Surname Osinskaya (Осинская 
, Osinskaya 
) , in the entire world, is quite a rare last name. The last name Osinskaya is habitual in Kazakhstan, where it is quite a rare surname, Belarus, and Russia, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Осинская | Kazakhstan, Belarus, Kyrgyzstan, Russia, Ukraine |
| Osinskaya | Ukraine, Russia, United States, Belarus |