Around the globe, 성주 (성주 
, Sung-Joo 
, Seong-Joo ) is quite a rare mostly boy's, but seldom feminine first name. The first name 성주 is characteristic of Eastern Asia, particularly South Korea, where it is quite a rare mostly male, but infrequently female name.
| VARIANT | COUNTRY |
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| 성주 | South Korea |
| Sung-Joo | South Korea, Canada, United States, United Kingdom |
| Seong-Joo | United States |
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김성주 South Korean politician, KR (b. 1922) |
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김성주 Chief Visionary Officer, KR (b. 1956) |
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| 이성주 South Korean politician, KR (b. 1911) |
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김성주 South Korean announcer, presenter, KR (b. 1972) |
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| 김성주 KR (b. 1924) |
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김성주 South Korean singer and actor, KR (b. 1994) |
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| 정성주 South Korean screenwriter, KR (b. 1956) |
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| 임성주 South Korean baseball player, KR (b. 1965) |
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| 유성주 South Korean actor, born 1973, KR (b. 1973) |
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| 한성주 South Korean model, KR (b. 1974) |
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| 조성주 KR (b. 1978) |
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| 문성주 South Korean baseball player, KR (b. 1997) |
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| 조성주 South Korean pro gamer, KR (b. 1997) |
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| 김성주 association football player, KR (b. 1998) |
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