Cognomen Wallaert (Wallaert 
) , throughout the world, is quite a rare last name. The family name Wallaert is characteristic of Belgium, where it is quite a rare surname, France, and Portugal, where it is a rare surname. Not in comparison with a country's population, it is commonest in France, Belgium, and the United States. Very seldom, Wallaert is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Wallaert | Belgium, Portugal, France, United States, China |
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pierre joseph wallaert French painter (1753–1812), FR (b. 1753) |
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jacques wallaert Belgian politician, BE (b. 1790) |
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| jacobus wallaert (b. 1790) |
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| gaston wallaert Belgian painter and writer, BE (b. 1889) |
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martin wallaert BE (b. 1944) |
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| patrick wallaert (b. 1936) |
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| annelynn wallaert researcher |
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| benoit wallaert researcher |
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| matt wallaert behavioral scientist and product strategist, US (b. 1982) |
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| catherine wallaert |
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| jean christophe wallaert BE |
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| lou wallaert Belgian association football player, BE (b. 1995) |
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