Family name Sommerfelt (Sommerfelt 
) , around the world, is a rare cognomen. The family name Sommerfelt is characteristic of Norway, where it is quite a rare surname, Denmark, where it is a rare surname, and the United States, where it is a very rare surname. In absolute terms, the name is most common in Norway, the United States, and Brazil.
| VARIANT | COUNTRY |
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| Sommerfelt | Norway, Brazil, Canada, United Kingdom, United States |
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søren christian sommerfelt Norwegian priest and botanist (1794–1838), NO (b. 1794) |
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| ole hannibal sommerfelt Norwegian topographer and politician, NO (b. 1753) |
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| christian sommerfelt Norwegian priest, politician, botanist (1819-1903) (b. 1819) |
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alf sommerfelt Norwegian linguist and professor, NO (b. 1892) |
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bertha nina sommerfelt Norwegian dancer and actress, NO (b. 1896) |
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| harald vilhelm sommerfelt Norwegian writer (b. 1848) |
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| søren kristian sommerfelt Norwegian priest (1851-1934) (b. 1851) |
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| hans sommerfelt Norwegian physician (1853-1943) (b. 1853) |
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| axel sommerfelt Norwegian priest (1855-1909) (b. 1855) |
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| lars christian andreas broch sommerfelt (b. 1859) |
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| axel sommerfelt (b. 1860) |
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| waldemar sommerfelt Norwegian composer, NO (b. 1885) |
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| aimée sommerfelt Norwegian writer (1892-1975), NO (b. 1892) |
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sidsel sommerfelt (b. 1949) |
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| søren christian sommerfelt Norwegian diplomat, NO (b. 1916) |
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