Globally, 성문 (성문 
, Seongmun , Sung-Moon) is a rare masculine forename. The given name 성문 is habitual in Eastern Asia, particularly South Korea, where it is quite a rare male name.
| VARIANT | COUNTRY |
|---|---|
| Seongmun, 성문 | South Korea |
| 송성문 KR (b. 1931) |
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| 곽성문 South Korean politician, KR (b. 1952) |
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| 최성문 KR (b. 1950) |
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| 백성문 KR (b. 1973) |
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| 이성문 KR (b. 1974) |
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| 조성문 KR |
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| 천성문 South Korean actor, KR (b. 1990) |
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| 송성문 South Korean baseball player, KR (b. 1996) |
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