| Last Name | First Name | Year | City | Section/Speaker Type Sort descending |
|---|---|---|---|---|
| Mentré | Paul | 1932 | Zurich | Geometry |
| Merlin | É. | 1924 | Toronto | Geometry |
| Meyer | F. | 1904 | Heidelberg | Geometry |
| Meyer | F. | 1928 | Bologna | Geometry |
| Mikhalkin | Grigory | 2006 | Madrid | Geometry |
| Millson | John J. | 1990 | Kyoto | Geometry |
| Mimura | Yukio | 1932 | Zurich | Geometry |
| Minicozzi | William P. | 2006 | Madrid | Geometry |
| Mira | Pablo | 2010 | Hyderabad | Geometry |
| Miret | D. | 1924 | Toronto | Geometry |
| Montesano | D. | 1908 | Rome | Geometry |
| Morley | F. | 1912 | Cambridge | Geometry |
| Morley | F. | 1924 | Toronto | Geometry |
| Mrowka | Tomasz S. | 1994 | Zurich | Geometry |
| Mühlendyck | O. | 1932 | Zurich | Geometry |
| Müller | W. | 1983 | Warszawa | Geometry |
| Murnaghan | F.D. | 1924 | Toronto | Geometry |
| Murray | F.-H. | 1920 | Strasbourg | Geometry |
| Naber | Aaron | 2014 | Seoul | Geometry |
| Nabutovsky | Alexander | 2010 | Hyderabad | Geometry |
| Naess | A. | 1924 | Toronto | Geometry |
| Nalli | Pia | 1928 | Bologna | Geometry |
| Narasinga | A. | 1928 | Bologna | Geometry |
| Neves | André | 2014 | Seoul | Geometry |
| Neville | E.H. | 1912 | Cambridge | Geometry |