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Family name Prangnoi (Prangnoi ) , throughout the world, is a rare surname. The cognomen Prangnoi is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Prangnoi | Thailand |
Aroon, Suchao, Prakob, Prapit, Sasipat, Piyarit, Piyapit, Thanaon, Suwinnaphat, Songsamorn, and Thanyawonaporn