Surname Rohen (Rohen 
) , around the world, is a rare cognomen. The cognomen Rohen is habitual in Western Europe, particularly Luxembourg, where it is quite a rare surname, Belgium, where it is a rare surname, and Germany. Measured by absolute frequency, it is commonest in India, the United States, and Brazil. Likewise, Rohen is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Rohen | Germany, Belgium, United States, India, Brazil |
| johannes w. rohen German anatomist, DE (b. 1921) |
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| jeff rohen Luxembourgian handball player, LU (b. 1970) |
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| mechthild rohen Dr. rer. nat. Universität Dortmund 1991 |
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| rohen kapur Young People's Party UK candidate in the 2019 United Kingdom General Election |
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| rohen harrichandparsad researcher |
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| rohen singh Indian professional football player |
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