Around the world, 성윤 (성윤 
, Sung-Yoon 
, Seong-Yun 
) is quite a rare boy's forename. The first name 성윤 is characteristic of Eastern Asia, particularly South Korea, where it is quite a rare boy's name.
| VARIANT | COUNTRY |
|---|---|
| 성윤 | South Korea |
| Sung-Yoon | Canada, South Korea, United States |
| Seong-Yun | China, United States |
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김성윤 South Korean television director, KR (b. 1976) |
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손성윤 South Korean television and film actress, KR (b. 1984) |
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| 박성윤 South Korean military personnel, KR (b. 1957) |
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| 오성윤 Korean animation film director, KR (b. 1963) |
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| 방성윤 South Korean basketball player (1983-), KR (b. 1983) |
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| 조성윤 South Korean actor, KR (b. 1985) |
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| 김성윤 South Korean baseball player, born 1991, KR (b. 1991) |
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| 정성윤 KR (b. 1983) |
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| 구성윤 South Korean association football player, KR (b. 1994) |
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| 김성윤 KR (b. 1984) |
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| 김성윤 South Korean baseball player (1999-), KR (b. 1999) |
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