US Popularity:1732
Other Origin(s):German, Spanish
Meaning:Will helmet
Guillermo is a baby boy name of Mexican and Spanish origin, meaning “will helmet.” This name is no doubt a great fit if you already sense a mini conqueror coming your way. But if your little Guillermo is more of the gentle-natured sort, this name can also be a celebration of their heritage. Originally known as the Spanish version of William, this name could tie in baby’s German heritage, too. But regardless, little Guillermo could become a resolute protector of anything and anyone they love with such a rich background to lean on.

Famous People Named Guillermo

Wondering who else shares this name? Check out these well known people who made this baby name famous.
  • Guillermo Vilas
    Tennis Player

Guillermo Name Popularity Data

The Bump Ranking

Overall:Guillermo is currently #3041 on The Bump
Boy:Guillermo is currently #1687 on The Bump Boy Names

U.S. Births

Overall:Guillermo is currently #1732 in U.S. births
Boy:Guillermo is currently #839 in U.S. births

Yearly Ranking Change:

in 2023
+ 24
from 2022
In comparison to the previous year's data
  • Behind the Name, Guillermo, February 2019

  • Behind the Name, William, December 2022

Learn how we keep our content accurate and up-to-date by reading our medical review and editorial process.

Search Baby Boy Names

Search by:

  • Name or Meaning
  • Filter
  • Letter