Last name Ростислав-Тарас (Ростислав-Тарас 
) , worldwide, is an extremely rare surname. Much more prevalently, Ростислав-Тарас is the forename as well as the last name. Parts of the name also exists independently as a first name Ростислав, and a first name Тарас.
| VARIANT | COUNTRY |
|---|---|
| Ростислав-Тарас | Ukraine |