Last name Petryni (Petryni 
) , around the globe, is an extremely rare cognomen. The cognomen Petryni is characteristic of Northern America, particularly Canada, where it is an extremely rare surname, and the United States. Very seldom, Petryni is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Petryni | Brazil, United States, Canada |