All over the world, Yoonsun (Yoonsun 
) is quite a rare dominantly girly, but seldom male first name. The given name Yoonsun is characteristic of South Korea, where it is quite a rare predominantly girly, but very seldom boy's name, and the United States, where it is an extremely rare epicene name.
| VARIANT | COUNTRY |
|---|---|
| Yoonsun | China, South Korea, Nigeria, United States, Canada |
| yoonsun jang researcher |
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| yoonsun mo researcher |
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| yoonsun bae researcher |
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| yoonsun chung researcher (ORCID 0000-0002-2151-1470) |
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| yoonsun han researcher |
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| yoonsun choi researcher |
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| yoonsun yoon researcher |
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