Worldwide, Gaelen (Gaelen 
) is a rare epicene first name. The given name Gaelen is habitual in Northern America, particularly the United States, where it is a very rare gender-neutral name. Much less frequently, Gaelen is the last name as well as the forename.
| VARIANT | COUNTRY |
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| Gaelen | Belgium, Australia, United States, Canada, Netherlands |
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gaelen foley American writer, US (b. 1973) |
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| gaelen gilliland American actress, US |
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| gaelen guzman researcher ORCID ID = 0000-0002-7696-6034 |
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| gaelen p adam researcher |
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| gaelen marsden researcher |
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| gaelen t hess researcher |
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| gaelen stanford-moore researcher (ORCID 0000-0002-2247-8000) |
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