Cognomen เพ็งรัตนโชติ (เพ็งรัตนโชติ 
) , throughout the world, is a very rare last name. The last name เพ็งรัตนโชติ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| เพ็งรัตนโชติ | Thailand |