Last name Käthner (Käthner 
) , worldwide, is a rare surname. The family name Käthner is characteristic of Western Europe, particularly Germany, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Käthner | Germany |
| ivo käthner researcher (ORCID 0000-0003-0528-907X) |
|
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| armin käthner |
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