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Cognomen ฤทธิญาณ (ฤทธิญาณ , Rittiyan , Ritthiyan ) , in all the world, is a rare last name. The family name ฤทธิญาณ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
VARIANT | COUNTRY |
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ฤทธิญาณ, Rittiyan, Ritthiyan | Thailand |