Cognomen Kaeophaeng (Kaeophaeng 
) , in all the world, is a very rare family name. The last name Kaeophaeng is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kaeophaeng | Thailand |
Sunisa, Wasini, Suwanun, and Nattharikun