Guillermo
Guillermo is a boy's name of Germanic origin.
Meaning
Resolute protector or determined guardian.
Origin and history
Guillermo is the Spanish form of the Germanic name William, introduced to the Iberian Peninsula through historical Visigothic contacts. It is derived from roots meaning 'will' and 'helmet' or 'protection'. In the United States, it maintains a steady presence, widely recognized as a classic traditional name.
Popularity in the United States
32,074 babies in the United States have been named Guillermo since 1880. It ranks #657 all-time. Among babies born since 2020 it ranks #799.
States where it is most popular
- CA (38.3 %)
- TX (30.8 %)
- AZ (5.2 %)
- NY (5.2 %)
- FL (4.9 %)
Trends by decade
| Decade | Births |
|---|---|
| 1880-1890 | 5 |
| 1890-1900 | 13 |
| 1900-1910 | 44 |
| 1910-1920 | 253 |
| 1920-1930 | 821 |
| 1930-1940 | 783 |
| 1940-1950 | 943 |
| 1950-1960 | 1,495 |
| 1960-1970 | 2,107 |
| 1970-1980 | 3,357 |
| 1980-1990 | 4,363 |
| 1990-2000 | 6,462 |
| 2000-2010 | 6,095 |
| 2010-2019 | 3,615 |
| 2020-2029 | 1,718 |
Famous people named Guillermo
- Guillermo del Toro: Director, Screenwriter
- Guillermo Diaz: Actor
- Guillermo Vilas: Tennis Player
Nicknames
Memo, Guille
Fun facts
- Guillermo shares the exact same Germanic roots (Willahelm) as the English name William.
- Guillermo Shakespeare is how William Shakespeare's name is historically localized in Spanish-speaking regions.