Cognomen Sonsanam (Sonsanam 
) , across the world, is a very rare surname. The cognomen Sonsanam is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Sonsanam | Thailand |
Samlee, Khattiya, Pitiphorn, and Jiruttikan