| Last Name | First Name | Year | City | Section/Speaker Type Sort ascending |
|---|---|---|---|---|
| Blaschke | W. | 1928 | Bologna | Geometry |
| Bogoyavlensky | O. I. | 1978 | Helsinki | Geometry |
| Bompiani | E. | 1912 | Cambridge | Geometry |
| Bompiani | E. | 1928 | Bologna | Geometry |
| Bonnesen | T. | 1928 | Bologna | Geometry |
| Bonnesen | T.R. | 1924 | Toronto | Geometry |
| Borsuk | Karol | 1932 | Zurich | Geometry |
| Bortolotti | Enea | 1928 | Bologna | Geometry |
| Bortolotti | Ettore | 1924 | Toronto | Geometry |
| Brendle | Simon A. | 2006 | Madrid | Geometry |
| Brill | A. v. | 1904 | Heidelberg | Geometry |
| Brouwer | L. | 1908 | Rome | Geometry |
| Brouwer | L.E.J. | 1912 | Cambridge | Geometry |
| Bruckner | M. | 1908 | Rome | Geometry |
| Brückner | M. | 1912 | Cambridge | Geometry |
| Brückner | M. | 1928 | Bologna | Geometry |
| Brunn | H. | 1897 | Zurich | Geometry |
| Brusotti | L. | 1928 | Bologna | Geometry |
| Bryant | R. L. | 1986 | Berkeley | Geometry |
| Burali-Forti | C. | 1897 | Zurich | Geometry |
| Bydovský | B. | 1928 | Bologna | Geometry |
| Bydzovsky | B. | 1924 | Toronto | Geometry |
| Bydzowsky | Bohumil | 1920 | Strasbourg | Geometry |
| Cartan | E. | 1920 | Strasbourg | Geometry |
| Cartan | E. | 1928 | Bologna | Geometry |