Surname Cornier (Cornier 
) , all over the world, is quite a rare last name. The last name Cornier is characteristic of France, where it is quite a rare surname, Puerto Rico, and Bolivia. Not in comparison with a country's population, it is commonest in France, the United States, and Indonesia.
| VARIANT | COUNTRY |
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| Cornier | Indonesia, Bolivia, United States, Argentina, France |
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jacques le cornier de sainte-hélène FR (b. 1597) |
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pierre-robert le cornier de cideville French writer (1693-1776), FR (b. 1693) |
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| nestor cornier French politician (1847-1924), FR (b. 1847) |
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| fernande cornier French artist (b. 1888) |
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| vincent cornier GB (b. 1898) |
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| bruno cornier French politician, FR (b. 1961) |
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| irma cornier American politician, US |
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| bruno cornier botanist |
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| david cornier French politician, FR (b. 1981) |
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| edwin josé cornier colón Puerto Rican politician, activist and surfer, US |
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