Guillaume
French · Boy · 2 syllables
Popularity & facts
Relative popularity index, 2010–2025Popularity over time
Popularity indexHistorical popularity from 1880–2025 · US Social Security Administration data
About the name Guillaume
The name 'Guillaume' means "resolute protector" and derives from the Germanic elements *wil* (will, desire) and *helm* (helmet, protection).
Cross-referenced with Behind the Name. AI-assisted, community-reviewable. Suggest an improvement.
Etymology
The name 'Guillaume' means "resolute protector" and derives from the Germanic elements *wil* (will, desire) and *helm* (helmet, protection). It is the French form of William, used primarily in French-speaking cultures and historically prominent due to figures like William the Conqueror (Guillaume le Conquérant).
Guillaume currently ranks #11,406 in the United States as a boy's name. It reached its peak popularity around 1997.
Contribute to this name
Help improve this page with a meaning, origin, or correction—and get credited as a contributor.
Share your knowledge about this name—meaning, origin, pronunciation, or correction. Your contribution is reviewed and credited with your name.
Login to contributeWe use Google & Facebook login — no password needed.
Sibling name ideas
French names that sit beautifully beside GuillaumeSimilar names you might like
Names starting with GMore names starting with G
- Gaetan
- Gagan
- Gad
- Gale
- Gayle
- Gaby
- Gaynor
- Gareth
- Galina
- Garett
- Garreth
- Gavan
- Gard
- Gage
- Gari
- Gabrielly
- Gaya
- Garrett
See all names like Guillaume →
Find middle names for Guillaume →
🧬 See Guillaume's popularity the year you were born →
🔢 Get Guillaume's free numerology report card →
💫 Is Guillaume your name? Get your free “My name means…” card →
👶 Have a Guillaume already? Find sibling names that fit →
Names that sound like Guillaume
Phonetic match, not just spelling"Glenn derives from the Scottish and Irish Gaelic word "gleann," meaning "valley" or "glen," referring to a person who lived…"
"Guillem means "resolute protector" or "determined warrior," derived from the Germanic elements "wil" (will, desire) and "helm" (helmet, protection), making…"
"The name 'Giuliano' means "youthful" or "downy-bearded," derived from the Latin family name *Julianus*, itself from *Julius* (connected to the…"
"The given name 'Gillan' is a variant of the Irish name 'Gillian,' derived from the Latin 'Juliana,' meaning "youthful" or…"
"Giulian is the Italian form of Julian, derived from the Latin name Iulianus, which means "of or belonging to Julius"…"
"Glyn derives from Welsh "glynn," meaning "valley" or "glen," rooted in Brythonic Celtic language."
"The given name 'Gillon' is derived from the Old French name 'Gilhon', which is a diminutive form of 'Gil', meaning…"
"Gillian is the feminine form of Julian, derived from the Latin name Iulianus, which means "of or belonging to Julius"…"
"Glynn is a Welsh name derived from the word "glynn" meaning "valley" or "glen," rooted in the Brythonic Celtic language."
"Giuliana is the Italian feminine form of Julius, derived from the Latin family name Iulius, meaning "youthful" or "downy-bearded." The…"
"The given name 'Glen' is derived from the Old English word 'glēan', meaning a valley or a hollow, and is…"
"The name 'Gilian' is a variant of 'Julian' or 'Gillian', ultimately derived from the Latin *Julianus* (belonging to the *Julius*…"