Cognomen Dietrich (Dietrich 
, Wytrych 
, Дитрих 
) , throughout the world, is a common surname. The surname Dietrich is habitual in Western Europe, particularly Germany, where it is quite a common surname, Liechtenstein, and Switzerland (explore the name in all countries). Not in comparison with a country's population, it is the most numerous in Germany, the United States, and France. Likewise, Dietrich is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dietrich | Germany, Switzerland, France, Brazil, United States |
| Wytrych | Poland, United States |
| Дитрих | Kazakhstan, Ukraine, Kyrgyzstan, Belarus, Russia |
| דיטריך | Israel |
Dederichs, Diderich, Didier, Didrich, Didrik, Diederich, Diederichs, Diedrich, Diedrichs, Diedtrich, Dieter, Dieterich, Dieterichs, Dieterici, Dietherich, Diethrich, Dietterich, Diettrich, Dietz, Dirk, Diterich, Ditterich, Dittrich, Diétrich, Teodorico, Terry, Theoderich, Theodorich, Thiede, Thiel, Thierry, Till, Дидрик, Дидье, Диетрич, Дитер, Дідьє, Діетріч, Дітер, Дітріх, Т'Єррі, Тери, Терри, Террі, Тьерри, Тьєррі, דידייה, טרי, تری, تيري, تييري, ديتر, テリー, ディディエ, 泰利, 泰瑞, 特里, and 迪特
| von cuba dietrich (b. 1430) |
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| sixt dietrich (1493-1548), DE (b. 1493) |
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| henrich dietrich DE (b. 1512) |
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| georg dietrich German composer (1525-1598), DE (b. 1525) |
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| nicolaus dietrich (b. 1517) |
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| wendel dietrich German architect, DE (b. 1535) |
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| balthasar dietrich DE (b. 1527) |
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| philipp dietrich DE (b. 1544) |
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| demange dietrich FR (b. 1549) |
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| alexander philipp dietrich (b. 1550) |
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| georg dietrich German Münzwardein (1560-1602) (b. 1560) |
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johann peter dietrich politician of Rapperswil SG, Switzerland, 1611–1681 (b. 1611) |
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| franz dietrich DE (b. 1557) |
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dominique dietrich politician (1620-1692), FR (b. 1620) |
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| johann dietrich DE (b. 1578) |
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