Cognomen Cnattingius (Cnattingius 
) , throughout the world, is a rare last name. The cognomen Cnattingius is habitual in Northern Europe, particularly Sweden, where it is quite a rare surname, Finland, where it is a rare surname, and Denmark.
| VARIANT | COUNTRY |
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| Cnattingius | Brazil, Denmark, Finland, Sweden |
| sveno cnattingius SE (b. 1555) |
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| nicolaus cnattingius SE (b. 1588) |
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| sveno cnattingius SE (b. 1631) |
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| daniel cnattingius SE (b. 1666) |
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| anders cnattingius SE (b. 1711) |
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| claes magnus cnattingius SE (b. 1757) |
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| johan cnattingius SE (b. 1758) |
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| johanna maria cnattingius unpublished Swedish writer, SE (b. 1791) |
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| anders jakob danielsson cnattingius Swedish priest, SE (b. 1792) |
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alfhild cnattingius SE (b. 1847) |
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| axel cnattingius Swedish editor, SE (b. 1839) |
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bengt cnattingius Swedish historian (1899-1993), SE (b. 1899) |
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| birger cnattingius Swedish fencer, SE (b. 1875) |
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| hans cnattingius SE (b. 1906) |
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| lars cnattingius SE (b. 1936) |
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