Cognomen Roisin (Rosine 
, Roisin 
, Róisín 
) , across the world, is quite a common last name. The cognomen Roisin is habitual in Martinique, where it is quite a common surname, Cameroon, and Israel. In absolute terms, it is the most numerous in Cameroon, France, and Israel. More frequently, Roisin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rosine | Ivory Coast, France, Ireland, Democratic Republic of the Congo, Cameroon |
| Roisin | Philippines, France, United States, Ireland, United Kingdom |
| Róisín | France, Australia, United States, Ireland, United Kingdom |
| Roisín | Australia, Ireland, United Kingdom |
| henri de roisin (1787-1846), BE (b. 1787) |
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| ferdinand-marie-guillaume-achille baron de roisin (1805-1876) (b. 1805) |
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arsène roisin French cartoonist, FR (b. 1920) |
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| jean-didier roisin French diplomat, FR (b. 1946) |
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| marguerite de roisin - Aft 19 Nov 1578 |
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| sandrine roisin researcher |
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| paul roisin Ph.D. Université Catholique de Louvain 2007 |
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| emmanuelle roisin |
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| fariha roisin Australian-Canadian writer (b. 1990) |
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| marie de roisin, dame de donstienne |
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| robert rodríguez i roisin |
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| yves roisin Entomologist |
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| laurène roisin FR |
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King, Hughes, Oneill, Maguire, Mcgrath, Mckenna, Sweeney, Brennan, Kennedy, Doherty, Farrell, O'Brien, O'Neill, Monaghan, Mccarthy, Campbell, Connolly, Donnelly, O'Connor, Gallagher, Mclaughlin, Cunningham, Devlin, Rooney, Keenan, Curran, Ryan, Daly, Moore, Smith, Smyth, Boyle, Brady, Burke, Byrne, Kelly, Fitzgerald, Doyle, Duffy, Lynch, Walsh, Quinn, Morgan, Molloy, Murray, Murphy, Mccann, Clarke, Dunne, and O'Sullivan