Last name Geirsdottir (Geirsdottir 
) , all over the world, is a rare surname. The cognomen Geirsdottir is characteristic of Northern Europe, particularly Iceland, where it is quite a common surname, Norway, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname. Measured by absolute frequency, it is commonest in Iceland, the United States, and Norway.
| VARIANT | COUNTRY |
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| Geirsdottir | United States, Iceland, United Kingdom, Norway |
| asbjorg geirsdottir researcher |
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| aslaug geirsdottir researcher ORCID ID = 0000-0003-3125-0195, IS |
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| olof g geirsdottir researcher (ORCID 0000-0002-3766-2062) |
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