Surname Demassieux (Demassieux 
) , in the world, is a rare last name. The cognomen Demassieux is habitual in France, where it is a rare surname, Belgium, where it is a very rare surname, and Canada, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Demassieux | Belgium, Canada, United Kingdom, France |
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nathalie demassieux French chemist, FR (b. 1884) |
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| claude demassieux French politician, FR (b. 1948) |
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| charles demassieux French writer |
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Guy, Karine, Daniel, Thomas, Fabien, Martial, Sylvain, Raphael, Deklann, Gabriel, Ludovic, Timotey, Nicolas, Florent, Olivier, Sandrine, Benjamin, Brigitte, Delphine, Geoffroy, Laurence, Jérémy, Brayan, Claire, Carole, Adrien, Alan, Anne, Paul, Rene, Jean, Odin, Mandy, Serge, Anais, Cyril, Thibault, Peggy, René, Denis, Dylan, Jodie, Elena, Fanny, Marine, Miguel, Sophie, Sylvie, Roger, and Frederic