Guillaume is the French equivalent of William (name), which is of old Germanic origin.Hanks, Hardcastle and Hodges, Oxford Dictionary of First Names, Oxford University Press, 2nd edition, , p.276. Among its oldest, well-known carriers was Charlemagne's cousin William of Gellone.
People with this surname include: Albert Guillaume (1873–1942), French caricaturist Alfred Guillaume (1888–1966), British Islamic scholar Augustin Guillaume (1895–1983), French general Charles-Édouard Guillaume (1861–1938), French-Swiss physicist and Nobel laureate Didier Guillaume (1959–2025), French politician Edith Guillaume (1943–2013), Danish opera singer Droupgyu Wangmo, French Buddhist nun Günter Guillaume (1927–1995), a close aide to West German chancellor Willy Brandt who turned out to be a spy for East Germany's secret service Gustave Guillaume (1883–1960), French linguist Henri Guillaume (1812–1877), Belgian general and military historian Jacquette Guillaume (fl. 1665), French writer James Guillaume (1844–1916), Swiss anarchist Jean Guillaume (1918–2001), Belgian writer Jean-Baptiste Claude Eugène Guillaume (1822–1905), French sculptor Paul Guillaume (1891–1934), French art dealer Paul-Marie Guillaume (born 1929), French Roman Catholic bishop Pierre Guillaume (born 1941), French book-shop founder Robert Guillaume (1927–2017), American stage and television actor Sylvain Guillaume (born 1968), French skier
See also Guillaume (given name) Guillaume (disambiguation)
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