Cognomen Unterberger (Unterberger 
, Унтербергер 
) , all over the world, is quite a rare surname. The cognomen Unterberger is habitual in Western Europe, particularly Austria, where it is quite a common surname, Germany, where it is a rare surname, and Switzerland. Not in comparison with a country's population, it is the most numerous in Austria, Germany, and the United States. Very seldom, Unterberger is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Unterberger | Germany, Austria, Italy, United States, Brazil |
| Унтербергер | Kazakhstan, Russia, Ukraine |
| christoph unterberger (b. 1668) |
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cristopher unterberger Austrian-Italian painter (1732-1798), IT (b. 1732) |
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leopold freiherr von unterberger (1734-1818), AT (b. 1734) |
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| francesco sebaldo unterberger Austrian painter (1706-1776), IT (b. 1706) |
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| josef anton unterberger (b. 1703) |
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| joseph unterberger AT (b. 1731) |
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| ignaz unterberger Austrian painter, AT (b. 1748) |
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heinrich friedrich simon unterberger Russian veterinarian and professor, LV (b. 1810) |
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paul simon unterberger RU (b. 1842) |
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reinhold unterberger German author (1853-1920), DE (b. 1853) |
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| franz unterberger IT (b. 1794) |
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| josef unterberger AT (b. 1818) |
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| franz richard unterberger painter from Austria, AT (b. 1838) |
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| alois unterberger (b. 1832) |
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| johann chrysostomus unterberger AT (b. 1836) |
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