Globally, Jean-Guillaume (Jean-Guillaume 
) is a rare male given name. The first name Jean-Guillaume is habitual in Western Europe, particularly France, where it is quite a rare male name. Much less frequently, Jean-Guillaume is the last name as well as the forename. Parts of the name also exists independently as a first name Jean, and a first name Guillaume.
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| Jean-Guillaume | Hungary, Belgium, Canada, United States, France |
| jean-guillaume d’alvarado y bracamonte BE (b. 1643) |
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jean-guillaume de winter Dutch admiral (1761–1812), NL (b. 1761) |
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| jean-guillaume molinier Roman Catholic bishop, FR (b. 1733) |
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| jean-guillaume de la planche de ruillé French politician, FR (b. 1739) |
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| jean-guillaume guerrier (1741-1807) (b. 1741) |
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| jean-guillaume blanchon FR (b. 1743) |
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| jean-guillaume de lisle Canadian notary, US (b. 1757) |
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| jean-guillaume brixhe French politician, FR (b. 1758) |
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| jean-guillaume de montigny CA (b. 1750) |
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| jean-guillaume van leempoel (b. 1751) |
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| jean-guillaume de zantis de frymerson NL (b. 1757) |
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jean-guillaume delarge Writer in Walloon, BE (b. 1829) |
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| jean-guillaume goldenberg DE (b. 1778) |
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| jean-guillaume fyard de gevigney et de mercey FR (b. 1785) |
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| jean-guillaume henry French catholic priest and writer (1803-1880), FR (b. 1803) |
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Goy, Pollet, Roller, Deniel, Durand, Hubert, Zeidan, Maurice, Misteli, Soulier, Courtet, Bastien, Roussel, Runacher, Laurent, Lalanne, Lavertu, Lesieur, Hamelin, Vicente, Charrier, Isenbart, Pechdo, Pessin, Perrot, Perrin, Cova, Brun, Bull, Roux, Hahn, Monin, Morin, Merdy, Simon, Campo, Parmentier, Buvry, Denis, Duwyn, Jamin, Vanet, Vieux, Fabre, Martin, Astier, Benoit, Bonnet, Poplu, and Reymondier