Last name Sivertsen (Sivertsen 
, Сивертсен 
) , all over the world, is quite a common surname. The cognomen Sivertsen is habitual in Northern Europe, particularly Norway, where it is a common surname, Denmark, where it is quite a common surname, and Iceland, where it is quite a rare surname. Not in comparison with a country's population, the name is most common in Norway, Denmark, and the United States.
| VARIANT | COUNTRY |
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| Sivertsen | Sweden, Norway, United States, United Kingdom, Denmark |
| Сивертсен | Russia |
Sievertsen, Siewertsen, Sifwertson, Sivertson, Sivertzen, Sivertzén, Syversen, Syverson, Syversson, Syvertsen, Sívertsen, and Сівертсен
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martinus nikolai sivertsen Norwegian politician (1849-1931), NO (b. 1849) |
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signe sivertsen Norwegian drawer and graphic artist (1895-1959), NO (b. 1895) |
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helge sivertsen Norwegian discus thrower and politician, NO (b. 1913) |
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eva sivertsen Norwegian linguist (1922-2009), NO (b. 1922) |
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| sigurd sivertsen Norwegian writer (1878-1951) (b. 1878) |
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| sigvard sivertsen gymnast (1881-1963), NO (b. 1881) |
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| karl sivertsen GL (b. 1877) |
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halvdan sivertsen Norwegian musician, NO (b. 1950) |
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| erling sivertsen Norwegian marine biologist (1904-1989), NO (b. 1904) |
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jan sivertsen Danish drummer (b. 1955) |
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torhild sivertsen Norwegian singer, NO (b. 1963) |
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| odin sivertsen Norwegian politician (1914-2008) (b. 1914) |
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geir-inge sivertsen Norwegian politician (b. 1965) |
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| marius sivertsen GL (b. 1906) |
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stig eide sivertsen (b. 1959) |
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