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, Russia, Kyrgyzstan, Belarus, Ukraine |
| Osinskaya | Russia, Ukraine, United States, Belarus |