Guillermo

Guillermo: name meaning, origin & popularity

Meaning: “resolute protector”
Origin: Germanic
Say it: ghee-YEHR-mo · 3 syllables
Used for: Boys

Spanish form of William, from Germanic Wilhelm: wil 'will, desire' and helm 'helmet, protection'. A widely established Spanish-language form.

Spanish names Latino & Hispanic names Names meaning protector Names meaning strength Classic names International names

How popular is Guillermo?

202489.0 per million US babies

Drag the line or the slider to read any year. Values are per million US births recorded by Social Security. Records before about 1937 undercount births, so early peaks can look taller than they were.

Compare with another name

Babies named Guillermo in 2024297

2024 rank#831 boys

Peak year1996

Total US babies since 188031,881

Guillermo has been fairly stable over the last fifteen years.

Names like Guillermo

Variants, related forms and names with the same roots.

Liamresolute protector · Irish
Williamresolute protector · Germanic
Wilsonson of Will · English
Willresolute protector · Germanic
Billresolute protector · Germanic
Willisdescendant of Will · English
Henryhome ruler · Germanic
Charlesfree man · Germanic

Guillermo questions

What does the name Guillermo mean?

Guillermo means "resolute protector". It comes from Germanic. Spanish form of William, from Germanic Wilhelm: wil 'will, desire' and helm 'helmet, protection'. A widely established Spanish-language form.

Is Guillermo a boy or girl name?

Guillermo is mainly a boy's name in US records (100% of uses since 1880).

How popular is Guillermo?

297 US babies were named Guillermo in 2024. Its peak year was 1996.

How do you pronounce Guillermo?

Guillermo is usually pronounced ghee-YEHR-mo.

Birth counts: US Social Security Administration national data, 1880–2024 (names given to 5+ babies of a sex in a year). How we write meanings.