Surname Federau (Federau 
) , in the entire world, is quite a rare family name. The last name Federau is characteristic of Paraguay, where it is quite a rare surname, Germany, where it is a rare surname, and Denmark. Not in comparison with a country's population, it is commonest in Germany, Paraguay, and Canada.
| VARIANT | COUNTRY |
|---|---|
| Federau | Canada, Paraguay, United States, Germany, Brazil |
| friedrich federau DE (b. 1755) |
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| ferdinand federau (b. 1880) |
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| wolfgang federau PL (b. 1894) |
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| bernt federau PL (b. 1930) |
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| juergen federau chess player (b. 1949) |
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| petra federau DE (b. 1969) |
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| christian federau researcher |
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| ricky federau Canadian cyclist, CA (b. 1981) |
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| ernst federau DE |
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