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Surname Khumnoi (Khumnoi ) , throughout the world, is a rare family name. The family name Khumnoi is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Khumnoi | Thailand |
Vina, Ukrit, Bualai, Nutcha, Purinut, Nudtapat, Krittivut, Klintana, Peeravut, Rapeepat, Vachirapan, Pattamavadee, Pitchayaporn, and Rungarunwadee