Family name Sonderegger (Sonderegger 
, Зондереггер 
) , across the world, is quite a common cognomen. The last name Sonderegger is habitual in Western Europe, particularly Switzerland, where it is quite a common surname, Liechtenstein, and Austria, where it is quite a rare surname. In absolute terms, it most frequently occurs in Switzerland, Austria, and the United States. Very seldom, Sonderegger is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Sonderegger | Uruguay, Switzerland, Austria, United States, Zambia |
| Зондереггер | Russia, Ukraine |
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jakob laurenz sonderegger Swiss physician (1825-1896), CH (b. 1825) |
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johann conrad sonderegger President of the Swiss municipality, Cantonal Council, Government Council and National Council of the Canton of Appenzell Ausserrhoden (1834-1899), CH (b. 1834) |
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carl justin sonderegger Swiss politician (1842-1906), CH (b. 1842) |
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emil sonderegger Swiss general (1868-1934), CH (b. 1868) |
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| johann jakob sonderegger (b. 1809) |
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| johann konrad sonderegger politician, CH (b. 1834) |
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| johann jakob sonderegger politician, CH (b. 1838) |
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| albin sonderegger (b. 1838) |
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| conrad sonderegger (1858-1938), CH (b. 1858) |
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| jacques ernst sonderegger Swiss painter (1882-1956), CH (b. 1882) |
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| albin sonderegger (b. 1873) |
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| hans konrad sonderegger Swiss politician (1891-1944), CH (b. 1891) |
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| conrad sonderegger FR (b. 1888) |
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| rené sonderegger Swiss politician (1899-1965), CH (b. 1899) |
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| august sonderegger Swiss cross-country skier, CH (b. 1911) |
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