Cognomen Sengphasouk (Sengphasouk 
) , globally, is a rare surname. The surname Sengphasouk is habitual in South-eastern Asia, particularly Laos, where it is quite a rare surname. Likewise, Sengphasouk is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sengphasouk | Laos |