Surname Bilyayeva (Bilyayeva 
, Биляева 
) , in all the world, is a rare family name. The last name Bilyayeva is characteristic of Belarus, where it is a rare surname, Kazakhstan, where it is a very rare surname, and Kyrgyzstan. In absolute terms, it most frequently occurs in Russia, Belarus, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Bilyayeva | Ukraine, United States |
| Биляева | Kyrgyzstan, Kazakhstan, Belarus, Russia, Ukraine |
| svetlana bilyayeva archaeologist from North Ossetia, RU (b. 1946) |
|