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Cognomen Flenner (Flenner
) , all over the world, is a rare last name. The cognomen Flenner is habitual in Germany, where it is a rare surname, Austria, and Sweden. Measured by absolute frequency, it is commonest in the United States, Germany, and France.
| VARIANT | COUNTRY |
|---|---|
| Flenner | France, Austria, United States, Argentina, Germany |