Cognomen Poroa (Poroa 
) , worldwide, is a very rare surname. The surname Poroa is characteristic of New Zealand, where it is a rare surname, Australia, where it is a very rare surname, and Mexico, where it is an extremely rare surname. Much less frequently, Poroa is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Poroa | Australia, Philippines, New Zealand, Mexico |