Cognomen Lecoultre (Lecoultre 
) , all around the world, is a rare last name. The cognomen Lecoultre is habitual in Switzerland, where it is quite a rare surname, France, where it is a rare surname, and Australia, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in Switzerland, France, and the United States. Much less frequently, Lecoultre is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Lecoultre | Argentina, France, United States, Switzerland, Australia |
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marcel lecoultre French painter and illustrator, FR (b. 1867) |
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john-francis lecoultre Swiss painter, sculptor and mosaist (1905-1990), CH (b. 1905) |
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jean lecoultre Swiss painter (*1930), CH (b. 1930) |
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| noël lecoultre French politician, FR (b. 1957) |
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| florian lecoultre French politician, FR (b. 1989) |
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| nicole lecoultre |
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Mr, Aline, Alain, Andre, Annie, Aniko, Cathy, Cyril, Benji, Belia, Bruno, Kevin, Peter, Darin, David, Doris, Dylan, Laura, Linda, Lieke, Lydie, Jason, Serge, Susan, Myrna, Manon, Ms, Guy, Gil, Marc, Mary, Mike, Sean, Anne, Beth, Brad, Julie, Paul, Dann, Léa, Joss, Jean, Nell, Eric, Hugo, Yann, Yvan, Maria, Rene, and Tanja