Cognomen Kaewpromchai (Kaewpromchai 
) , in the entire world, is a very rare last name. The family name Kaewpromchai is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kaewpromchai | Thailand |
Arnubhab, Arnubhap, Damrong, Charnnubhap, and Nobphamat