Cognomen Lauk (Lauk 
, لاوك 
, Лаук 
) , in the entire world, is quite a rare last name. The cognomen Lauk is characteristic of Estonia, where it is quite a common surname, Germany, where it is a rare surname, and Kazakhstan. In absolute terms, the name is most common in Germany, Estonia, and Russia. Also, Lauk is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Lauk | Estonia, Indonesia, Poland, Germany, Myanmar |
| لاوك | Iraq |
| Лаук | Ukraine, Russia, Kazakhstan |
| Лавка | Ukraine, Russia, Kyrgyzstan, Kazakhstan |
| johann jakob von lauk (b. 1804) |
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tõnu lauk Estonian artist, EE (b. 1938) |
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| lucien lauk cyclist (1911-2001), FR (b. 1911) |
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| jean lauk cyclist, FR (b. 1918) |
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| rené lauk cyclist, FR (b. 1920) |
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| dieter lauk German table tennis player, DE (b. 1937) |
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| gary vernon lauk Member of Legislative Assembly of British Columbia, CA (b. 1940) |
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| kurt joachim lauk German politician, DE (b. 1946) |
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karl patrick lauk Estonian cyclist, EE (b. 1997) |
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| werner hans lauk German diplomat, DE (b. 1950) |
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| e. lauk (b. 1952) |
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| andres lauk Estonian cyclist, EE (b. 1964) |
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| siiri lauk EE (b. 1956) |
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| ülar lauk Estonian chess player, EE (b. 1968) |
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| andreas lauk cyclist, EE |
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