Family name Фетляев (Фетляев 
, Fetliaev 
) , in the world, is a very rare cognomen. The last name Фетляев is habitual in Russia, where it is a very rare surname, Kazakhstan, and Ukraine, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Фетляев | Kazakhstan, Russia |
| Fetliaev | Ukraine |