Family name Kristmannsson (Kristmannsson 
) , across the world, is a very rare last name. The cognomen Kristmannsson is habitual in Northern Europe, particularly Iceland, where it is quite a common surname, and Norway, where it is a rare surname.
| gauti kristmannsson (b. 1960) |
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| viktor kristmannsson (b. 1984) |
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| robert kristmannsson (b. 1987) |
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