Family name Unkelbach (Unkelbach 
) , across the world, is quite a rare surname. The family name Unkelbach is characteristic of Germany, where it is quite a rare surname, Austria, where it is a rare surname, and Poland, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in Germany, the United States, and Poland. Much less frequently, Unkelbach is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Unkelbach | Austria, Germany, France, Poland, United States |
| peter unkelbach (b. 1870) |
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| helmut unkelbach DE (b. 1910) |
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| christian unkelbach researcher |
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| helmut unkelbach Ph.D. Ludwig-Maximilians-Universität München 1938 |
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| jan unkelbach researcher ORCID ID = 0000-0002-4275-990X |
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| mira unkelbach DE (b. 1984) |
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Mr, Maria, Mario, Marco, Maike, Molly, Mirko, Sarah, Andre, Achim, Hoby, Chris, Boris, Brian, Karin, Karen, Katja, Kasey, Kevin, Klaus, Peter, Bernd, Hans, Nina, Toni, Ms, Kay, Roy, Jan, Eva, Uwe, Marc, Mary, Mira, Sara, Sven, Beth, Karl, Kurt, Paul, Dane, Dirk, Jane, Jana, Jojo, Theo, Ruben, and David