There are 32 mathematicians whose last name begin with ILL.
| ILLAND, Camille | Université Pierre-et-Marie-Curie - Paris VI | 2012 |
| Illanes, Alejandro | Universidad Nacional Autónoma de México (UNAM) | 1984 |
| Illanes, Felipe | New York University | 1996 |
| Illanes, Gastón | Massachusetts Institute of Technology | 2016 |
| Illán González, Jesús | Universidad de la Habana | 1987 |
| Illayk, Abbas | Université de Lille I | 2003 |
| Ille, Hildegard | Universität Berlin | 1924 |
| Ille, Pierre | Aix-Marseille Université | 1989 |
| Illeditsch, Philipp | Texas A&M University | 2007 |
| Illek, Barbara | Universität Leipzig | 1983 |
| Illenberger, Nicholas | University of Pennsylvania | 2022 |
| Illengo, Marco | Scuola Normale Superiore di Pisa | 2008 |
| Illengo, Marco | Université Bordeaux 1 | 2008 |
| Illeperuma, Widusha | Harvard University | 2015 |
| Illés, Tibor | Eötvös Loránd University | 1989 |
| Illgen, Anita | Universität Leipzig | 1977 |
| Illian, Josua | Oakland University | 2020 |
| Illiano, Davide | Universitetet i Bergen | 2021 |
| Illiano, Vittorio | Imperial College London | 2017 |
| Illicheva, L | Taras Shevchenko National University of Kyiv | 1997 |
| Illies, Georg | Westfälische Wilhelms-Universität Münster | 1997 |
| Illing, Gerhard | Ludwig-Maximilians-Universität München | 1984 |
| Illingworth, C. R. | ||
| Illingworth, Frederick | University of Cambridge | 2021 |
| Illingworth, Garth | Australian National University | 1974 |
| Illingworth, Martin | University of Cambridge | 1982 |
| Illman, Sören | Princeton University | 1972 |
| Illner, Reinhard | Rheinische Friedrich-Wilhelms-Universität Bonn | 1976 |
| Illoussamen, El Hossein | Faculty of Science, Rabat | 1996 |
| Illouz, Gabriel | Université Paris-Sud XI - Orsay | 2000 |
| Illouz-Zakai, Evelyne | Bar-Ilan University | 1998 |
| Illusie, Luc | Université Paris-Sud XI - Orsay | 1971 |