Last name Kopp (Kopp 
, コップ 
, Копп 
) , across the world, is a common cognomen. The last name Kopp is habitual in Western Europe, particularly Germany, where it is quite a common surname, Switzerland, and Austria. Measured by absolute frequency, it is commonest in Germany, the United States, and France. Much less frequently, Kopp is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Kopp | Austria, Germany, France, United States, Switzerland |
| コップ | Japan |
| Копп | Kazakhstan, Russia, Ukraine, Kyrgyzstan |
| Коп | Uzbekistan, Belarus, Armenia, Kyrgyzstan |
| wilhelm kopp Swiss physician, CH (b. 1461) |
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| georg kopp German painter and draftsman, DE (b. 1570) |
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| johann kopp (b. 1562) |
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| georg kopp German composer (d. 1666), DE (b. 1610) |
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| paulus kopp (b. 1640) |
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| fridolin kopp Swiss monk (1691-1757), CH (b. 1691) |
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| johann adam kopp (b. 1698) |
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johann heinrich kopp German naturalist, DE (b. 1777) |
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| carl philipp kopp German jurist and historian, DE (b. 1728) |
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joseph kopp German classical philologist, DE (b. 1788) |
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joseph eutych kopp Swiss historian (1793-1866), CH (b. 1793) |
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| johannes kopp DE (b. 1734) |
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| karl josef kopp CH (b. 1741) |
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| ulrich friedrich kopp German jurist (1762-1834), DE (b. 1762) |
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hermann kopp German chemist (1817-1892), DE (b. 1817) |
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