Last name Sian-Chin (Sian-Chin 
) , in all the world, is an extremely rare surname. The family name Sian-Chin is habitual in Northern America, particularly the United States, where it is an extremely rare surname. Parts of the name also exists independently as a last name Sian, and a last name Chin.
| VARIANT | COUNTRY |
|---|---|
| Sian-Chin | United States |