Across the world, 성동 (성동 
, Seongdong 
, Sung-Dong 
) is a rare masculine given name. The forename 성동 is characteristic of Eastern Asia, particularly South Korea, where it is quite a rare boy's name.
| VARIANT | COUNTRY |
|---|---|
| 성동 | South Korea |
| Seongdong | Australia, United States |
| Sung-Dong | Cambodia |
| Seong-Dong | United States |
| 배성동 South Korean politician, KR (b. 1936) |
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백성동 South Korean association football player, KR (b. 1991) |
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| 김성동 Korean writer, KR (b. 1947) |
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| 김성동 South Korean politician, KR (b. 1954) |
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| 이성동 KR (b. 1981) |
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