Cognomen เปี่ยน (Pian 
, เปี่ยน) , around the globe, is a common last name. The surname เปี่ยน is habitual in South-eastern Asia, particularly Malaysia, where it is quite a rare surname, Brunei, and Indonesia. Measured by absolute frequency, it is commonest in Indonesia, China, and Malaysia. Also, เปี่ยน is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Pian | Italy, Indonesia, Malaysia, China, India |