Family name กนกเพ็ชรรัตน์ (กนกเพ็ชรรัตน์ 
) , in the entire world, is a very rare cognomen. The surname กนกเพ็ชรรัตน์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| กนกเพ็ชรรัตน์ | Thailand |