Cognomen Siarova (Siarova 
, Сярова 
) , worldwide, is a rare surname. The surname Siarova is characteristic of Bulgaria, where it is quite a rare surname, Estonia, where it is a rare surname, and Ukraine. In absolute terms, it most frequently occurs in Bulgaria, Ukraine, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Siarova | Belgium, Estonia, Finland, United States, Bulgaria |
| Сярова | Kazakhstan, Ukraine, Bulgaria, Russia |