Guilhermo as a Baby Name. Meaning and Origin of Guilhermo

What is the meaning of the name Guilhermo ?

The baby name Guilhermo is a Male name , 3 syllables long and is pronounced Spanish-like: gee-YER-mo (IPA: /ɡiˈʝeɾmo/),Portuguese-like: gee-LYER-moo (IPA: /giˈʎɛɾmu/).

Guilhermo is Germanic, Portuguese in Origin.

Guilhermo is a rare Iberian hybrid form of the name family derived from Germanic Wilhelm, built from wil "will, desire" and helm "helmet, protection," yielding the sense "resolute protector" or "strong-willed guardian." It blends Portuguese spelling (Guilh-) with the Spanish -ermo ending, and is typically pronounced like Spanish Guillermo in most contexts.

Its roots span medieval Europe: borne by kings, knights, and saints - most famously William the Conqueror - so the broader family has long-standing prestige. In Iberia, the standard forms are Spanish Guillermo and Portuguese Guilherme; Guilhermo appears sporadically in cross-border regions and diaspora communities where Spanish and Portuguese meet. Related variants include William, Guillaume, Wilhelm, Guglielmo, Vilhelm, Uilliam, Guillermo, and Guilherme; short forms and nicknames include Will, Liam, Guille, Memo, and Gui. Feminine counterparts include Guillermina and Guilhermina.

⚙ Guilhermo is an uncommon pick. There are only 26 recorded uses of it in our data, from 9 countries.