Surname Declercq (Declercq 
, Деклерк 
) , all over the world, is a common last name. The cognomen Declercq is characteristic of Western Europe, particularly Belgium, where it is quite a common surname, France, where it is quite a rare surname, and Luxembourg. In absolute terms, this name is the most popular in Belgium, France, and the United States. Very seldom, Declercq is the forename as well as the last name.
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| Declercq | France, Canada, United States, Belgium, Argentina |
| Деклерк | Ukraine, Russia |
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staf declercq Belgian politician (1884-1942), BE (b. 1884) |
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| albert declercq painter (b. 1840) |
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| désiré declercq Belgian photographer, BE (b. 1842) |
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| adolphe declercq Belgian politician and lawyer (1848-1901), BE (b. 1848) |
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| auguste declercq Roman Catholic bishop, BE (b. 1870) |
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daniël declercq Belgian painter, 1935-2017, BE (b. 1935) |
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| gilbert declercq French politician, FR (b. 1896) |
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| jérôme declercq road bicycle racer, BE (b. 1899) |
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| germain declercq Belgian politician, BE (b. 1904) |
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karel declercq Flemish cabaret performer, NL (b. 1957) |
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| luc declercq Belgian poet (1911-1997), BE (b. 1911) |
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| noël declercq cyclist, BE (b. 1913) |
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| andré declercq (b. 1908) |
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| raoul declercq Belgian lawyer, magistrate and professor, 1920-2016, BE (b. 1920) |
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| tijl declercq Belgian politician, BE (b. 1922) |
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