Worldwide, Guilaine (Guilaine 
) is quite a rare girly given name. The forename Guilaine is habitual in Cameroon, where it is quite a rare female name, the Democratic Republic of the Congo, and France. Much less frequently, Guilaine is the last name as well as the forename.
| VARIANT | COUNTRY |
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| Guilaine | France, Democratic Republic of the Congo, United States, Cameroon, Ivory Coast |
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guilaine londez French actress, FR (b. 1965) |
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| guilaine chenu French journalist, FR (b. 1960) |
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| guilaine debras French politician, FR (b. 1962) |
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| guilaine graw French athletics competitor, FR (b. 1971) |
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| guilaine lagache French astrophysicist, FR (b. 1972) |
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| guilaine royer performing artist in Canada, CA |
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| guilaine jaria researcher ORCID ID = 0000-0001-7226-760X |
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| guilaine boursier researcher (ORCID 0000-0002-2903-3135) (b. 1984) |
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Adam, Durand, Dubois, Jaouen, Joseph, Jeanne, Vancol, Michaud, Salomon, Aspinas, Apollon, Bernard, Bourlet, Padgett, Pavilus, Roussel, Georges, Laurent, Lavoile, Delarchand, Gauthier, Evariste, Debras, Francois, Renié, Pierre, Bell, Paul, Jean, Morel, Andre, Cazes, Blanc, Payet, Regis, Depis, James, Henry, Martin, Maurel, Michel, Alagna, Astier, Claude, Bakala, Belony, Pestie, Robert, and Guillaume