Guillaume (surname)

Guillaume is the French equivalent of William (name), which is of old Germanic origin.

Among its oldest well-known carriers was Charlemagne's cousin William of Gellone.

People with this surname

 * Albert Guillaume (1873–1942), French caricaturist
 * Alfred Guillaume (1888–1966), Islamic scholar
 * Augustin Guillaume (1895–1983), French general
 * Charles Édouard Guillaume (1861–1938), French-Swiss physicist
 * Edith Guillaume (1943–2013), Danish opera singer
 * 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), anarchist
 * Jean Guillaume (1918–2001), Belgian writer
 * Jean-Baptiste Claude Eugène Guillaume (1822–1905), French sculptor
 * Paul Guillaume (1891–1934), French art dealer
 * Pierre Guillaume (born 1941), book-shop founder
 * Robert Guillaume (1927–2017 as Robert P. Williams), American stage and television actor
 * Sylvain Guillaume (born 1968), French skier