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In the world, Sigursteinn (Sigursteinn ) is an extremely rare boy's given name. Much less frequently, Sigursteinn is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Sigursteinn | Iceland |
| sigursteinn gíslason Icelandic footballer (1968-2012), IS (b. 1968) |
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| sigursteinn másson (b. 1967) |
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Sson, Másson, Myrdal, Bjarni, Snorrason, Leifsson, Jonsson, Baldursson, Hákonarson, Húbertsson, Sigurðsson, Brynjólfsson, Gunnarsson, and Gudmundsson