There are 18 mathematicians whose last name begin with ILY.
| Ilyas, Ihab | Purdue University | 2004 |
| Ilyas, Muhammad | University of Newcastle | 2019 |
| Ilyas, Muhammad Usman | Michigan State University | 2009 |
| Ilyashenko, Aleksandr | Kiev State University | 1955 |
| Ilyashenko, Yulij | Lomonosov Moscow State University | 1969 |
| Ilyasov, Kulakhmet | Kiev State University | 1982 |
| Ilyasov, Maxim | Technische Universität Kaiserslautern | 2011 |
| Ilyasov, Yavdat | Lomonosov Moscow State University | 1989 |
| Ilyes, Amy | Case Western Reserve University | 1993 |
| Ilyevsky, Leonid | Vasyl Karazin Kharkiv National University | 1982 |
| Ilyin, Valentin | ||
| Ilyin, Vladimir | Kharkiv National University of Radioelectronics | 1973 |
| Ilyina, Anna | Technische Universität Dortmund | 2017 |
| Ilyina, Anna | University of Pennsylvania | 2001 |
| Ilyukhin, Alexander | Donetsk University | 1970 |
| Ilyushin, Alexei | 1939 | |
| Ilyushin, Alexei | Lomonosov Moscow State University | 1936 |
| Ilyushkin, Alexey | Technische Universiteit Delft | 2019 |