Cognomen Staudacher (Staudacher 
) , worldwide, is quite a rare last name. The surname Staudacher is characteristic of Western Europe, particularly Austria, where it is quite a rare surname, Germany, and Switzerland. Not in comparison with a country's population, it is the most numerous in Germany, Austria, and the United States. Very seldom, Staudacher is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Staudacher | Germany, Austria, Italy, Switzerland, United States |
| michael staudacher (b. 1613) |
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| nikolaus staudacher DE (b. 1660) |
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| benedikt andreas staudacher DE (b. 1683) |
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| peter paul staudacher Austrian choir director and author, AT (b. 1757) |
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| joseph staudacher (b. 1782) |
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| josef staudacher (b. 1782) |
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| ignacij staudacher SI (b. 1831) |
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| vitus staudacher musician (1850-1925), DE (b. 1850) |
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| max staudacher (b. 1863) |
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| walter staudacher DE (b. 1871) |
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| jožef staudacher SI (b. 1876) |
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| paula staudacher (b. 1879) |
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| emil staudacher (1898-1977), CH (b. 1898) |
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| georg staudacher (b. 1898) |
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| walter staudacher DE (b. 1900) |
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