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Surname Ruangkhao (Ruangkhao , รวงข้าว) , in the entire world, is an extremely rare cognomen. The cognomen Ruangkhao is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Much more prevalently, Ruangkhao is the forename as well as the last name.
VARIANT | COUNTRY |
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Ruangkhao | Thailand |