Cognomen Warén (Warén 
) , all around the world, is a very rare surname. The last name Warén is habitual in Northern Europe, particularly Sweden, where it is a rare surname, and Finland.
| sven warén SE (b. 1789) |
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eliel jonathan warén Finnish physician and ornithologist, FI (b. 1854) |
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matti warén Finnish painter, visual artist (1891-1955), FI (b. 1891) |
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| j. i. warén (b. 1851) |
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| paavo warén Finnish journalist, FI (b. 1872) |
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| axel warén FI (b. 1868) |
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| anders herman warén Swedish malacologist, SE (b. 1945) |
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| reijo warén |
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