Cognomen Douillard (Douillard 
) , in all the world, is quite a rare surname. The last name Douillard is characteristic of France, where it is quite a rare surname, Canada, where it is a rare surname, and Portugal. Measured by absolute frequency, it most frequently occurs in France, the United States, and Canada. Very seldom, Douillard is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Douillard | France, Portugal, United States, New Zealand, Canada |
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julien-françois douillard French architect and politician (1757-1833), FR (b. 1757) |
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ludovic-françois douillard French architect and catholic priest, FR (b. 1823) |
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michel douillard French architect, FR (b. 1829) |
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alexis-marie-louis douillard French painter, FR (b. 1835) |
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| louis-prudent douillard French architect, FR (b. 1790) |
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| constant douillard French architect (1795-1878), FR (b. 1795) |
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| pierre douillard Roman Catholic bishop (1888-1963), FR (b. 1888) |
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| gabrielle douillard FR (b. 1900) |
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carole douillard French choreographer, FR (b. 1971) |
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| alain douillard French sculptor, FR (b. 1929) |
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| geneviève douillard French archivist, FR (b. 1950) |
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| john douillard American physician (b. 1956) |
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| xavier douillard French figure skater, FR (b. 1961) |
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| thierry douillard researcher |
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| jelena douillard researcher |
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