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Cognomen Ratnakorn (รัตนากรณ์ , Ratnakorn ) , worldwide, is a very rare surname. The family name Ratnakorn is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. More frequently, Ratnakorn is the forename as well as the last name.
VARIANT | COUNTRY |
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Ratnakorn, รัตนากรณ์ | Thailand |
Supamo, and Piyasirisorost