Cognomen Friederichs (Friederichs 
) , across the world, is quite a rare last name. The last name Friederichs is characteristic of Western Europe, particularly Germany, where it is quite a rare surname, Netherlands, and Belgium, where it is a rare surname. Measured by absolute frequency, it is commonest in Germany, the United States, and Netherlands.
| VARIANT | COUNTRY |
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| Friederichs | Germany, United States, Argentina, Brazil, Netherlands |
| anna-maria friederichs (1665-1736) (b. 1665) |
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| jean-parfait friederichs French soldier and officer, FR (b. 1773) |
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karl friederichs German classical archaeologist (1831-1871), DE (b. 1831) |
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| hulda friederichs Journalist and writer (1856/7–1927), DE (b. 1856) |
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| karl friederichs (b. 1863) |
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| karl friederichs (b. 1863) |
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| karl wilhelm friederichs DE (b. 1864) |
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| karl friederichs German entomologist (1878–1969), DE (b. 1878) |
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rolf friederichs German painter (1937–2011), DE (b. 1937) |
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| carl friederichs DE (b. 1879) |
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| william friederichs American politician – Minnesota -- "Wm." House 1933-36 (District 49), US (b. 1893) |
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| paul friederichs (b. 1903) |
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| heinz f. friederichs (b. 1905) |
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| marcel friederichs Belgian politician (1926-2003), BE (b. 1926) |
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| ellen friederichs (b. 1929) |
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