Cognomen Kosanke (Kosanke 
) , all over the world, is quite a rare family name. The family name Kosanke is characteristic of Germany, where it is a rare surname, Brazil, and the United States.
| VARIANT | COUNTRY |
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| Kosanke | Germany, Australia, United States, Greece, Brazil |
| robert m. kosanke botanist (1917-1996), US (b. 1917) |
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sören kosanke German politician, DE (b. 1977) |
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| kurt kosanke German engineer (b. 1945) |
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| christoph kosanke Dr. rer. pol. Freie Universität Berlin 2015 |
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| sven kosanke researcher |
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| bärbel kosanke |
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| michael kosanke |
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| tatjana kosanke |
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