Cognomen Порохнавец (Порохнавец 
) , all over the world, is a very rare last name. The last name Порохнавец is habitual in Ukraine, where it is a very rare surname, Kazakhstan, and Russia, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Порохнавец | Kazakhstan, Russia, Ukraine |
Porohnavets, and Porokhnavets