There are 25 mathematicians whose last name begin with LYA.
| Lyabakh, Nataly | Ludwig-Maximilians-Universität München | 2000 |
| Lyakh, Ivan | Institute of Mathematics, Moldavian Academy of Science | 1986 |
| Lyakhov, Lev | Voronezh State University | |
| Lyakhova, Sophia | University of Bristol | 2006 |
| Lyakhovitsky, Vladimir | Lomonosov Moscow State University | 1957 |
| Lyaletski, Alexander | ||
| Lyal'ko, S.B. | Taras Shevchenko National University of Kyiv | 1979 |
| Lyall, Katharine | Cornell University | 1969 |
| Lyall, Neil | University of Wisconsin-Madison | 2004 |
| Lyamaev, Sergei | Marchuk Institute of Numerical Mathematics of the Russian Academy of Sciences | 2023 |
| Lyamshev, Leonid | Lebedev Institute of Physics | 1954 |
| Lyamshev, Leonid | Lebedev Institute of Physics | 1964 |
| Lyan, Gregory | Sobolev Institute of Mathematics, Novosibirsk | 1980 |
| Lyansky, Yan | Temple University | 2001 |
| Lyantse, Vladyslav | Lomonosov Moscow State University | 1964 |
| Lyantse, Vladyslav | Ivan Franko National University of Lviv | 1951 |
| Lyapin, Alexander | Siberian Federal University | 2009 |
| Lyapin, Evgeny | St. Petersburg State University | 1939 |
| Lyapunov, Aleksandr | St. Petersburg State University | 1885 |
| Lyapunov, Aleksei | Steklov Institute of Mathematics | 1939 |
| Lyaschenko, V. | Kiev State University | 1977 |
| Lyashenko, Nikolai | St. Petersburg State University | 1973 |
| Lyashko, Sergei | 1981 | |
| Lyashko, Sergey | St. Petersburg State University | 1994 |
| Lyaudet, Laurent | École Normale Supérieure de Lyon | 2007 |