| Bohr | H. | 1950 | Cambridge (USA) | Analysis | 
| Bohr | Harald | 1932 | Zurich | Plenary | 
| Bökstedt | Marcel A. | 1990 | Kyoto | Topology | 
| Bolibruch | A. A. | 1994 | Zurich | Ord. Diff. Equations | 
| Bollobas | Bela | 1998 | Berlin | Combinatorics | 
| Bolotin | Sergey V. | 1994 | Zurich | Ord. Diff. Equations | 
| Bolthausen | Erwin | 2002 | Beijing | Prob & Stats | 
| Bombieri | Enrico | 1974 | Vancouver | Plenary/Prize winner | 
| Bompiani | E. | 1912 | Cambridge | Geometry | 
| Bompiani | E. | 1928 | Bologna | Geometry | 
| Bona | J. | 1978 | Helsinki | Mathematical Physics & Mechanics | 
| Bonacini | C. | 1928 | Bologna | Philosophy, History of Mathematics |