Gillermo
Every Gillermo since 1922 — 633 of them. Popularity, births, and rankings for each year, from official Social Security records.
The story of Gillermo
Gillermo is not currently in use for newborns in the United States — fewer than five babies received the name in 2025. Its story lives in the historical record below.
Since 1922, 633 American babies have been named Gillermo. Its peak came in 1993, when 21 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 Gillermo stood among all boys' names in any year, or use the compare tool to plot it against other names.
Gillermo year by year
Every year since 2001, and five-year steps back to 1880. Rank is within each sex.
| Year | Boys | Boys rank |
|---|---|---|
| 2025 | — | — |
| 2024 | — | — |
| 2023 | — | — |
| 2022 | — | — |
| 2021 | — | — |
| 2020 | — | — |
| 2019 | — | — |
| 2018 | — | — |
| 2017 | — | — |
| 2016 | — | — |
| 2015 | — | — |
| 2014 | — | — |
| 2013 | — | — |
| 2012 | — | — |
| 2011 | 5 | #12,945 |
| 2010 | — | — |
| 2009 | 5 | #13,125 |
| 2008 | 7 | #10,239 |
| 2007 | 6 | #11,409 |
| 2006 | 5 | #12,691 |
| 2005 | 6 | #10,552 |
| 2004 | — | — |
| 2003 | 8 | #8,105 |
| 2002 | 10 | #6,706 |
| 2001 | — | — |
| 2000 | 7 | #8,502 |
| 1995 | 15 | #4,125 |
| 1990 | 12 | #4,501 |
| 1985 | 13 | #3,478 |
| 1980 | 9 | #4,267 |
| 1975 | 11 | #3,313 |
| 1970 | 12 | #2,782 |
| 1965 | — | — |
| 1960 | 5 | #4,257 |
| 1955 | — | — |
| 1950 | 7 | #3,146 |
| 1945 | — | — |
| 1940 | — | — |
| 1935 | — | — |
| 1930 | 6 | #3,750 |
| 1925 | 7 | #3,537 |
| 1920 | — | — |
| 1915 | — | — |
| 1910 | — | — |
| 1905 | — | — |
| 1900 | — | — |
| 1895 | — | — |
| 1890 | — | — |
| 1885 | — | — |
| 1880 | — | — |
Frequently asked questions
How popular is the name Gillermo in 2025?
Gillermo did not appear in the 2025 Social Security data, which means fewer than five babies received the name that year.
How many people are named Gillermo?
633 babies have been named Gillermo in the United States since 1922, based on Social Security card applications.
When was the name Gillermo most popular?
Gillermo peaked in 1993, when 21 newborns received the name.
Is Gillermo a boy or girl name?
Gillermo is overwhelmingly a boy's name — 100% of babies with the name.
Is the name Gillermo rising or falling?
Gillermo has been roughly stable over the past decade.