Family name Vongjom (Vongjom 
) , in the entire world, is a very rare last name. The last name Vongjom is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Vongjom | Thailand |
Chai, Ampon, Pinit, Ployprowfaa, Teeranun, and Ployprawfaa