Cognomen Longchamps (Longchamps 
) , across the world, is quite a rare family name. The cognomen Longchamps is habitual in Canada, where it is quite a rare surname, Cuba, where it is a rare surname, and Belgium. Measured by absolute frequency, this name is the most popular in Canada, the United States, and France. Very seldom, Longchamps is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Longchamps | Cuba, Belgium, France, United States, Canada |
Delongchamps, and Лонгчампс
| nigel de longchamps English monk, satirist and poet, GB (b. 1130) |
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michel-laurent de selys longchamps French politician (1759-1837), FR (b. 1759) |
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| pierre de longchamps (b. 1740) |
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| pierre-nicolas buret de longchamps 1765-1839 (b. 1765) |
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| charles de longchamps French playwright, FR (b. 1767) |
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| bogusław longchamps UA (b. 1808) |
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| walthère de selys longchamps politician, BE (b. 1846) |
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| eugène filatre de longchamps French magistrate, FR (b. 1852) |
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| gaston longchamps American artist, 1894- (b. 1894) |
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marie-josée longchamps Canadian actor and television actor, CA (b. 1947) |
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| wincenta longchamps Polish functionary (b. 1900) |
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| monique de selys longchamps NL (b. 1906) |
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| franciszek longchamps PL (b. 1912) |
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| joanne de longchamps American poet and collage artist, US (b. 1923) |
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| edé de selys longchamps BE (b. 1914) |
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