Surname Filchagova (Filchagova 
, Фильчагова 
) , around the world, is a rare cognomen. The cognomen Filchagova is habitual in Russia, where it is a rare surname, and Kazakhstan, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Filchagova | Russia |
| Фильчагова | Kazakhstan, Russia |
Филчагова, and Фільчагова