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Family name Thorleifsson (Thorleifsson
) , around the world, is a rare cognomen. The last name Thorleifsson is habitual in Northern Europe, particularly Iceland, where it is quite a common surname, Norway, where it is quite a rare surname, and Denmark, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Thorleifsson | Norway, Iceland, Switzerland, Sweden, Denmark |