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Globally, Usasawan (อุษาวรรณ , Usasawan
) is a very rare principally female, but very infrequently masculine first name. The first name Usasawan is habitual in South-eastern Asia, particularly Thailand, where it is a rare predominantly female, but very infrequently male name.
| VARIANT | COUNTRY |
|---|---|
| อุษาวรรณ, Usasawan | Thailand |
Hopokkasab, Khunsoda, Tonwongthawat, Wattananusit, and Srimueangkaew