Cognomen Koeck (كوك 
, Koeck 
, Köck 
) , in the entire world, is quite a common surname. The cognomen Koeck is characteristic of Austria, where it is quite a common surname, Palestinian Territory, where it is quite a rare surname, and Germany. Not in comparison with a country's population, this name is the most popular in Austria, Germany, and Egypt. Much less frequently, Koeck is the forename as well as the last name.
| VARIANT | COUNTRY |
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| كوك | Egypt, Sudan, Palestinian Territory, Iran, Algeria |
| Koeck | Belgium, Austria, Australia, United States, Germany |
| Köck | Italy, Austria, United States, United Kingdom, Germany |
| christian koeck DE (b. 1758) |
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| georg koeck (b. 1826) |
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paul koeck Belgian playwright, writer and journalist, BE (b. 1940) |
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| wolfgang koeck DE (b. 1905) |
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| barbara koeck researcher |
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| j. koeck botanist |
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| jean-louis koeck researcher |
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| richard koeck researcher |
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| thomas koeck researcher |
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| julia koeck researcher |
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| daniela maria koeck particle physicist |
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| susanne koeck |
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| stefan koeck |
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