All around the world, Arnbjørn (Arnbjørn 
) is an extremely rare unknown gender first name. Likewise, Arnbjørn is the last name as well as the forename.
| arnbjørn jonsson 13th-century liegeman of King Haakon IV of Norway (b. 1190) |
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| arnbjørn danielsen Faroese writer (b. 1947) |
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| arnbjørn danielsen Faroese association football player (b. 1973) |
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| arnbjørn svensson Faroese association football player (b. 1999) |
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