Guillermo
3 countries#901 in United States, 2025Popularity across 3 countries
Each line is scaled to its own peak, so you can compare when Guillermo was in fashion in each country, whatever the population size.
Country by country
🇺🇸 United States
32,148 births recorded 1885–2025 · currently #901 · peaked in 1998 with 693 births
Most common in: California, Texas, Arizona, New York, Florida
Source: Social Security Administration, official birth-registration data
🇫🇷 France
302 births recorded 1925–2022 · currently #4603 · peaked in 1972 with 13 births
Most common in: Paris, Haute-Garonne, Hauts-de-Seine
Source: INSEE, official birth-registration data
🏴🏴 England & Wales
45 births recorded 2008–2021 · currently #4789 · peaked in 2019 with 8 births
Source: Office for National Statistics, official birth-registration data
🇬🇧 United Kingdom
45 births recorded 2008–2021 · peaked in 2019 with 8 births (England & Wales + Scotland + Northern Ireland combined)
Source: ONS, National Records of Scotland & NISRA (combined), official birth-registration data
United States rank history
Guillermo’s rank among boys’ names, most recent 20 years on record.
| Year | Rank | vs. prior yr |
|---|---|---|
| 2006 | #439 | — |
| 2007 | #454 | ↓15 |
| 2008 | #476 | ↓22 |
| 2009 | #507 | ↓31 |
| 2010 | #553 | ↓46 |
| 2011 | #604 | ↓51 |
| 2012 | #619 | ↓15 |
| 2013 | #688 | ↓69 |
| 2014 | #676 | ↑12 |
| 2015 | #661 | ↑15 |
| 2016 | #754 | ↓93 |
| 2017 | #795 | ↓41 |
| 2018 | #751 | ↑44 |
| 2019 | #747 | ↑4 |
| 2020 | #832 | ↓85 |
| 2021 | #811 | ↑21 |
| 2022 | #848 | ↓37 |
| 2023 | #833 | ↑15 |
| 2024 | #831 | ↑2 |
| 2025 | #901 | ↓70 |
Frequently asked questions about Guillermo
Is Guillermo a popular name?
Yes — Guillermo currently ranks #901 among boys’ names in United States as of 2025, based on official birth records.
Is Guillermo more common for boys or girls?
Guillermo is recorded predominantly as a boys’ name in official United States birth data.
When was Guillermo most popular?
Guillermo peaked in 1998 in United States, with 693 recorded births that year.
Is Guillermo rising or falling in popularity?
In United States, Guillermo’s popularity is rising — its rank has improved from #936 in 1885 to #901 in 2025.
How many babies have been named Guillermo?
At least 32,495 babies have been recorded with the name Guillermo across official birth statistics in 3 countries.
Is Guillermo popular in more than one country?
Yes — Guillermo appears in official birth records in 3 countries: United States, France, England & Wales.
What names are similar in popularity to Guillermo?
Based on real 2025 ranking data in United States, names ranked closest to Guillermo include Marcello, Foster, Kael, Kannon.
Similar names right now
Ranked directly next to Guillermo in United States, 2025 — a real popularity match, not a subjective list.