Family name Kiefel (Kiefel 
, Кифель 
) , all over the world, is quite a rare surname. The surname Kiefel is characteristic of Germany, where it is quite a rare surname, Kazakhstan, where it is a rare surname, and Australia. Not in comparison with a country's population, it is the most numerous in Germany, the United States, and Kazakhstan. Much less frequently, Kiefel is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kiefel | Germany, Australia, United States, Argentina, France |
| Кифель | Kazakhstan, Russia, Ukraine |
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susan kiefel Australian judge; Chief Justice of Australia, AU (b. 1954) |
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| josef kiefel German resistance member, DE (b. 1909) |
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ron kiefel American racing cyclist, US (b. 1960) |
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| russell kiefel Australian actor, AU (b. 1951) |
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| jörg kiefel DE (b. 1966) |
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| milton j kiefel researcher |
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| martin kiefel Ph.D. ETH Zürich 2017 |
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| volker kiefel DE |
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