Cognomen เพ็งสุขรัตน์ (เพ็งสุขรัตน์ 
) , across the world, is a very rare family name. The family name เพ็งสุขรัตน์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| เพ็งสุขรัตน์ | Thailand |