Last name Therkelsen (Therkelsen 
) , in the world, is quite a rare family name. The cognomen Therkelsen is characteristic of Greenland, where it is a common surname, Denmark, where it is quite a common surname, and Norway, where it is quite a rare surname. Not in comparison with a country's population, it is commonest in Denmark, the United States, and Norway.
| VARIANT | COUNTRY |
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| Therkelsen | Australia, Denmark, Norway, United States, Greenland |
Terkelsen, Thorkelsen, Thorkildsen, Thorkildssen, Torkelsen, Torkildsen, and Torkilsen
| sverre therkelsen Norwegian writer and translator (b. 1925) |
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| jens jørgen therkelsen (b. 1931) |
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| jørn walsøe therkelsen (b. 1940) |
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| ole therkelsen (b. 1948) |
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| knud-erik therkelsen (b. 1953) |
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| lars therkelsen (b. 1967) |
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| stig palm therkelsen researcher |
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| knud therkelsen Danish association football player |
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| peder højgaard therkelsen Danish mayor |
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| ryan kenneth therkelsen North Carolina State University 2010 |
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| matthew d therkelsen researcher |
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| jimmi therkelsen Danish cyclist, born 1991, DK (b. 1991) |
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