Family name Sigtryggsson (Sigtryggsson 
) , all over the world, is a rare last name. The last name Sigtryggsson is characteristic of Northern Europe, particularly Iceland, where it is quite a common surname, Denmark, where it is a rare surname, and Sweden.
| VARIANT | COUNTRY |
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| Sigtryggsson | Sweden, Iceland, Canada, United States, Denmark |
| ragnar sigtryggsson association football player (b. 1925) |
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| hlynur sigtryggsson IS (b. 1921) |
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| kjartan sigtryggsson association football player (b. 1944) |
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| runar sigtryggsson Olympic handball player, IS (b. 1972) |
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| ómar sigtryggsson Icelandic footballer, IS (b. 1973) |
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| jóhannes b. sigtryggsson (b. 1973) |
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