Cognomen Hernu (Hernu 
) , globally, is a rare last name. The cognomen Hernu is habitual in France, where it is a rare surname, Belgium, where it is a very rare surname, and Canada. In absolute terms, it most frequently occurs in France, Indonesia, and Belgium. Very seldom, Hernu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Hernu | Indonesia, Belgium, United Kingdom, Canada, France |
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charles hernu French politician (1923-1990), FR (b. 1923) |
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patrice hernu French politician, FR (b. 1948) |
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| gérard hernu French politician, FR (b. 1943) |
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| jean hernu French politician, FR (b. 1950) |
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| jean-brice hernu FR (b. 1953) |
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| laurent hernu French athlete, FR (b. 1976) |
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| sophie diana hernu Peerage person ID=189994 |
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| jeffrey hernu Peerage person ID=189993 |
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| marc hernu BE |
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