Last name Koetz (Коц 
, Koetz 
) , across the world, is quite a rare surname. The family name Koetz is habitual in Ukraine, where it is quite a rare surname, Luxembourg, and Belarus. Not in comparison with a country's population, it is the most numerous in Ukraine, Russia, and Brazil.
| VARIANT | COUNTRY |
|---|---|
| Коц | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
| Koetz | Brazil, Austria, United States, Germany, South Africa |
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joseph koetz Luxembourgish footballer (1897-1976), LU (b. 1897) |
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| arthur koetz German writer (1896-1953), DE (b. 1896) |
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| karl koetz German officer and Knight's Cross recipient, DE (b. 1908) |
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| edgar koetz Brazilian painter (1914-1969), BR (b. 1914) |
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| joachim koetz german researcher (b. 1956) |
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| gabriele koetz DE (b. 1947) |
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| joachim koetz researcher |
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| matthew t. koetz Ph.D. University of Nebraska-Lincoln 2005 |
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| stephanie charlotta koetz German actress, DE (b. 1986) |
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