Cognomen Ostrozhinskiy (Ostrozhinskiy 
, Острожинский 
) , around the globe, is a very rare last name. The last name Ostrozhinskiy is habitual in Kyrgyzstan, where it is a rare surname, Belarus, where it is a very rare surname, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Ostrozhinskiy | United States |
| Острожинский | Kyrgyzstan, Kazakhstan, Russia, Belarus |