Surname Lachelier (Lachelier 
) , around the globe, is a rare cognomen. The family name Lachelier is characteristic of France, where it is a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
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| Lachelier | France, United States |
| esprit lachelier French marine officer, FR (b. 1777) |
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jules lachelier French philosopher (1832-1918), FR (b. 1832) |
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| henri lachelier French philosopher (1856-1926), FR (b. 1856) |
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suzanne lachelier American officer, US (b. 1967) |
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Ana, Catherine, Francois, Eleonore, Nicholas, Lorraine, Philippe, Sakiliba, Matthias, Yannick, Olivier, Josiane, Perrine, Pascale, Bernard, Camille, Charles, Suzanne, Paul, Papy, Sarah, Bruno, David, Marcel, Phillippe, Samuel, Desene, Lexane, Thomas, Nicole, Emilie, Olivia, Shauna, and Jean-Michel