Cognomen Garðarsson (Garðarsson 
) , globally, is a rare family name. The last name Garðarsson is characteristic of Northern Europe, particularly Iceland, where it is quite a common surname.
| VARIANT | COUNTRY |
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| Garðarsson | Iceland |
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gísli örn garðarsson Icelandic film producer and author, IS (b. 1973) |
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| finnur garðarsson Icelandic swimmer, IS (b. 1952) |
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| karl garðarsson Icelandic politician, IS (b. 1960) |
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| leifur sigfinnur garðarsson Icelandic basketball referee, IS (b. 1968) |
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| karl garðarsson IS (b. 1960) |
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| sverrir garðarsson Icelandic association football player, IS (b. 1984) |
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| ágúst bjarni garðarsson Icelandic politician (b. 1987) |
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| tómas óli garðarsson Icelandic association football player, IS (b. 1993) |
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Jon, Hörður, Vignir, Ólafur, Sigurvin, Stefán, Sverrir, Brynjar, Garðar, Haukur, Grétar, Friðrik, Ágúst, Þorsteinn, Sigurður, Sigurgeir, Björgvin, Kristinn, Gunnlaugur, Hjörtur, Hannes, Eggert, Jóhann, Karl, Geir, Jón, Hugi, Sæþór, Almar, Kári, Páll, Daði, Elmar, Hrafn, Árni, Magnús, Sindri, Sævar, Sveinn, Bjarki, Gunnar, Gísli, Guðmundur, and Unnsteinn