Cognomen พงศ์ศศิเดชน์ (พงศ์ศศิเดชน์ 
) , worldwide, is an extremely rare family name. The last name พงศ์ศศิเดชน์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| พงศ์ศศิเดชน์ | Thailand |