Last name Su Xian (Su Xian 
) , around the world, is a very rare surname. The family name Su Xian is characteristic of South-eastern Asia, particularly Singapore, where it is a rare surname, and Malaysia, where it is a very rare surname. More frequently, Su Xian is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Su Xian | Costa Rica, Malaysia, Singapore, United States, Canada |