Cognomen Петриа (Petria 
, Петриа 
) , around the world, is a rare family name. The surname Петриа is characteristic of Romania, where it is quite a rare surname, Italy, where it is a very rare surname, and Canada. In absolute terms, this name is the most popular in Romania, Italy, and Russia. Also, Петриа is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Petria | Indonesia, Romania, Australia, United States, Brazil |
| Петриа | Russia |