Surname Yiamhan (Yiamhan 
) , around the globe, is a very rare last name. The surname Yiamhan is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Yiamhan | Thailand |
Chalita, Klarhan, Suraphot, Prangthip, and Kittiyaporn