Surname Rosien (Rosien 
) , across the world, is a rare cognomen. The family name Rosien is characteristic of Germany, where it is a rare surname, Netherlands, and Canada. Not in comparison with a country's population, the name is most common in Germany, Canada, and the United States. Much less frequently, Rosien is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Rosien | Germany, Philippines, United States, Canada, Netherlands |
| max rosien holocaust victim, b. 1886-09-30, DE (b. 1886) |
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| walter rosien (b. 1906) |
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| michael rosien researcher (ORCID 0000-0002-5017-7408) |
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| nils-arne rosien particle physicist |
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| rosien schlangen |
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| peter hinrich rosien |
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