Cognomen Filchenkova (Filchenkova 
, Филченкова , Фильченкова 
) , across the world, is quite a rare family name. The last name Filchenkova is characteristic of Russia, where it is a rare surname, Estonia, and Belarus. Not in comparison with a country's population, it is commonest in Russia, Belarus, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Filchenkova | Ukraine, Russia, Estonia, United States |
| Филченкова | Russia |
| Фильченкова | Kazakhstan, Russia, Ukraine, Belarus |
Фильчёнкова, Філченкова, and Фільченкова