Cognomen Fefilova (Фефилова 
, Fefilova 
) , in the entire world, is quite a rare surname. The family name Fefilova is characteristic of Russia, where it is a rare surname, Estonia, and Kazakhstan. Not in comparison with a country's population, it is the most numerous in Russia, Kazakhstan, and Belarus. Much less frequently, Fefilova is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Фефилова | Kazakhstan, Armenia, Russia, Belarus, Ukraine |
| Fefilova | Russia, Spain, Estonia, Georgia, United States |
| likiia aleksandrovna fefilova botanist |
|