| Last Name | First Name | Year | City | Section/Speaker Type Sort descending |
|---|---|---|---|---|
| Kuratowski | C. | 1928 | Bologna | Geometry |
| Laboccetta | L. | 1928 | Bologna | Geometry |
| Lalonde | François | 2006 | Madrid | Geometry |
| Larman | D. G. | 1978 | Helsinki | Geometry |
| Le Roux | 1920 | Strasbourg | Geometry | |
| LeBrun | Claude | 1994 | Zurich | Geometry |
| Li | Jun | 1994 | Zurich | Geometry |
| Lilienthal | R. v. | 1904 | Heidelberg | Geometry |
| Liu | Xiaobo | 2006 | Madrid | Geometry |
| Long | M. | 1932 | Zurich | Geometry |
| Lovett | E.-O. | 1900 | Paris | Geometry |
| Lusternik | L. | 1928 | Bologna | Geometry |
| Ma | Xiaonan | 2010 | Hyderabad | Geometry |
| Mabuchi | Toshiki | 2006 | Madrid | Geometry |
| Macaulay | F. S. | 1904 | Heidelberg | Geometry |
| MacFarlane | Alexander | 1900 | Paris | Geometry |
| MacLean | N.B. | 1924 | Toronto | Geometry |
| Marques | Fernando Codá | 2010 | Hyderabad | Geometry |
| Martin | A | 1912 | Cambridge | Geometry |
| McConnell | A. J. | 1928 | Bologna | Geometry |
| McDuff | Dusa | 1990 | Kyoto | Geometry |
| McMullen | P. | 1974 | Vancouver | Geometry |
| Meeks | W. H. | 1986 | Berkeley | Geometry |
| Menger | K. | 1928 | Bologna | Geometry |
| Mentré | P. | 1928 | Bologna | Geometry |