Guillaume.
a male given name, equivalent to English William.
Meaning & usage
a male given name, equivalent to English William.
a surname originating as a patronymic
Where this word comes from
Inherited from Middle French, from Old French Guillaume, Willame, from Frankish *Willahelm (“William”, literally “will-helmet”), from Proto-Germanic *Wiljahelmaz. Cognate with Old High German Willahelm (“William”).
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.