Around the world, 성은 (성은 
, Seongeun 
, Sung-Eun ) is quite a rare epicene first name. The given name 성은 is characteristic of South Korea, where it is quite a rare epicene name, and the United States, where it is an extremely rare epicene name. Very seldom, 성은 is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| 성은 | South Korea |
| Seongeun | China, South Korea, Malaysia, United States, Canada |
| Sung-Eun | Canada, South Korea, United States |
| Seong-Eun | Canada, United States |
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김성은 South Korean military personnel (1924-2007), KR (b. 1924) |
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김성은 South Korean actress (1983), KR (b. 1983) |
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유성은 South Korean singer, KR (b. 1989) |
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김성은 South Korean actress, KR (b. 1991) |
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최성은 South Korean actress, KR (b. 1996) |
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| 김성은 South Korean water polo player, KR (b. 1967) |
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| 김성은 South Korean comedian, KR (b. 1968) |
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| 임성은 South Korean singer, KR (b. 1971) |
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| 모성은 KR (b. 1964) |
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| 김성은 South Korean field hockey player, KR (b. 1976) |
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| 김성은 South Korean basketball player (1976-), KR (b. 1976) |
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| 김성은 South Korean singer, KR |
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| 권성은 South Korean voice actress, KR |
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| 성은 South Korean actress and singer, KR (b. 1981) |
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| 노성은 South Korean actress, KR (b. 1983) |
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