Last name Mesnil (Mesnil 
) , worldwide, is quite a rare cognomen. The surname Mesnil is habitual in Western Europe, particularly France, where it is quite a rare surname, Austria, where it is a rare surname, and Switzerland. Much less frequently, Mesnil is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mesnil | Switzerland, United States, Austria, France, Australia |
| giuseppe du mesnil Roman Catholic bishop (1716-1781) (b. 1716) |
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| elie mesnil FR (b. 1726) |
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clément-edmond révérend du mesnil FR (b. 1832) |
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félix mesnil zoologist, biologist (1868-1938), FR (b. 1868) |
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jacques mesnil Belgian historian and art historian, BE (b. 1872) |
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| edmond révérend du mesnil FR (b. 1832) |
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| léonie mesnil French artist, FR (b. 1859) |
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| herbert du mesnil (b. 1875) |
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| jacques mesnil (b. 1881) |
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christian mesnil BE (b. 1940) |
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| louis paul mesnil French entomologist, FR (b. 1904) |
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| rené-claude le mesnil FR (b. 1907) |
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romain mesnil French pole vaulter, FR (b. 1977) |
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| dominique mesnil French politician, FR (b. 1949) |
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| michel mesnil French politician, FR (b. 1955) |
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