Surname Westermarck (Westermarck 
, וסטרמרק 
, Вестермарк 
) , worldwide, is a rare cognomen. The surname Westermarck is habitual in 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.
| VARIANT | COUNTRY |
|---|---|
| Westermarck | Finland, Denmark, Estonia, United States |
| וסטרמרק | Israel |
| Вестермарк | Ukraine |
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helena westermarck Finnish artist, editor (1857-1938), FI (b. 1857) |
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edvard westermarck Finnish academic, FI (b. 1862) |
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| johan august ulrik westermarck Finnish lieutenant general in the Imperial Russian Army (1818-1903), FI (b. 1818) |
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| albert oskar josef westermarck (b. 1823) |
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nils westermarck Finnish politician (1910-2002), FI (b. 1910) |
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| bjarne westermarck Finnish politician (1887-1945), FI (b. 1887) |
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| hakon westermarck Finnish professor, FI (b. 1912) |
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| jukka westermarck researcher (b. 1969) |
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| jukka westermarck researcher (ORCID 0000-0001-7478-3018) |
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| mikael westermarck FI |
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| elias westermarck |
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| victor westermarck Finnish ice hockey player, FI (b. 1994) |
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| felix westermarck Finnish ice hockey player, FI (b. 1995) |
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