Last name Mannerfelt (Mannerfelt 
) , all over the world, is a rare cognomen. The family name Mannerfelt is habitual in Sweden, where it is quite a rare surname, Germany, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname. Very seldom, Mannerfelt is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Mannerfelt | United Kingdom, Sweden, Germany, Spain |
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otto mannerfelt Swedish writer (1852-1924), SE (b. 1852) |
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| carl erik august mannerfelt Swedish civil servant (1886-1951), SE (b. 1886) |
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| gustaf magnus theodor mannerfelt (b. 1884) |
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| carl mannerfelt geographer, SE (b. 1913) |
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| thure mannerfelt SE (b. 1911) |
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| nils mannerfelt SE (b. 1924) |
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| ocke mannerfelt (b. 1948) |
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