Surname Pirojan (Пироян 
, Pirojan 
) , around the globe, is a very rare last name. The cognomen Pirojan is characteristic of Russia, where it is a very rare surname, and India, where it is an extremely rare surname. More frequently, Pirojan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Пироян | Armenia, Russia |
| Pirojan | India |