| Last Name Sort ascending | First Name | Year | City | Section/Speaker Type |
|---|---|---|---|---|
| Lalesco | T. | 1908 | Rome | Arithmetic, Algebra, Analysis |
| Lagunoff | B. | 1928 | Bologna | Statistics, Mathematical Economics, Probability Calculus, Actuarial Sciences |
| Lagos Campos | B. | 1912 | Cambridge | Didactics |
| Lafforgue | L. | 1998 | Berlin | Lie Groups |
| Lafforgue | Laurent | 2002 | Beijing | Plenary/Prize winner |
| Lafforgue | Vincent | 2002 | Beijing | Operator Algebras & Functional Analysis |
| Lafforgue | Vincent | 2018 | Rio de Janeiro | Plenary |
| Ladyzhenskaya | Olga | 1994 | Zurich | ICM Emmy Noether Lecture |
| Ladyzenskaya | O. | 1983 | Warszawa | Mathematical physics & mechanics |
| Ladyzenskaja | O. A. | 1966 | Moskva | Applied mathematics & mathematical physics |
| Lacoin | Hubert | 2022 | Virtual | Probability |
| Lackenby | Mark | 2010 | Hyderabad | Topology |
| Lachlan | A. H. | 1986 | Berkeley | Mathematical Logic & Foundations |
| Lacey | Michael T. | 1998 | Berlin | Analysis |
| Labourie | Francois | 1998 | Berlin | Differential Geometry and Global Analysis |
| Laboccetta | L. | 1928 | Bologna | Geometry |
| Laboccetta | L. | 1928 | Bologna | Mechanics, Astronomy, Geodesy, Mathematical Physics, Theoretical Physics |
| Laboccetta | L. | 1932 | Zurich | Analysis |
| Laboccetta | L. | 1932 | Zurich | Mechanics and Mathematical Physics |
| Laba | Izabella | 2014 | Seoul | Analysis and its Applications |
| La Menza | F. | 1928 | Bologna | Analysis |
| Kuznetsov | A. V. | 1974 | Vancouver | Mathematical Logic and the Foundations of Mathematics |
| Kuznetsov | Alexander | 2014 | Seoul | Algebraic and Complex Geometry |
| Kuznetsov | Alexander | 2022 | Virtual | Plenary Lecture |
| Kuznetsov | Yu. A. | 1983 | Warszawa | Numerical methods |