Family name Ortwein (Ortwein 
) , in the entire world, is quite a rare cognomen. The last name Ortwein is characteristic of Germany, where it is quite a rare surname, Austria, where it is a rare surname, and Canada. Measured by absolute frequency, the name is most common in Germany, the United States, and Canada. Much less frequently, Ortwein is the forename as well as the last name.
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| Ortwein | Austria, Germany, Poland, Canada, United States |
| johannes ortwein DE (b. 1785) |
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| august ortwein Austrian architect, AT (b. 1836) |
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| magnus ortwein IT (b. 1845) |
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| henryk ortwein (b. 1890) |
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| margarethe ortwein Austrian historian, AT (b. 1912) |
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| carlernst ortwein German composer and pianist (1916-1986), DE (b. 1916) |
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| luise ortwein DE (b. 1906) |
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| bill ortwein American attorney and politician (1940-2019), US (b. 1940) |
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| jörg maria ortwein DE (b. 1961) |
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| rafal ortwein researcher |
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| siggi ortwein |
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| mike ortwein German ice hockey player, DE (b. 1993) |
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