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Cognomen Sigfusson (Sigfusson
) , around the globe, is a rare family name. The cognomen Sigfusson is habitual in Northern Europe, particularly Iceland, where it is a common surname, Denmark, where it is a rare surname, and Norway. In absolute terms, it is commonest in Iceland, Canada, and Denmark.
| VARIANT | COUNTRY |
|---|---|
| Sigfusson | Norway, Canada, Iceland, United States, Denmark |