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Cognomen Fehn (Фен
, Фэн
, Fehn
) , worldwide, is quite a rare surname. The cognomen Fehn is habitual in Germany, where it is quite a rare surname, Norway, and Austria, where it is a rare surname. Not in comparison with a country's population, this name is the most popular in Germany, the United States, and Russia. Much less frequently, Fehn is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Фен | Ukraine, Kazakhstan, Armenia, Russia, Kyrgyzstan |
| Фэн | Kazakhstan, Armenia, Belarus, Russia, Kyrgyzstan |
| Fehn | United States, Indonesia, Norway, Germany, Brazil |