Gender
Origin
- Spanish
- Form Of William
Alternate Spellings and Variants of Guillermo
Pronunciation
gu(i)-ller-mo, guill(e)-rmo
Popularity in the USA
- Boys: peak in 1998 (rank #369, 693 births); most recent 2025 (rank #901, 264 births)
- Girls: peak in 1991 (rank #9336, 8 births); most recent 2006 (rank #17158, 5 births)
| Year | Boys | Girls |
|---|---|---|
| 2025 | 264 | – |
| 2024 | 297 | – |
| 2023 | 292 | – |
| 2022 | 287 | – |
| 2021 | 299 | – |
| 2020 | 275 | – |
| 2019 | 320 | – |
| 2018 | 314 | – |
| 2017 | 289 | – |
| 2016 | 322 | – |
Top girl names · Top boy names in the USA (2025)
Source: U.S. Social Security Administration (SSA), national baby names data (public domain). This site is not affiliated with or endorsed by the SSA. Data years: 1880 to 2025. Original data
Popularity in England and Wales
- Boys: peak in 2019 (rank #2487, 8 births); most recent 2023 (rank #4985, 3 births)
| Year | Boys |
|---|---|
| 2025 | – |
| 2024 | – |
| 2023 | 3 |
| 2022 | 7 |
| 2021 | 3 |
| 2020 | 3 |
| 2019 | 8 |
| 2018 | 3 |
| 2017 | – |
| 2016 | 6 |
Top girl names · Top boy names in England and Wales (2025)
Source: Office for National Statistics (ONS), Baby names in England and Wales. Contains public sector information licensed under the Open Government Licence v3.0. Data years: 1996 to 2025. Original data · Licence
Popularity in France
- Boys: peak in 1972 (rank #786, 13 births); most recent 2023 (rank #4813, 3 births)
| Year | Boys |
|---|---|
| 2023 | 3 |
| 2022 | 4 |
| 2021 | – |
| 2020 | 5 |
| 2019 | 3 |
| 2018 | 4 |
| 2017 | 9 |
| 2016 | 7 |
| 2015 | – |
| 2014 | 4 |
Top girl names · Top boy names in France (2023)
Source: INSEE, Fichier des prénoms (last updated 8 July 2024), used under the Licence Ouverte / Open Licence 2.0. Changes: names are shown in title case, and spellings that differ only by accents are counted together. Data years: 1900 to 2023. Original data · Licence