Family name Hiamhoen (Hiamhoen 
) , in the entire world, is a very rare cognomen. The last name Hiamhoen is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Hiamhoen | Thailand |
Kitti, Prasit, Orathai, Nirandon, Prapaiporn, and Prapatsorn