Surname Champenois (Champenois 
) , worldwide, is quite a rare last name. The surname Champenois is habitual in France, where it is quite a rare surname, Belgium, and Canada, where it is a very rare surname. Not in comparison with a country's population, this name is the most popular in France, Belgium, and the United States. Much less frequently, Champenois is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Champenois | Italy, Belgium, China, United States, France |
| eudes i le champenois 1187 (b. 1123) |
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| nicolas champenois French bishop, FR (b. 1734) |
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| amédée champenois entomologist (1836 — 1916) (b. 1836) |
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| xavier champenois FR (b. 1914) |
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aurélien champenois Belgian bicycle racer, BE |
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| antoine champenois FR (b. 1924) |
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| henry-noël champenois French politician, FR (b. 1951) |
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| jacques champenois French politician, FR (b. 1951) |
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| bernard champenois French cyclist, FR (b. 1954) |
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| marie-christine champenois French athletics competitor, FR (b. 1955) |
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| françoise champenois FR (b. 1947) |
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| patrick champenois (b. 1949) |
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| françoise champenois FR (b. 1951) |
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| denis champenois (b. 1954) |
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| eustache champenois mayor of Meudon, France, from 1795 to 1796, FR |
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