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Cognomen Karlens (Karlens
) , across the world, is an extremely rare family name. The last name Karlens is habitual in Nicaragua, where it is a very rare surname, the United Kingdom, where it is an extremely rare surname, and Venezuela. More prevalently, Karlens is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Karlens | Brazil, United States, United Kingdom, Nicaragua, Venezuela |