Last name Ketilsdottir (Ketilsdottir 
) , worldwide, is a very rare family name. The cognomen Ketilsdottir is characteristic of Iceland, where it is quite a common surname, Norway, where it is a very rare surname, and the United States, where it is an extremely rare surname. Much less frequently, Ketilsdottir is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ketilsdottir | United States, China, Iceland, Norway |
| yngvild ketilsdottir (est. 800 - uncertain 880) |
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| audur ketilsdottir researcher (ORCID 0000-0003-1807-8220) |
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