Cognomen Westelaken (Westelaken 
) , in the world, is a rare last name. The surname Westelaken is characteristic of Netherlands, where it is quite a rare surname, Canada, where it is a very rare surname, and Belgium.
| VARIANT | COUNTRY |
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| Westelaken | Netherlands, Canada, United States, Belgium, Italy |
| petronella van der westelaken Dutch Righteous Among the Nations, NL (b. 1915) |
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rik van de westelaken Dutch news presenter, television presenter and presenter, NL (b. 1971) |
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| gijs van de westelaken (b. 1952) |
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| jan van de westelaken (b. 1956) |
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