Cognomen Chachaiyaphum (Chachaiyaphum 
) , throughout the world, is a very rare family name. The family name Chachaiyaphum is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname, and Malaysia, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Chachaiyaphum | Malaysia, Thailand |