Cognomen Hanhart (Hanhart 
) , all around the world, is a rare surname. The family name Hanhart is habitual in Switzerland, where it is quite a rare surname, Estonia, where it is a rare surname, and Netherlands. Measured by absolute frequency, it is the most numerous in Switzerland, Germany, and the United States.
| VARIANT | COUNTRY |
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| Hanhart | Netherlands, France, Germany, United States, Switzerland |
| hans ulrich hanhart CH (b. 1623) |
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| johannes hanhart swiss politician (1744-1806) (b. 1744) |
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| johann ulrich hanhart swiss politician (1773-1835), CH (b. 1773) |
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| rudolf hanhart Swiss educationist, pastor and university teacher (1780-1856), CH (b. 1780) |
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| johannes hanhart (b. 1773) |
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| jean hanhart (1803-1875), CH (b. 1803) |
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| nicholas hanhart British printmaker, active 1846-1855 (b. 1815) |
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| michael hanhart 1830 - 1884 Also known as: M.H.Jr. http://viaf.org/viaf/91424237 (b. 1830) |
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| ernst hanhart Swiss geneticist and internist (1891-1973), CH (b. 1891) |
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| dorette hanhart (b. 1890) |
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| robert hanhart German evangelical theologian, DE (b. 1925) |
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| dieter hanhart Swiss educationist (1929-2017), CH (b. 1929) |
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| rudolf hanhart (b. 1924) |
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| karel hanhart (b. 1927) |
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| c. hanhart researcher |
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