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Cognomen Petronis (Petronis
, Петронис
) , across the world, is quite a rare family name. The last name Petronis is characteristic of Northern Europe, particularly Lithuania, where it is quite a common surname, Latvia, where it is quite a rare surname, and Estonia, where it is a rare surname. Not in comparison with a country's population, it is commonest in Lithuania, the United States, and Canada.
| VARIANT | COUNTRY |
|---|---|
| Petronis | Canada, Lithuania, United States, United Kingdom, Argentina |
| Петронис | Kazakhstan, Russia |