Last name Deplanque (Deplanque 
) , worldwide, is quite a rare family name. The family name Deplanque is characteristic of Western Europe, particularly France, where it is quite a rare surname, Belgium, where it is a rare surname, and Switzerland, where it is a very rare surname. Not in comparison with a country's population, it is the most numerous in France, Belgium, and the United States. Very seldom, Deplanque is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Deplanque | Australia, Germany, France, United States, Belgium |
| jacques françois henri deplanque FR (b. 1766) |
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| rené deplanque German chemist, DE (b. 1950) |
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| hervé deplanque French politician, FR (b. 1957) |
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| dominique deplanque French pharmacologist, FR (b. 1966) |
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| marion deplanque French sailor, FR (b. 1981) |
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| ludovic deplanque |
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Mr, Eddy, Eric, Enzo, Hugo, Fred, Yann, Yves, Maria, Marie, Mandy, Sandy, Sarah, Sarya, Serge, Sonia, Alain, Alban, Andre, Annie, Cathy, Clara, Nina, Cindy, Nico, Tomy, Ben, Kim, Guy, Luc, Val, Ian, Marc, Mael, Alex, Andy, Aude, Katy, Paul, Rene, Remi, Laã, Lisa, John, Joel, Jean, Theo, Tony, and Cyril