Cognomen Iwarsson (Iwarsson 
) , all over the world, is a rare last name. The last name Iwarsson is habitual in Northern Europe, particularly Sweden, where it is quite a rare surname, Norway, where it is a rare surname, and Finland, where it is a very rare surname.
| leif iwarsson Swedish association football player, SE (b. 1939) |
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| mattias iwarsson botanist (b. 1948) |
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| susanne iwarsson researcher, SE (b. 1958) |
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| petter iwarsson Swedish writer, SE (b. 1973) |
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| erik iwarsson researcher |
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