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Cognomen Nitidisayaroj (Nitidisayaroj ) , throughout the world, is a very rare family name. The cognomen Nitidisayaroj is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Nitidisayaroj | Thailand |
Chairoj, Rukvarintr, Thanyaras, and Thanyarus