Cognomen พิบูลรัตนสังข์ (พิบูลรัตนสังข์ 
) , in the entire world, is a very rare last name. The cognomen พิบูลรัตนสังข์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| พิบูลรัตนสังข์ | Thailand |