Cognomen Guilluy (Guilluy 
) , around the globe, is quite a rare last name. The cognomen Guilluy is habitual in Western Europe, particularly France, where it is quite a rare surname, Belgium, where it is a rare surname, and Germany, where it is an extremely rare surname. Very seldom, Guilluy is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Guilluy | Belgium, Argentina, India, France, Germany |
| henri-marie guilluy FR (b. 1911) |
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| alain guilluy French politician, FR (b. 1956) |
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| judith guilluy French politician, FR (b. 1963) |
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| christophe guilluy French geographer, FR (b. 1964) |
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| christophe guilluy researcher (b. 1979) |
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| thibault guilluy French jurist, FR |
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| thibaut guilluy FR (b. 1976) |
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| thibaut guilluy FR (b. 1976) |
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Mr, Vinz, Fred, Yves, Marie, Manon, Maxim, Sandy, Sarah, Sadia, Serge, Sonia, Alice, Aline, Alain, Andre, Anais, Annie, Cathy, Clara, Cindy, Bruno, Hugo, Evan, Emma, Eric, Ms, Max, Sã, Rã, Lea, Jok, Jã, Marc, Alan, Anne, Kevin, Coco, Rene, Remy, Rita, Gary, G-Rémy, Lisa, Léa, Jose, Jean, Tony, Keny, and Peggy