Family name Dettwiler (Dettwiler 
) , in the entire world, is quite a rare cognomen. The last name Dettwiler is characteristic of Switzerland, where it is quite a common surname, Sweden, where it is a rare surname, and Canada, where it is a very rare surname. In absolute terms, it most frequently occurs in Switzerland, the United States, and France. Very seldom, Dettwiler is the forename as well as the last name.
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| Dettwiler | Canada, Switzerland, United States, Poland, France |
| emil dettwiler Swiss architect (1865-1932), CH (b. 1865) |
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daniel dettwiler CH (b. 1974) |
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| monika dettwiler Swiss journalist and historian, CH (b. 1948) |
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| lukas dettwiler Swiss translator, CH (b. 1954) |
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| andreas dettwiler Swiss theologian & scholar, CH (b. 1960) |
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| peter dettwiler (b. 1950) |
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| walter dettwiler (b. 1960) |
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| a. c. dettwiler horse trainer |
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| annegret dettwiler researcher ORCID ID = 0000-0003-4007-6088 |
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| martina dettwiler researcher, ORCID id # 0000-0001-9404-7122 |
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| erik dettwiler CH (b. 1970) |
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| corinne dettwiler |
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