| Last Name Sort ascending | First Name | Year | City | Section/Speaker Type |
|---|---|---|---|---|
| Lascar | D | 2002 | Beijing | Logic |
| Larsen | Michael | 2022 | Virtual | Algebra, Lie Theory and Generalizations |
| Larmor | J. | 1920 | Strasbourg | Plenary |
| Larmor | J. | 1928 | Bologna | Mechanics, Astronomy, Geodesy, Mathematical Physics, Theoretical Physics |
| Larmor | J.-A. | 1920 | Strasbourg | Mechanics, Physical Mathematics, Astronomy |
| Larmor | Sir Joseph | 1924 | Toronto | Engineering |
| Larman | D. G. | 1978 | Helsinki | Geometry |
| Lapid | Erez | 2010 | Hyderabad | Lie Theory and Generalisations |
| Lanzavecchia | P. | 1928 | Bologna | Philosophy, History of Mathematics |
| Lannes | Jean | 1994 | Zurich | Topology |
| Langlands | R. P. | 1970 | Nice | Geometry & Topology |
| Langlands | R. P. | 1978 | Helsinki | Plenary |
| Lange | Kenneth | 2014 | Seoul | Probability and Statistics, Mathematics in Science and Technology |
| Lanford III | Oscar E. | 1974 | Vancouver | Mathematical Physics & Mechanics |
| Lanford | O. E. | 1986 | Berkeley | Numerical Methods & Computing |
| Lando | Sergey | 2010 | Hyderabad | Combinatorics |
| Landim | Claudio | 2018 | Rio de Janeiro | Mathematical Physics, Probability and Statistics |
| Landau | E. | 1912 | Cambridge | Plenary |
| Lanczos | C. | 1958 | Edinburgh | Plenary |
| Lamor | Sir J. | 1912 | Cambridge | Plenary |
| Lamberti | F. | 1928 | Bologna | Mechanics, Astronomy, Geodesy, Mathematical Physics, Theoretical Physics |
| Lamb | H. | 1908 | Rome | Mechanics, Physical Mathematics, Astronomy |
| Lamb | H. | 1912 | Cambridge | Mechanics, Physical Mathematics, Astronomy |
| Lalonde | François | 2006 | Madrid | Geometry |
| Lalley | Steven | 2006 | Madrid | Probability and Statistics |