| Last Name Sort ascending | First Name | Year | City | Section/Speaker Type |
|---|---|---|---|---|
| Lück | Wolfgang | 2010 | Hyderabad | Topology |
| Lubotzky | Alexander | 1994 | Zurich | Algebra |
| Lubotzky | Alexander | 2018 | Rio de Janeiro | Plenary |
| Lubich | Christian | 2018 | Rio de Janeiro | Plenary |
| Lubelski | S. | 1936 | Oslo | Algebra and Number Theory |
| Lu | Qi | 2022 | Virtual | Control Theory and Optimization |
| Lovett | E.-O. | 1900 | Paris | Geometry |
| Love | A.E.H. | 1912 | Cambridge | Mechanics, Physical Mathematics, Astronomy |
| Lovász | László | 1983 | Warszawa | Combinatorics |
| Lovász | László | 1990 | Kyoto | Plenary |
| Louveau | Alain | 1994 | Zurich | Logic |
| Lotz | I. | 1932 | Zurich | Mathematical-technical sciences and astronomy |
| Loss | Michael | 2022 | Virtual | Mathematical Physics |
| Losev | Ivan | 2010 | Hyderabad | Lie Theory and Generalisations |
| Losada y Puga | Cristóbal de | 1924 | Toronto | Mechanics, Physics, Astronomy, Geophysics |
| Los | J. | 1962 | Stockholm | Logic, Foundations & History |
| Loria | G. | 1897 | Zurich | History and Biography |
| Loria | G. | 1904 | Heidelberg | History of Mathematics |
| Loria | G. | 1904 | Heidelberg | Pedagogy |
| Loria | G. | 1912 | Cambridge | Philosophy and History |
| Loria | G. | 1928 | Bologna | Philosophy, History of Mathematics |
| Loria | G. | 1932 | Zurich | The International Commission on the Teaching of Mathematics |
| Loria | Gino | 1908 | Rome | Philosophy, History, and Didactics |
| Loria | Gino | 1932 | Zurich | Philosophy and History |
| Lorenzen | P. | 1954 | Amsterdam | Logic & Foundations |