Around the world, Diethart (Diethart 
) is a rare male given name. The first name Diethart is characteristic of Western Europe, particularly Germany, where it is a rare boy's name. Also, Diethart is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Diethart | United States, Spain, Austria, Germany, Canada |
| diethart kerbs German journalist, DE (b. 1937) |
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| diethart breipohl German banker, DE (b. 1939) |
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| diethart zielinski German jurist and university teacher, DE (b. 1941) |
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| diethart krebs (b. 1937) |
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| diethart kahlert DE (b. 1941) |
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| diethart matthies German botanist, DE (b. 1957) |
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| diethart schmid researcher |
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| diethart plett director |
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