Guillermo
BoySpanish
Guillermo is a boy name of Spanish origin meaning "Resolute protector".
About this name
Gender
Boy
Language
Spanish
Religion
Christian
Popularity
8 / 100
Syllables
3
Length
9 letters
Meaning
Resolute protector
Etymology
Spanish form of William, from Old High German Willihelm: wil (will) + helm (helmet, protection).
Famous People Named Guillermo
- Guillermo del Toro — Mexican filmmaker and author (born 1964)
- Guillermo Ochoa — Mexican association football player (born 1985)
- Guillermo Stábile — Argentine football player and manager
- Guillermo Vilas — Argentine tennis player
- Guillermo Arriaga — Mexican screenwriter and film director (born 1958)
Frequently Asked Questions About Guillermo
What does the name Guillermo mean?
Guillermo means "Resolute protector", and is of Spanish origin.
What is the origin of the name Guillermo?
Guillermo originates from Spanish, commonly used in Europe/Latin America.
Is Guillermo a boy or girl name?
Guillermo is typically used as a boy name.
What religion is the name Guillermo associated with?
Guillermo is associated with Christian.
Are there famous people named Guillermo?
Yes — notable people named Guillermo include Guillermo del Toro (Mexican filmmaker and author, born 1964), Guillermo Ochoa (Mexican association football player, born 1985), Guillermo Stábile (Argentine football player and manager), Guillermo Vilas (Argentine tennis player) and Guillermo Arriaga (Mexican screenwriter and film director, born 1958).
Last updated: June 2026