Across the world, 재성 (재성 
, Jaeseong 
, Jae-Sung ) is quite a rare primarily masculine, but scarcely female first name. The given name 재성 is habitual in Eastern Asia, particularly South Korea, where it is quite a rare primarily male, but scarcely girly name. Much less frequently, 재성 is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| 재성 | South Korea |
| Jaeseong | China, South Korea, Canada, United States, Czechia |
| Jae-Sung | United States |
|
정재성 South Korean badminton player, KR (b. 1982) |
|
|
김재성 South Korean footballer, KR (b. 1983) |
|
| 양재성 South Korean actor, KR (b. 1945) |
|
|
| 유재성 KR (b. 1941) |
|
|
| 황재성 KR (b. 1944) |
|
|
| 김재성 South Korean theologian, KR (b. 1955) |
|
|
| 홍재성 KR (b. 1946) |
|
|
| 이재성 KR (b. 1952) |
|
|
| 최재성 South Korean actor, KR (b. 1964) |
|
|
| 정재성 South Korean film actor, KR (b. 1970) |
|
|
| 장재성 KR (b. 1963) |
|
|
| 장재성 South Korean Olympic wrestler, KR (b. 1975) |
|
|
| 박재성 KR (b. 1970) |
|
|
| 김재성 North Korean politician, KP |
|
|
| 이재성 KR (b. 1970) |
|