Family name Klawpai (Klawpai 
) , in all the world, is a very rare cognomen. The surname Klawpai is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Klawpai | Thailand |
Sudked, Ratirat, Kanpithcha, Supitsara, and Kanpitcha