Cognomen 성 (星 
, Saint 
, 晟 , and others...) , in the entire world, is a widespread last name. The family name 성 is habitual in South Korea, where it is a common surname, British Virgin Islands, and Cayman Islands (explore the name in all countries). Measured by absolute frequency, this name is the most popular in China, South Korea, and Malaysia. Also, 성 is the forename as well as the last name.
| VARIANT | COUNTRY |
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| 性, 晟, 星 | China |
| Saint | Myanmar, India, Democratic Republic of the Congo, Malaysia, China |
| Sung | Myanmar, India, Indonesia, Malaysia, China |
| 성 | South Korea |
| 성삼문 Korean politician, KR (b. 1418) |
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| 이성 (b. 1458) |
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| 의빈 성씨 King Jeongjo's consort of Joseon (1753-1786), KR (b. 1753) |
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| 성주식 politician, KP (b. 1891) |
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| 성원경 South Korean politician, KR (b. 1894) |
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| 성득환 South Korean politician, KR (b. 1898) |
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성낙인 South Korean academic, KR (b. 1950) |
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| 성시백 Korean revolutionary, KP (b. 1905) |
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| 성낙서 South Korean academic, KR (b. 1905) |
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| 성정수 KR (b. 1899) |
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성석제 Korean writer, KR (b. 1960) |
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성지훈 South Korean singer, KR (b. 1962) |
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성윤모 South Korean politician, KR (b. 1963) |
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성일환 KR (b. 1954) |
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성봉수 South Korean poet, KR (b. 1964) |
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