Family name Theuer (Theuer 
) , in the world, is quite a rare surname. The last name Theuer is habitual in Austria, where it is quite a rare surname, Germany, and Czechia. In absolute terms, it is commonest in Germany, Austria, and the United States. Very seldom, Theuer is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Theuer | Germany, Czechia, Austria, United States, Poland |
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alfred theuer Polish figure skater, PL (b. 1892) |
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| julius theuer (b. 1856) |
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adolf theuer SS Officer, CZ (b. 1920) |
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| max theuer Austrian architect, art historian, archaeologist and architectural historian, AT (b. 1878) |
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| erwin theuer Austrian farmer, prehistorian and local historian, DE (b. 1887) |
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| franz theuer Austrian historian, AT (b. 1922) |
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| jan theuer (b. 1915) |
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| dieter theuer DE (b. 1933) |
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| gabriele theuer DE (b. 1965) |
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| renata valladão theuer researcher |
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| susanne theuer |
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| wolfgang theuer |
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| livia theuer |
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| timon theuer Austrian long-distance runner, AT (b. 1994) |
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