Last name Ísleifsdóttir (Ísleifsdóttir 
) , globally, is a very rare cognomen. The cognomen Ísleifsdóttir is habitual in Northern Europe, particularly Iceland, where it is quite a rare surname.
| ólína ísleifsdóttir IS (b. 1880) |
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dóra ísleifsdóttir Icelandic graphic designer, artist, and design activist, IS (b. 1970) |
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| margrét ísleifsdóttir IS |
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