Family name กรณัฐคูณรัตน์ (กรณัฐคูณรัตน์ 
) , in the entire world, is an extremely rare cognomen. The last name กรณัฐคูณรัตน์ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| กรณัฐคูณรัตน์ | Thailand |