Surname Singthin (Singthin 
) , all around the world, is a rare family name. The surname Singthin is habitual in South-eastern Asia, particularly Laos, where it is quite a rare surname, and Thailand, where it is a very rare surname. Much less frequently, Singthin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Singthin | Laos, Thailand |
Banjong, Amphayvanh, and Phouthasone