Cognomen Couet (Couet 
) , worldwide, is quite a rare surname. The surname Couet is habitual in France, where it is quite a rare surname, Israel, where it is a rare surname, and Belgium. In absolute terms, this name is the most popular in France, Canada, and the United States. Much less frequently, Couet is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Couet | Belgium, Canada, United States, Israel, France |
| jacques couet French pastor (b. 1546) |
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| bernard couet (b. 1666) |
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emmanuel couet French politician, FR (b. 1969) |
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| evelyne couet French politician, FR (b. 1945) |
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| martine couet French politician, FR (b. 1959) |
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| micheline couet French politician, FR (b. 1960) |
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| rémi couet French politician, FR (b. 1960) |
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| jacques couet researcher and professor at Université Laval, CA (b. 1965) |
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| pauline couet researcher (ORCID 0000-0003-4414-894X) |
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| benoit couet applied mathematician |
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| william couet researcher |
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| paul couet-lannes rugby union player, FR (b. 1991) |
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