All around the world, François-Xavier (François-Xavier 
, Франсуа-Ксавье 
) is a rare boy's first name. The given name François-Xavier is habitual in Belgium, where it is quite a rare boy's name, France, where it is a rare male name, and Cameroon. Much less frequently, François-Xavier is the last name as well as the forename. Parts of the name also exists independently as a first name François, and a last name Xavier.
| VARIANT | COUNTRY |
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| François-Xavier | France, Cameroon, Benin, Belgium, Democratic Republic of the Congo |
| Франсуа-Ксавье | Russia |
Francesco Saverio, Francho Chabier, Francisco Javier, Franciszek Ksawery, Francois-Xavier, Franz Xaver, and Франсиско Хавьер
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françois-xavier maistre politician (1705-1789), FR (b. 1705) |
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| françois-xavier d'entrecolles French Jesuit priest, FR (b. 1664) |
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françois-xavier estin French politician, FR (b. 1734) |
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françois-xavier de feller Low Countries polemist (1735-1802), MF (b. 1735) |
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| françois-xavier margat de tilly FR (b. 1693) |
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| françois-xavier duplessis CA (b. 1694) |
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françois-xavier donzelot French general, FR (b. 1764) |
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françois-xavier fabre French painter, teacher & philanthropist (1766-1837), FR (b. 1766) |
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françois-xavier malhiot Canadian politician, CA (b. 1781) |
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| françois-xavier larcher (b. 1728) |
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| françois-xavier champion French politician (1744-1809), FR (b. 1744) |
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| françois-xavier pagès de vixouze French journalist, FR (b. 1745) |
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françois-xavier joseph de casabianca French politician, FR (b. 1796) |
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| françois-xavier laire FR (b. 1738) |
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| françois-xavier chambé French politician (1748-1813), FR (b. 1748) |
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Boca, Renaux, Durand, Dubois, Dupuis, Dufour, Legros, Tanguy, Mathieu, Mercier, Bernard, Richard, Garnier, Laurent, Lambert, Lemoine, Lecomte, Legrand, Montigny, Cuvelier, Leclercq, Lefebvre, Robert, Brunet, Allard, Michel, Rose, Roux, Jean, Morel, Meyer, Simon, Caron, Colin, Babin, Bazin, Fontaine, Blanc, Robin, Roche, Denis, David, Louis, Henry, Martin, Martel, Masson, Moreau, Rault, and Fournier