Last name Ledru (Ledru 
) , throughout the world, is quite a rare cognomen. The last name Ledru is characteristic of France, where it is quite a rare surname, Cameroon, where it is a rare surname, and Belgium. Much less frequently, Ledru is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Ledru | France, Cameroon, India, Belgium, Democratic Republic of the Congo |
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nicolas-philippe ledru French scientist and magician, FR (b. 1731) |
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| jacques-philippe ledru French physician, FR (b. 1754) |
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| andré pierre ledru French clergyman and botanist (1761–1825), FR (b. 1761) |
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| françois roch ledru des essarts French politician and officer, FR (b. 1765) |
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| hilaire ledru painter from France (1769-1840), FR (b. 1769) |
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| louis-charles-françois ledru French architect, FR (b. 1778) |
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| louis-charles ledru French architect, FR (b. 1778) |
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ambroise ledru FR (b. 1849) |
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| agis-léon ledru French architect and politician, FR (b. 1816) |
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| camille ledru French engineer, FR (b. 1818) |
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auguste ledru FR (b. 1860) |
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alice ledru FR (b. 1870) |
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| émile-charles-albert ledru French lawyer, FR (b. 1848) |
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| antoine-léon-alphonse ledru French soldier and lawyer, FR (b. 1848) |
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| robert ledru (b. 1852) |
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