All around the world, Calen (Calen 
) is a rare epicene forename. The first name Calen is habitual in the United States, where it is a rare gender-neutral name, Australia, where it is a rare male name, and Tanzania, where it is a very rare girly name. Very seldom, Calen is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Calen | Tanzania, Myanmar, France, United States, Romania |
| calen martin legaspi businessman, PH |
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| schotto calen German theologian, priest, LV |
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| calen j. leverant researcher ORCID ID = 0000-0003-1343-2841 |
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| calen a steiner researcher (ORCID 0000-0002-1964-010X) |
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| calen maiava-paris New Zealand actor, NZ (b. 1983) |
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| calen mackenzie Australian television actor, AU (b. 1996) |
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| calen james taylor (born 2008) |
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