Surname Rostovska (Rostovska 
) , globally, is a very rare last name. The surname Rostovska is habitual in Latvia, where it is a rare surname, Canada, where it is an extremely rare surname, and Ukraine. In absolute terms, it is the most numerous in Latvia, the United States, and Canada.
| VARIANT | COUNTRY |
|---|---|
| Rostovska | Latvia, United States, Canada, Ukraine |
Ростовска, and Ростовська