Cognomen Пилтоян (Пилтоян 
, Piltoian 
) , in the world, is a rare surname. The family name Пилтоян is habitual in Georgia, where it is quite a rare surname, and Russia, where it is a very rare surname. Also, Пилтоян is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Пилтоян | Armenia, Russia |
| Piltoian | Georgia |