Cognomen Moisan (Moisan 
) , in the entire world, is a common surname. The family name Moisan is habitual in Jersey, where it is quite a common surname, France, where it is quite a rare surname, and Canada. Not in comparison with a country's population, this name is the most popular in France, Canada, and the Democratic Republic of the Congo. Very seldom, Moisan is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Moisan | Canada, United States, Democratic Republic of the Congo, Romania, France |
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elmina moisan Chilean painter (1897-1938), CL (b. 1897) |
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| laurent moisan CA (b. 1849) |
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| édouard moisan French politician, FR (b. 1902) |
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| roland moisan French journalist (1907-1987), FR (b. 1907) |
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| andré moisan French medievalist, FR (b. 1924) |
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| bill moisan American baseball player, US (b. 1925) |
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| jean moisan canadian lawyer, teacher and judge, CA (b. 1928) |
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| jean-claude moisan university professor, CA (b. 1928) |
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| clément moisan Canadian university teacher, CA (b. 1933) |
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| gatien moisan Canadian painter (1939-2019), CA (b. 1939) |
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| michèle moisan French politician, FR (b. 1949) |
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| gérard moisan FR (b. 1940) |
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| jocelyne moisan researcher and professor at Université Laval, CA (b. 1954) |
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| jean-françois moisan French politician, FR (b. 1955) |
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| yves moisan French politician, FR (b. 1957) |
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