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Cognomen Petrolo (Petrolo
) , all around the world, is quite a rare surname. The surname Petrolo is habitual in Italy, where it is quite a rare surname, Argentina, where it is a rare surname, and Slovakia. In absolute terms, it is the most numerous in Italy, Argentina, and Australia. Much less frequently, Petrolo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Petrolo | Canada, Italy, France, Australia, Argentina |