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Family name Usasawan (อุษาวรรณ , Usasawan ) , globally, is an extremely rare last name. Much more prevalently, Usasawan is the forename as well as the last name.
VARIANT | COUNTRY |
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อุษาวรรณ, Usasawan | Thailand |
Hopokkasab, Khunsoda, Tonwongthawat, Wattananusit, and Srimueangkaew