Last name Lamarche (Lamarche 
) , around the globe, is a common cognomen. The family name Lamarche is characteristic of Eswatini, where it is quite a common surname, Canada, and France, where it is quite a rare surname. In absolute terms, it is commonest in Canada, France, and the United States.
| VARIANT | COUNTRY |
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| Lamarche | Belgium, Canada, Dominican Republic, France, United States |
| jacques baudry de lamarche Canadian craftsman (b. 1676) |
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| simon-françois lamarche French civil servant, FR (b. 1754) |
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jacques-théodore lamarche Roman Catholic bishop, FR (b. 1827) |
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| gilles-antoine lamarche 1785-1865; Belg. Unternehmer (b. 1785) |
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| hippolyte lamarche French journalist (1789-1860), FR (b. 1789) |
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| karl friedrich wilhelm lamarche CH (b. 1800) |
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| konrad albert lamarche CH (b. 1832) |
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| charles lamarche Canadian politician (1850-1909), CA (b. 1850) |
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| richard lamarche Belgian politician, BE (b. 1855) |
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| ulric lamarche 1867 - 1921, CA (b. 1867) |
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| albert lamarche CH (b. 1859) |
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| charles-antonelli lamarche Roman Catholic bishop (1870-1940) (b. 1870) |
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| marcolin-antonio lamarche Canadian writer (1876-1950), CA (b. 1876) |
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| jules lamarche BE (b. 1869) |
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| paul-émile lamarche Canadian politician, CA (b. 1881) |
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