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Cognomen Kaorojanasin (Kaorojanasin ) , worldwide, is a very rare family name. The cognomen Kaorojanasin is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kaorojanasin | Thailand |
Pairin, Kundecha, Parnrada, and Saranyapong