Last name Gauchat (Gauchat 
) , worldwide, is quite a rare surname. The last name Gauchat is characteristic of Switzerland, where it is quite a rare surname, Argentina, and Australia, where it is a rare surname. In absolute terms, the name is most common in Argentina, the United States, and Switzerland. Very seldom, Gauchat is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Gauchat | Australia, Switzerland, United States, Argentina, France |
| gabriel gauchat FR (b. 1709) |
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| gabrielle gauchat FR (b. 1767) |
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louis gauchat Swiss linguist (1866-1942), CH (b. 1866) |
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| jeanette gauchat CH (b. 1871) |
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| pierre gauchat Swiss artist and graphic designer (1902-1956), CH (b. 1902) |
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| leon gauchat American basketball player, US (b. 1921) |
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| patrick gauchat CH (b. 1968) |
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| gordon gauchat researcher ORCID ID = 0000-0001-7231-2247, US |
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| maría elena gauchat researcher (ORCID 0000-0002-1141-5653) |
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| aline gauchat researcher |
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