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Cognomen Omkaeo (Omkaeo ) , in the entire world, is a very rare family name. The cognomen Omkaeo is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Omkaeo | Thailand |
Khwan, Orasa, Wirayut, Gaewalee, and Natthaphon