Family name Petrunko (Petrunko 
, Петрунко 
) , globally, is a very rare last name. The surname Petrunko is habitual in Russia, where it is a very rare surname, Canada, and Brazil, where it is an extremely rare surname. Very seldom, Petrunko is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Petrunko | Germany, Turkey, Russia, Canada, Brazil |
| Петрунко | Russia, Ukraine |