Family name Hwan (Hwan 
, 환 , هوان 
) , in the world, is a common last name. The last name Hwan is characteristic of Kazakhstan, where it is quite a common surname, Kyrgyzstan, where it is quite a rare surname, and Malaysia. Not in comparison with a country's population, it is the most numerous in Russia, South Korea, and Kazakhstan. Much less frequently, Hwan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Hwan | South Korea, Malaysia, China, Indonesia, Myanmar |
| 환 | South Korea |
| هوان | Yemen, Morocco, Palestinian Territory, Iraq |
| Хван | Kyrgyzstan, Russia, Kazakhstan, Ukraine, Uzbekistan |
| hwan kwon do researcher |
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| hwan jun jae researcher |
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| hwan ku kang researcher |
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| hwan soo kim researcher (ORCID 0000-0002-5952-7849) |
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| hwan sub lim researcher (ORCID 0000-0001-8546-2578) |
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| hwan myung lee researcher (ORCID 0000-0003-3829-7893) |
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| hwan bae researcher |
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| hwan geun choi researcher |
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| hwan jung lim researcher |
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| hwan seo lee researcher |
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| hwan il kim researcher (ORCID 0000-0002-0165-5506) |
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| hwan won choi researcher (ORCID 0000-0003-4838-8123) |
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| hwan bong chang researcher |
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| hwan hur researcher |
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| hwan ui jung researcher |
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