All around the world, Louis-Julien (Louis-Julien 
) is a very rare boy's forename. The given name Louis-Julien is characteristic of Western Europe, particularly France, where it is a very rare boy's name. Parts of the name also exists independently as a first name Louis, and a first name Julien.
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| Louis-Julien | Canada, France |
| louis-julien garos French politician, FR (b. 1739) |
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| louis-julien letard French Catholic priest, FR (b. 1750) |
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louis-julien signorino French soldier, FR (b. 1814) |
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| louis-julien clarchies French conductor, FR (b. 1769) |
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| louis-julien jacottet (1806-1880), FR (b. 1806) |
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louis-julien petit French film director, FR (b. 1983) |
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