Worldwide, Hae-In (해인 
, Hae-In 
) is a rare epicene first name. The first name Hae-In is habitual in Eastern Asia, particularly South Korea, where it is quite a rare epicene name. Parts of the name also exists independently as a first name Hae, and a last name In.
| hae-in lee researcher (ORCID 0000-0003-0221-2253) |
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| hae-in choi researcher |
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| hae-in lee researcher (ORCID 0000-0002-6064-5295) |
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| shin hae-in South Korean swimmer (b. 1989) |
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| hae-in kwon South Korean association football player, KR (b. 1998) |
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