Cognomen Jiamsawat (Jiamsawat 
) , in the world, is a rare family name. The family name Jiamsawat is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
Pacha, Phachar, Shitichok, Somtawil, Chatikan, Paranyoo, Juthamat, Sittichok, Patcharin, Pongsakron, Sitthichok, Pongsakorn, and Sitthichock