Family name Чилоян (Чилоян 
, Chiloyan 
) , in all the world, is a rare last name. The surname Чилоян is characteristic of Russia, where it is a very rare surname, Greece, and the United States, where it is an extremely rare surname. Likewise, Чилоян is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Чилоян | Russia, Armenia |
| Chiloyan | Greece, United States, Russia |