Family name Friðþjófsson (Friðþjófsson 
) , around the globe, is a very rare cognomen. The surname Friðþjófsson is characteristic of Northern Europe, particularly Iceland, where it is quite a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Friðþjófsson | Iceland |
| þorsteinn friðþjófsson association football player (b. 1940) |
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| sigurður á. friðþjófsson IS (b. 1951) |
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