Last name Leclaire (Leclaire 
, Леклер 
) , all over the world, is quite a common family name. The family name Leclaire is habitual in Guadeloupe, where it is quite a common surname, France, where it is quite a rare surname, and Canada. In absolute terms, it most frequently occurs in France, the United States, and Canada. Much less frequently, Leclaire is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Leclaire | France, United States, Germany, Democratic Republic of the Congo, Canada |
| Леклер | Ukraine, Russia |
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antoine leclaire American philanthropist and businessman (1797-1861), US (b. 1797) |
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edme jean leclaire French businessman (1801-1872), FR (b. 1801) |
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| théodore françois joseph leclaire FR (b. 1752) |
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| jean-nicolas leclaire French soldier, FR (b. 1788) |
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| edme marie laurent leclaire Born 1827, in Vermenton (Yonne); died January 1903. French, Sculptor, painter. (b. 1827) |
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| léon louis leclaire French painter, FR (b. 1829) |
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| victor leclaire French painter, FR (b. 1830) |
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| armand leclaire CA (b. 1888) |
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| hubert leclaire German detective, DE (b. 1906) |
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| roger leclaire Canadian astronomer, CA (b. 1910) |
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| serge leclaire French psychoanalyst & psychiatrist, FR (b. 1924) |
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marie-charlotte leclaire French actress, FR |
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pascal leclaire Canadian ice hockey player, CA (b. 1982) |
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| lucien leclaire 1937-08-07--1991-04-08; Leclaire, L.; Leclaire, L. (b. 1937) |
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| roland leclaire (b. 1931) |
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