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Family name Rattanawan (รัตนาวรรณ , รัตนวรรณ
, Rattanawan
) , throughout the world, is quite a rare last name. The surname Rattanawan is characteristic of Thailand, where it is quite a rare surname, Myanmar, where it is a very rare surname, and Australia. Not in comparison with a country's population, it is the most numerous in Thailand, Myanmar, and the United States. Likewise, Rattanawan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| รัตนวรรณ, รัตนาวรรณ, รัตนวัน | Thailand |
| Rattanawan | Myanmar, Australia, United States, Thailand, Germany |
รัตนวรณ์, รัตนวรรณ์, รัตนาวรรณ์, and รัตนาวัลย์