Guillaume - Name Meaning and Origin

The boy's name Guillaume \gu(i)-llau-me\ is pronounced gee-OHM. It is of French origin. Variant of William (Old German) "will helmet, protection". Guillermo (gui-YARE-mo) is a Latin form. French poet Guillaume Apollinaire.

Guillaume has 6 variant forms: Gillermo, Guglielmo, Guilherme, Guillermo, Gwillyn and Gwilym.

Baby names that sound like Guillaume are Gilam and Callum.

Guillaume is a very rare male first name and a very popular surname (source: 1990 U.S. Census). Displayed below is the baby name popularity trend for the boy's name Guillaume. Click here to compare Guillaume with related baby names.