Surname Piljun (필준 
, Piljun 
) , across the world, is a very rare cognomen. The family name Piljun is habitual in Eastern Asia, particularly China, where it is an extremely rare surname. Predominantly, Piljun is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 필준 | South Korea |
| Piljun | China, South Korea, Philippines |