Worldwide, Sveinbjörn (Sveinbjörn 
, Sveinbjoern ) is a very rare masculine forename. The first name Sveinbjörn is characteristic of Northern Europe, particularly Iceland, where it is quite a common male name. Much less frequently, Sveinbjörn is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Sveinbjörn | Spain, Iceland, United States |
| Sveinbjoern | Iceland |
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sveinbjörn egilsson Icelandic poet (1791-1852), IS (b. 1791) |
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sveinbjörn sveinbjörnsson Icelandic composer, IS (b. 1847) |
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| sveinbjörn ásgeir egilson Icelandic writer, IS (b. 1863) |
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sveinbjörn beinteinsson Icelandic neopaganist leader (1924-1993), IS (b. 1924) |
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| sveinbjörn sigurjónsson Icelandic translator, IS (b. 1899) |
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| sveinbjörn ingimundarson (b. 1901) |
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sveinbjörn claessen Icelandic basketball player, IS (b. 1986) |
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| sveinbjörn björnsson (b. 1936) |
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| sveinbjörn hákonarson Icelandic association football player, IS (b. 1957) |
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| sveinbjörn pétursson Icelandic handball player, IS (b. 1988) |
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| sveinbjörn pálsson |
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| sveinbjörn thorarensen |
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| sveinbjörn sveinsson |
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Sig, Einarsson, Egilsson, Hjörleifsson, Þorsteinsson, Sigurðsson, Steinþórsson, Nikulásson, Pétursson, Jóhannesson, Halldórsson, Hafsteinsson, Hólmgeirsson, Ragnarsson, Haraldsson, Guðmundsson, Sveinbjörnsson, Gíslason, Rúnarsson, Gestsson, Geirsson, Lárusson, Pálsson, Runarsson, Hlöðversson, Guðlaugsson, Árnason, Sveinsson, Arnaldsson, Brandsson, Birgisson, Björnsson, Bjarnason, Magnússon, and Sveinbjornsson