Last name Vornik (Vornik 
, Ворник 
) , all around the world, is a rare cognomen. The surname Vornik is habitual in Ukraine, where it is a rare surname, Estonia, and Portugal. In absolute terms, it most frequently occurs in Ukraine, Russia, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Vornik | Russia, Estonia, United States, Portugal, Italy |
| Ворник | Russia, Kazakhstan, Ukraine, Kyrgyzstan, Belarus |