Guillermo
Every Guillermo since 1885 — 32,148 of them. Popularity, births, and rankings for each year, from official Social Security records.
The story of Guillermo
Guillermo is uncommon for boys in the United States, ranked #902 in 2025 with 264 babies given the name. It is currently declining compared with a decade ago.
Since 1885, 32,148 American babies have been named Guillermo. Its peak came in 1998, when 693 newborns received the name — the signature sound of the 1990s.
The chart above shows the full history: the popularity view (births per 1,000 babies) is the honest comparison across generations, since total US births have changed enormously since 1880. Switch to the rank view to see where Guillermo stood among all boys' names in any year, or use the compare tool to plot it against other names.
Guillermo year by year
Every year since 2001, and five-year steps back to 1880. Rank is within each sex.
| Year | Girls | Girls rank | Boys | Boys rank |
|---|---|---|---|---|
| 2025 | — | — | 264 | #902 |
| 2024 | — | — | 299 | #831 |
| 2023 | — | — | 294 | #833 |
| 2022 | — | — | 287 | #850 |
| 2021 | — | — | 299 | #812 |
| 2020 | — | — | 275 | #832 |
| 2019 | — | — | 320 | #747 |
| 2018 | — | — | 314 | #752 |
| 2017 | — | — | 289 | #795 |
| 2016 | — | — | 322 | #755 |
| 2015 | — | — | 389 | #661 |
| 2014 | — | — | 376 | #676 |
| 2013 | — | — | 348 | #690 |
| 2012 | — | — | 392 | #619 |
| 2011 | — | — | 408 | #604 |
| 2010 | — | — | 457 | #553 |
| 2009 | — | — | 534 | #507 |
| 2008 | — | — | 583 | #476 |
| 2007 | — | — | 610 | #454 |
| 2006 | 5 | #18,117 | 621 | #439 |
| 2005 | — | — | 616 | #434 |
| 2004 | — | — | 639 | #406 |
| 2003 | — | — | 595 | #428 |
| 2002 | — | — | 626 | #405 |
| 2001 | — | — | 620 | #402 |
| 2000 | — | — | 651 | #392 |
| 1995 | 6 | #12,302 | 623 | #380 |
| 1990 | — | — | 587 | #395 |
| 1985 | 5 | #11,243 | 432 | #409 |
| 1980 | 5 | #10,921 | 395 | #409 |
| 1975 | 5 | #9,558 | 349 | #416 |
| 1970 | — | — | 290 | #472 |
| 1965 | — | — | 203 | #539 |
| 1960 | — | — | 191 | #565 |
| 1955 | — | — | 150 | #604 |
| 1950 | — | — | 127 | #608 |
| 1945 | — | — | 94 | #626 |
| 1940 | — | — | 71 | #726 |
| 1935 | — | — | 72 | #720 |
| 1930 | — | — | 101 | #611 |
| 1925 | — | — | 88 | #688 |
| 1920 | — | — | 68 | #813 |
| 1915 | — | — | 33 | #1,132 |
| 1910 | — | — | 13 | #895 |
| 1905 | — | — | 10 | #812 |
| 1900 | — | — | 6 | #1,225 |
| 1895 | — | — | — | — |
| 1890 | — | — | — | — |
| 1885 | — | — | 5 | #1,002 |
| 1880 | — | — | — | — |
Famous people named Guillermo
- Guillermo Stábile Soccer player · 1905–1966
- Guillermo del Toro Film director · b. 1964
- Guillermo Mordillo Comic artist · 1932–2019
- Guillermo Vilas Tennis player · b. 1952
- Guillermo Cabrera Infante Writer · 1929–2005
Ranked by global fame across Wikipedia editions (Pantheon project, MIT).
Frequently asked questions
How popular is the name Guillermo in 2025?
Guillermo ranked #902 among boys' names in the United States in 2025, with 264 babies given the name, according to Social Security Administration data.
How many people are named Guillermo?
32,148 babies have been named Guillermo in the United States since 1885, based on Social Security card applications.
When was the name Guillermo most popular?
Guillermo peaked in 1998, when 693 newborns received the name.
Is Guillermo a boy or girl name?
Guillermo is overwhelmingly a boy's name — 100% of babies with the name.
Is the name Guillermo rising or falling?
Guillermo is declining — less popular now than a decade ago.
Who are famous people named Guillermo?
Well-known people named Guillermo include Guillermo Stábile (soccer player), Guillermo del Toro (film director), Guillermo Mordillo (comic artist).