Surname Lefaucheux (Lefaucheux 
) , in the world, is a rare family name. The family name Lefaucheux is characteristic of France, where it is a rare surname, Portugal, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname. In absolute terms, this name is the most popular in France, Portugal, and the United States.
| VARIANT | COUNTRY |
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| Lefaucheux | Portugal, United Kingdom, Spain, United States, France |
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casimir lefaucheux French gunsmith, FR (b. 1802) |
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| jean-baptiste-antoine lefaucheux French politician, FR (b. 1752) |
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| eugène lefaucheux FR (b. 1832) |
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| pierre lefaucheux French businessman (1898-1955), FR (b. 1898) |
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| marie-hélène lefaucheux French Resistance member, UN delegate (1904-1964), FR (b. 1904) |
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Mr, Ronan, David, Dylan, Laure, Julie, Jules, Emile, Henri, Fanny, Frank, Yoann, Marine, Maryse, Mathis, Magali, Morgan, Muriel, Sophie, Steven, Sylvie, Albert, Kevin, Bruno, Cindy, Candy, Ms, Cã, Tom, Stã, Anne, Rene, Dany, Lara, Lise, Loic, Anaïs, Léo, Jean, Eric, Yann, Yoni, Yves, Marie, Sandy, Sarah, Alain, Ambre, Léa, and Annick