Surname Kuuskoski (Kuuskoski 
) , all over the world, is a rare cognomen. The last name Kuuskoski is characteristic of Northern Europe, particularly Finland, where it is quite a rare surname, Estonia, where it is a rare surname, and Denmark, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in Finland, Denmark, and the United States.
| VARIANT | COUNTRY |
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| Kuuskoski | United Kingdom, Estonia, Finland, United States, Denmark |
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reino iisakki kuuskoski Prime Minister of Finland (1907-1965), FI (b. 1907) |
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eeva kuuskoski Finnish politician and physician, FI (b. 1946) |
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| urpo kuuskoski Finnish writer (1905-1982), FI (b. 1905) |
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| viljo kuuskoski Finnish professor, FI (b. 1911) |
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| martti kuuskoski Finnish actor (1917-2011), FI (b. 1917) |
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| helena kuuskoski (b. 1919) |
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