Last name Cottier (Cottier 
, Cotier 
) , in all the world, is quite a rare cognomen. The surname Cottier is habitual in Guernsey, where it is quite a common surname, Isle of Man, where it is quite a rare surname, and Switzerland. Not in comparison with a country's population, it most frequently occurs in France, Switzerland, and the United States. Much less frequently, Cottier is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Cottier | Switzerland, France, Australia, United States, United Kingdom |
| Cotier | Mexico, France, United States, United Kingdom, Argentina |
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françois cottier FR (b. 1780) |
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| charles cottier FR (b. 1749) |
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maurice cottier French artist, 1822-1881, FR (b. 1822) |
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| daniel cottier British cabinetmaker, GB (b. 1837) |
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georges cottier Catholic cardinal (1922-2016), CH (b. 1922) |
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| charles percy cottier New Zealand commercial photographer (1873-1950), NZ (b. 1873) |
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chuck cottier American baseball player and coach, US (b. 1936) |
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marius cottier Swiss politician (1937-2019), CH (b. 1937) |
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| raphaël cottier (1891-1974), CH (b. 1891) |
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anton cottier Swiss politician (1943-2006), CH (b. 1943) |
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| louis cottier Swiss artisan (1894-1966), CH (b. 1894) |
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| henry cottier Swiss politician (1897-1973), CH (b. 1897) |
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| albert cottier (1900-1979), CH (b. 1900) |
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| fernand cottier Swiss politician (1901-1985), CH (b. 1901) |
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| william cottier New Zealand entomologist (1905–1964), NZ (b. 1905) |
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