Surname Kornitskiy (Kornitskiy 
, Корницкий 
, Корнитский ) , around the world, is a rare family name. The last name Kornitskiy is habitual in Belarus, where it is a rare surname, Kazakhstan, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Kornitskiy | United States, Ukraine |
| Корницкий | Kazakhstan, Belarus, Kyrgyzstan, Russia, Ukraine |
| Корнитский | Russia |