Surname Ólason (Ólason 
) , worldwide, is a rare last name. The cognomen Ólason is habitual in Iceland, where it is quite a common surname, and the United States, where it is an extremely rare surname.
| atli þór ólason Icelandic medical historian, IS (b. 1949) |
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| kristinn ólason IS (b. 1965) |
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| bergþór ólason Icelandic politician, IS (b. 1975) |
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| brynjólfur ólason IS (b. 1967) |
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| magnús ólason researcher |
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| bergþór ólason IS (b. 1975) |
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Atli, Ásmundur, Stefán, Baldvin, Kjartan, Daníel, Lórenz, Hermann, Ágúst, Þorsteinn, Sigurður, Sigurjón, Steindór, Kristinn, Guðmundur, Þórður, Ingvar, Viktor, Hörður, Hinrik, Jón, Örn, Ævar, Óli, Bragi, Páll, Einar, Gudmundur, Hlöðver, Snorri, Birgir, Rúnar, Gunnar, Lúther, Jóhann, Heimir, Magnús, and Þórarinn