Cognomen Soisingh (Soisingh 
) , in the world, is a very rare surname. The last name Soisingh is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Soisingh | Thailand |
Dumrong, Piyachat, Nitayavat, Nantharat, and Napatchira