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Family name Kawnoi (Kawnoi ) , all over the world, is a very rare cognomen. The family name Kawnoi is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kawnoi | Thailand |
Anuwat, Teerawat, Tussanai, Patchanon, and Phatchanon