Cognomen Roumain (Rumen 
, Румен 
, Roumain 
) , across the world, is quite a rare last name. The cognomen Roumain is habitual in North Macedonia, where it is quite a rare surname, Bulgaria, and Slovenia. Not in comparison with a country's population, it is commonest in Bangladesh, France, and Spain. More frequently, Roumain is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rumen | Greece, Bangladesh, France, Bulgaria, Afghanistan |
| Румен | Ukraine, Belarus, Bulgaria, Russia, Kyrgyzstan |
| Roumain | Germany, France, United States, Belgium, Democratic Republic of the Congo |
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jacques roumain Haitian politician and poet (1907-1944), HT (b. 1907) |
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daniel bernard roumain American musician, US (b. 1971) |
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| claude roumain Haitian athletics competitor, HT (b. 1961) |
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| george roumain American volleyball player, US (b. 1976) |
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| louis roumain Haitian politician, HT |
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| martin roumain researcher |
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| maryse roumain Haitian writer, HT |
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Mr, Adrian, Carrel, Claude, Philip, Rachel, Regine, Deodel, Daniel, George, Gilles, Lesang, Janine, Joseph, Joakim, Thomas, Olivia, Martial, Matthew, Malcolm, Michele, Solomon, Simone, Manuel, Margie, Maryse, Le, Cã, Kim, Guy, Ian, Marc, Alex, Anne, Gina, Lisa, Stephan, Jael, Toni, Marie, Alias, Kikue, Ralph, Renee, Ricky, Louto, Jason, Martin, Joel, and Sylvain