In the world, Seong-Jae (성재 
, Seong-Jae 
) is quite a rare male first name. The forename Seong-Jae is characteristic of Eastern Asia, particularly South Korea, where it is quite a rare masculine name. Parts of the name also exists independently as a last name Seong, and a first name Jae.
| seong-jae kim researcher ORCID 0000-0002-9793-3186 |
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| seong-jae kim researcher (ORCID 0000-0002-4143-3959) |
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| jang seong-jae South Korean footballer (b. 1995) |
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