There are 5 mathematicians whose last name begin with ILS.
| Ilse, Dietrich | Humboldt-Universität zu Berlin | 1964 |
| Ilsemann, Helmut | Universität Innsbruck | 1957 |
| Ilsen, David | Technische Universität Kaiserslautern | 2006 |
| Ilsky, Alexander | Gubkin Russian State University of Oil and Gas | 1954 |
| Ilsky, Alexander | Gubkin Russian State University of Oil and Gas | 1963 |