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Last name Amonthira (Amonthira ) , globally, is an extremely rare family name. Much more frequently, Amonthira is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Amonthira | Thailand |
Sutto, Nuanying, Chaiwong, Wimonsin, Thammakunaporn, and Phothiphanich