Guillaume (given name)
{{Infobox given name
| name = Guillaume
| image=Bayeux_Tapestry_William.jpg
| image_size=200px
| caption= Guillaume le Conquérant (William the Conqueror)
| pronunciation= {{IPA|fr|ɡijom|}}
| gender = Male
| language = Germanic languages
| origin = wille + helm (protection)
| meaning = Vehement protector
| region = Northern Europe
| related names = Guillaume (surname), William
| footnotes =
}}
Guillaume is the French equivalent of William, which is of old Germanic origin from wille + helm (resolute protector).Hanks, Hardcastle and Hodges, Oxford Dictionary of First Names, Oxford University Press, 2nd edition, {{ISBN|978-0-19-861060-1}}, p.276. It is an Oïl form corresponding to Occitan Guilhem and the Catalan form Guillem.
People with this given name
=Aristocrats=
- William the Conqueror (c. 1028 – 1087), in French Guillaume le Conquérant, Norman conqueror of England
- William of Gellone (755-812/14), in French Guillaume d'Orange, Count of Toulouse and hero of the epic poem Chanson de Guillaume
- Guillaume IV, Grand Duke of Luxembourg
- Prince Guillaume of Luxembourg
- Guillaume, Hereditary Grand Duke of Luxembourg (born 1981), heir apparent to the crown of Luxembourg
=A=
- Guillaume Amontons, French scientific instrument inventor and physicist
- Guillaume Apollinaire (1880–1918), French poet, writer and art critic
=B=
- Guillaume Barazzone (born 1982), Italian-Swiss politician
- Guillaume de Salluste Du Bartas, Gascon Huguenot courtier and poet
- Guillaume du Bellay, seigneur de Langey (1491–1543), French diplomat and general
- Guillaume de Bellecombe, Governor General of Réunion, Saint-Domingue and Pondichéry, and a Republican revolutionary
- Guillaume-François Berthier, French historian and librarian
- Guillaume Beuzelin, French professional football coach and former player
- Guillaume Cornelis van Beverloo (1922–2010), Dutch artist better known under the pseudonym Corneille
- Guillaume Bigourdan, French astronomer
- Guillaume aux Blanches Mains, French catholic cardinal
- Guillaume de Bonne-Carrere, French diplomat
- Guillaume Briçonnet (Cardinal) (1445–1514), French cardinal and statesman
:* his son Guillaume Briçonnet (Bishop of Meaux) (1472–1534)
- Guillaume Marie Anne Brune, French military commander, Marshal of the Empire, and political figure
- Guillaume Budé (1467–1540), French scholar
=C=
- Guillaume Cale, French rebel leader
- Guillaume Canet (born 1973), French actor
- Guillaume de Chartres (disambiguation), several people
- Guillaume Amfrye de Chaulieu, French writer
- Guillaume Cheval dit St-Jacques, Canadian politician
- Guillaume Cizeron, French ice dancer
- Guillaume Costeley, French composer of the Renaissance
- Guillaume Courtois (1628–1679), French painter and etcher
- Guillaume Coustou the Elder, French sculptor of the Baroque and Louis XIV style
- Guillaume Coustou the Younger, French sculptor of the late French Baroque or Style Louis XIV, and early neo-classicism
=D=
- Guillaume Dah Zadi (born 1978), Côte d'Ivoire footballer
- Guillaume Deschênes-Thériault, Canadian politician
- Guillaume Daniel Delprat, Dutch-Australian metallurgist, mining engineer, and businessman
- Guillaume Delisle (1675–1726), French cartographer
- Guillaume Depardieu (1971–2008), French actor
- Guillaume Dode de la Brunerie
- Guillaume Dubois (1775–1851), French soldier and Marshal of France
- Guillaume Duchenne (1806–1875), French neurologist
- Guillaume Dufay (1397–1474), Franco–Flemish composer and music theorist
- Guillaume Henri Dufour (1787–1875), Swiss general and topographer who presided over the convention that established the International Red Cross
- Guillaume Dufresne d'Arsel, 18th-century French colonial governor of Mauritius
- Guillaume Philibert Duhesme French general, politician and writer
- Guillaume Mathieu Dumas, Napoleonic general
