Cognomen Ольга-Ярослава (Ольга-Ярослава 
) , in the entire world, is an extremely rare family name. Predominantly, Ольга-Ярослава is the forename as well as the last name. Parts of the name also exists independently as a first name Ольга, and a first name Ярослава.
| VARIANT | COUNTRY |
|---|---|
| Ольга-Ярослава | Kazakhstan, Ukraine |