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Cognomen Piyasan (Piyasan
, ปิยศานติ์
) , globally, is a very rare surname. The cognomen Piyasan is habitual in Thailand, where it is a very rare surname, Philippines, where it is an extremely rare surname, and India. More prevalently, Piyasan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Piyasan | India, Philippines, Thailand |
| ปิยศานติ์ | Thailand |