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Worldwide, Clein (Clein
) is a rare mostly girly, but infrequently masculine forename. The first name Clein is habitual in Tanzania, where it is a rare female name, and Philippines, where it is a very rare epicene name. More prevalently, Clein is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Clein | Tanzania, Brazil, United States, United Kingdom, Kenya |