| Last Name | First Name | Year | City Sort descending | Section/Speaker Type |
|---|---|---|---|---|
| Li | Jian-Shu | 1994 | Zurich | Lie Groups |
| Li | Jun | 1994 | Zurich | Geometry |
| Lieb | Elliot H. | 1994 | Zurich | Mathematical Physics |
| Linfoot | E. H. | 1932 | Zurich | Algebra and Number Theory |
| Lions | Pierre-Louis | 1994 | Zurich | Plenary/Prize winner |
| Littelmann | Peter | 1994 | Zurich | Algebra |
| Littlewood | J. E. | 1932 | Zurich | Analysis |
| Long | M. | 1932 | Zurich | Geometry |
| Longo | Roberto | 1994 | Zurich | Mathematical Physics |
| Loria | G. | 1897 | Zurich | History and Biography |
| Loria | G. | 1932 | Zurich | The International Commission on the Teaching of Mathematics |
| Loria | Gino | 1932 | Zurich | Philosophy and History |
| Lotz | I. | 1932 | Zurich | Mathematical-technical sciences and astronomy |
| Louveau | Alain | 1994 | Zurich | Logic |
| Lubotzky | Alexander | 1994 | Zurich | Algebra |
| Luecke | John | 1994 | Zurich | Topology |
| Lyubich | Mikhail | 1994 | Zurich | Ord. Diff. Equations |
| Ma | Zhi-Ming | 1994 | Zurich | Prob & Stats |
| Mahler | Kurt | 1932 | Zurich | Algebra and Number Theory |
| Maier | Wilhelm | 1932 | Zurich | Analysis |
| Malavard | L. | 1932 | Zurich | Mechanics and Mathematical Physics |
| Mandelbrojt | S. | 1932 | Zurich | Analysis |
| Mane | Ricardo | 1994 | Zurich | Ord. Diff. Equations |
| Marchand | A. | 1932 | Zurich | Analysis |
| Masur | Howard | 1994 | Zurich | Real & Complex Analysis |