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Surname Pichaiyan (Pichaiyan
, ปิชัยญาณ
) , across the world, is a rare last name. The cognomen Pichaiyan is habitual in Thailand, where it is a very rare surname, Australia, and Malaysia. Not in comparison with a country's population, it is commonest in Thailand, India, and Australia. Much less frequently, Pichaiyan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Pichaiyan | Singapore, Malaysia, India, Australia, Thailand |
| ปิชัยญาณ | Thailand |