Family name Sengphachan (Sengphachan 
) , in all the world, is a rare surname. The last name Sengphachan is habitual in South-eastern Asia, particularly Laos, where it is quite a rare surname. Also, Sengphachan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sengphachan | Laos, United States |