Cognomen Petúnia (Pety 
, Petum 
, Petun 
) , around the globe, is a rare surname. The family name Petúnia is habitual in Hungary, where it is a rare surname, Malaysia, and Romania. Not in comparison with a country's population, this name is the most popular in Indonesia, France, and Malaysia. Likewise, Petúnia is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Pety | Indonesia, Romania, Malaysia, Afghanistan, France |
| Petum | India, Indonesia, United States |
| Petun | Mexico, Indonesia, Malaysia, India |
| Petúnia | Brazil |