Around the world, Jaeyun (Jaeyun 
) is a rare female given name. The first name Jaeyun is habitual in South Korea, where it is a rare feminine name, and the United States, where it is an extremely rare epicene name. Very seldom, Jaeyun is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Jaeyun | China, South Korea, Australia, United States, Italy |
| jaeyun moon researcher |
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| jaeyun yoo researcher (ORCID 0000-0002-2201-6199) |
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| jaeyun sung researcher |
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| jaeyun jung researcher (ORCID 0000-0002-0141-2715) |
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| jaeyun kim researcher |
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