Throughout the world, 재환 (재환 
, Jaehwan 
, Jae-Hwan 
) is quite a rare predominantly boy's, but very seldom female first name. The given name 재환 is characteristic of Eastern Asia, particularly South Korea, where it is quite a rare predominantly masculine, but very seldom feminine name. Much less frequently, 재환 is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| 재환 | South Korea |
| Jaehwan | South Korea, Malaysia, China, Indonesia, United States |
| Jae-Hwan | Canada, United States, South Korea |
| 김재환 Korean government official (b. 1884) |
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| 안재환 KR (b. 1898) |
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곽재환 KR (b. 1952) |
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| 정재환 KR (b. 1906) |
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| 이재환 baseball player (1941-), KR (b. 1941) |
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김재환 South Korean singer, KR (b. 1996) |
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신재환 South Korean artistic gymnast, KR (b. 1998) |
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| 조재환 South Korean politician, KR (b. 1949) |
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| 가재환 KR (b. 1940) |
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| 정재환 South Korean comedian and actor, KR (b. 1961) |
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| 심재환 KR (b. 1958) |
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| 권재환 South Korean film actor, KR (b. 1970) |
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| 노재환 KR (b. 1961) |
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| 안재환 South Korean actor (1972-2008), KR (b. 1972) |
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| 최재환 South Korean film actor, KR (b. 1983) |
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