Family name Guilhem (Guilhem 
, Гийом 
, Guilhèm ) , around the world, is quite a rare cognomen. The cognomen Guilhem is habitual in France, where it is quite a rare surname, Paraguay, and Brazil, where it is a rare surname. Likewise, Guilhem is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Guilhem | Brazil, Argentina, France, Japan, Paraguay |
| Гийом | Ukraine, Russia |
| Guilhèm | France |
Guglielmo, Guilherme, Guillaume, Guillem, Vilem, Vilmos, Vilém, William, Williams, Wm., Вилем, Вилмос, Вилмош, Вильмош, Вильям, Вилям, Вільмош, Вільям, Вільямс, Гильен, Гильерме, Гуилхем, Гійом, Уильям, Уильямс, Уилям, Уільям, גוליאלמו, גיום, וויליאם, ויליאם, ויליאמס, وليامز, ولیم, ويليام, ویلیام, উইলিয়াম, ウィリアム, ウィリアムス, ウィリアムズ, ウイリアム, ギョーム, ギヨーム, 吉恩, 吉拉姆, 威廉, and 威廉斯
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arnault guilhem de barbazan French condottiero and military personnel, FR (b. 1360) |
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| filipe guilhem (b. 1487) |
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| jean-pierre olivier guilhem French politician, FR (b. 1765) |
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pierre-victor guilhem French officer, FR (b. 1815) |
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| joseph guilhem FR (b. 1768) |
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| louis paul achille guilhem French politician (1808-1880), FR (b. 1808) |
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| louis paul achille guilhem FR (b. 1808) |
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henrique aristides guilhem BR (b. 1875) |
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charles guilhem French Catholic priest, FR (b. 1897) |
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| jacques guilhem French politician (1874-1951), FR (b. 1874) |
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claude guilhem French journalist, FR (b. 1946) |
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| jeanne guilhem FR (b. 1891) |
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| louis guilhem French Righteous Among the Nations, FR (b. 1904) |
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| hélène guilhem French Righteous Among the Nations, FR (b. 1909) |
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yann guilhem French table tennis player, FR (b. 1969) |
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