Guillermo is a boy's name of Spanish origin. Its meaning is not recorded in the standard references we check — we would rather tell you that plainly than guess. In 2024 it was given to 297 boys in the United States.
Guillermo at a glance
Gender
Boy name
Origin
Spanish
Meaning
Not recorded in standard references
About the name Guillermo
Guillermo belongs to the Spanish tradition. Its roots are documented, even though its precise meaning is not recorded in the standard references — an honest gap we prefer to a confident guess.
In the United States, Guillermo first appears in Social Security records in 1885. It climbed to its best-ever rank of #352 in 1996, and in 2024 297 babies received the name — 31,807 in total since 1880. Those are the official counts, not estimates.
The meaning of Guillermo is not recorded in the standard references we check. Rather than repeat an unsourced claim, we leave it open — its Spanish origin is documented, but its exact meaning is not.
Is Guillermo a boy or girl name?
Guillermo is a boy name. In 2024, 297 babies received the name in the US.
What origin is the name Guillermo?
Guillermo comes from the Spanish tradition.
How popular is the name Guillermo?
Guillermo first appears in US records in 1885. Its best-ever ranking was #352 in 1996, and 297 babies were given the name in 2024.
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Meaning and origin for this page were checked against this source. US popularity figures are from the Social Security Administration's public baby-names data. If you spot an error, write to [email protected] — accuracy is the whole point of this site, and corrections are made fast.