Cognomen Delhaye (Delhaye 
) , around the globe, is quite a common last name. The cognomen Delhaye is habitual in Western Europe, particularly Belgium, where it is quite a common surname, France, where it is quite a rare surname, and Luxembourg. In absolute terms, it is the most numerous in France, Belgium, and Indonesia. Very seldom, Delhaye is the forename as well as the last name.
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| Delhaye | France, Indonesia, Democratic Republic of the Congo, United States, Belgium |
| eugène delhaye Belgian cyclist, BE (b. 1876) |
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| louis delhaye FR (b. 1868) |
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olivier delhaye Teacher and researcher, expert in the methodology of teaching and learning languages, in particular French as foreign language, BE (b. 1956) |
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| jean delhaye Belgian architect, BE (b. 1908) |
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| jean delhaye French astronomer, FR (b. 1921) |
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| jean-baptiste delhaye Belgian politician, BE (b. 1921) |
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| josé delhaye Belgian painter (1921-1991), BE (b. 1921) |
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| philippe delhaye BE (b. 1912) |
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| robert delhaye BE (b. 1923) |
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| jean-jacques delhaye Belgian politician (1933-1991), BE (b. 1933) |
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| raymond delhaye Belgian photographer, BE (b. 1952) |
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| claude delhaye BE (b. 1948) |
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| benoït delhaye Ph.D. École Centrale 1994, FR (b. 1965) |
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| eric delhaye French politician, FR (b. 1968) |
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| nathalie delhaye FR (b. 1966) |
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