Throughout the world, Sigfús (Sigfús 
) is a very rare masculine first name. The forename Sigfús is habitual in Northern Europe, particularly Iceland, where it is quite a rare male name.
| sigfús sigmundsson (b. 918) |
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| sigfús egilsson (b. 1600) |
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sigfús eymundsson Icelandic photographer (1837-1911), IS (b. 1837) |
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| sigfús skúlason (b. 1801) |
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| sigfús sigfússon (b. 1855) |
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| sigfús blöndal Icelandic librarian (1874-1950), IS (b. 1874) |
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| sigfús einarsson Icelandic composer (1877-1939), IS (b. 1877) |
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| sigfús m. johnsen (1886-1974) (b. 1886) |
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| sigfús sigurhjartarson Icelandic politician, IS (b. 1902) |
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| sigfús halldórsson Icelandic singer-songwriter (b. 1920) |
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| sigfús sigurðsson Icelandic athletics competitor (1922-1999), IS (b. 1922) |
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| sigfús bergmann bjarnason (b. 1913) |
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sigfús sigurðsson handball player, IS (b. 1975) |
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| sigfús daðason Icelandic poet (1928–1996), IS (b. 1928) |
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| sigfús ægir árnason badminton player, IS (b. 1950) |
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Sigfússon, Haraldsson, Guðbjartsson, Gunnarsson, Steinarsson, Ágústsson, Jóhannesson, Guðmundsson, Sigurðsson, Einarsson, Kárason, Bjarnason, Blöndal, Bergmann, Helgason, Jónsson, Benediktsson, and Kristmannsson