Surname Duyck (Duyck 
) , around the globe, is quite a rare last name. The surname Duyck is habitual in Belgium, where it is quite a common surname, France, where it is quite a rare surname, and Poland, where it is a rare surname. Measured by absolute frequency, it is commonest in Belgium, France, and the United States.
| VARIANT | COUNTRY |
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| Duyck | Poland, Belgium, United States, Romania, France |
| anthonie duyck Grand Pensionary of Holland (1560-1629), NL (b. 1560) |
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| edouard duyck Belgian painter, BE (b. 1856) |
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ann-sophie duyck Belgian cyclist, BE (b. 1987) |
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| joël duyck French politician, FR (b. 1954) |
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| jacky duyck BE (b. 1947) |
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| raymond duyck FR (b. 1955) |
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| alexandre duyck French journalist, FR (b. 1969) |
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| klaas duyck Belgian performing artist, BE |
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| stefanie duyck researcher (ORCID 0000-0001-7963-2606) |
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| joke duyck researcher |
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| pierre-françois duyck researcher |
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| pieter duyck Belgian cyclist, BE (b. 1982) |
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| michaël duyck |
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| johan duyck BE |
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| ilse duyck BE |
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