Family name Silimoungkhoun (Silimoungkhoun 
) , around the world, is a rare surname. The surname Silimoungkhoun is habitual in South-eastern Asia, particularly Laos, where it is quite a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Silimoungkhoun | Laos |
Phayviboune, and Thongliam