- Guillaume Dupuytren (1777–1835), French anatomist and surgeon
- Guillaume Durand, French canonist, liturgical writer, and Bishop of Mende
- Guillaume Durand (nephew), French clergyman, a nephew of a more famous Guillaume Durand nicknamed “The Speculator”
=E=
- Guillaume Elmont, Dutch judoka
- Guillaume d'Estouteville, French monk, archbishop and cardinal
=F=
- Guillaume-André Fauteux, Canadian politician and lawyer
- Guillaume Faye, French political theorist, journalist, writer, and leading member of the French New Right
- Guillaume Fichet, French scholar
- Guillaume de Fondaumière, French video game producer
=G=
- Guillaume Gallienne, French actor, screenwriter and film director
- Guillaume Gamelin Gaucher, Quebecois businessman and political figure
- Guillaume Geefs, Belgian sculptor
- Guillaume de Gisors (1219–1307), grandson of Jean de Gisors
- Guillaume Gontard (born 1971), French politician
- Guillaume Gouffier, seigneur de Bonnivet (c. 1488 – 1525), French soldier
- Guillaume Groen van Prinsterer (1801–1876), Dutch politician and historian
- Guillaume Guiart, French chronicler and poet
=H=
- Guillaume Emmanuel Paul de Homem-Christo, musician better known as Guy-Manuel
- Guillaume Huin d'Estaing (died 1452), antipope-appointed cardinal
=K=
- Guillaume Knecht, rugby league footballer of the 1990s and 2000s
=L=
- Guillaume de Lamoignon de Blancmesnil (1683–1772), French magistrate
- Guillaume-Chrétien de Lamoignon de Malesherbes (1721–1794), French statesman
- Guillaume Latendresse, National Hockey League player for the Minnesota Wild
- Guillaume LeBlanc, Canadian former athlete
- Guillaume Lefebvre, Canadian ice hockey player
- Guillaume Le Gentil (1725–1792), French astronomer
- Guillaume Legrant, French composer of the early renaissance
- Guillaume Lekeu, Belgian composer
- Guillaume de l'Hôpital (1661–1704), French mathematician
- Guillaume de Lorris, French scholar and poet from Lorris
=M=
- Guillaume de Machaut (1300–1377), French composer and poet
- Guillaume Metten (1938-2020), Belgian diplomat
- Guillaume Morel, French classical scholar
=N=
- Guillaume-Alphonse Nantel, Canadian lawyer, journalist, author, newspaper owner, and politician
- Guillaume-Gabriel Nivers, French organist, composer and theorist
- Guillaume de Nogaret, French statesman, councilor and keeper of the seal to Philip IV of France
=O=
- Guillaume-Antoine Olivier, French entomologist and botanist
=P=
- Guillaume de Palerme, French romance poem
- Guillaume Patry, retired StarCraft professional. Played under the alias Grrrr...
- Guillaume Pellicier, French diplomat
- Guillaume-Lebrecht Petzold, French piano maker
- Guillaume Postel, French linguist, orientalist, astronomer, Christian Kabbalist, diplomat, polyglot, professor, religious universalist, and writer
- Guillaume Poyet, French judge
- Guillaume de Puylaurens, French writer and historian
=R=
- Guillaume Raoux, French tennis player
- Guillaume Thomas François Raynal, French writer and man of letters during the Age of Enlightenment
- Guillaume Rocheron, Visual effects artist
- Guillaume Rondelet (1507–1566), professor of medicine at the University of Montpellier
- Guillaume-Joseph Roques, French neoclassical and romantic painter
- Guillaume François Rouelle, French chemist and apothecary
=S=
- Guillaume Sarkozy (born 1951), French textile entrepreneur and vice-president of the MEDEF, the French union of employers
- Guillaume Sayer, Canadian fur trader
- Guillaume de Sonnac, Grand Master of the Knights Templar from 1247 to 1250
- Guillaume Soro, Ivorian politician
=T=
- Guillaume Tarrant
- Guillaume De Tonquédec, French stage, television and film actor
=V=
- Guillaume du Vair, French author and lawyer
- Guillaume Vigneault, Canadian novelist
=W=
- Guillaume Warmuz, French football coach and former player