Family name วงศ์น้ำคำ (วงศ์น้ำคำ, Vongnumkam, Wongnamkham 
) , in all the world, is an extremely rare last name. The surname วงศ์น้ำคำ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Wongnamkham | Thailand |