Cognomen Thorkildsen (Thorkildsen 
) , across the world, is quite a rare last name. The last name Thorkildsen is characteristic of Norway, where it is quite a common surname, Bermuda, where it is quite a rare surname, and Denmark. Not in comparison with a country's population, it most frequently occurs in Norway, the United States, and Denmark.
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| Thorkildsen | United Kingdom, Norway, United States, Denmark, Canada |
Terkelsen, Therkelsen, Thorkelsen, Thorkildssen, Torkelsen, Torkildsen, and Torkilsen
| gunvald thorkildsen Norwegian theologian and bishop, NO (b. 1845) |
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| thomas thorkildsen American businessman, US (b. 1869) |
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| anna carlotta thorkildsen First wife of Willy Brandt, DE (b. 1904) |
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| ivar thorkildsen Norwegian graphic artist and painter (1911-1970), NO (b. 1911) |
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hilde thorkildsen Norwegian politician (b. 1963) |
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morten thorkildsen (b. 1961) |
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inga marte thorkildsen Norwegian politician, NO (b. 1976) |
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andreas thorkildsen Norwegian javelin thrower, NO (b. 1982) |
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| bjørn thorkildsen (b. 1926) |
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| dag thorkildsen Norwegian painter, NO (b. 1949) |
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| tomm thorkildsen association football player (b. 1949) |
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| dag thorkildsen Norwegian priest and professor (b. 1951) |
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| lizzie ruud thorkildsen Norwegian trade unionist (b. 1962) |
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| alf christian thorkildsen (b. 1956) |
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| gunnar thorkildsen researcher (ORCID 0000-0002-7021-5029) |
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