Willo
Every Willo since 1911 — 637 of them. Popularity, births, and rankings for each year, from official Social Security records.
The story of Willo
Willo is rare for girls in the United States, ranked #10,871 in 2025 with 9 babies given the name. It is currently declining compared with a decade ago.
Since 1911, 637 American babies have been named Willo. Its peak came in 1924, when 23 newborns received the name — the signature sound of the 1920s.
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 Willo stood among all girls' names in any year, or use the compare tool to plot it against other names.
Willo year by year
Every year since 2001, and five-year steps back to 1880. Rank is within each sex.
| Year | Girls | Girls rank |
|---|---|---|
| 2025 | 9 | #10,871 |
| 2024 | — | — |
| 2023 | 8 | #12,127 |
| 2022 | 6 | #15,194 |
| 2021 | 11 | #9,515 |
| 2020 | 5 | #17,386 |
| 2019 | — | — |
| 2018 | 13 | #8,584 |
| 2017 | 8 | #12,663 |
| 2016 | 13 | #8,850 |
| 2015 | 9 | #11,794 |
| 2014 | 6 | #16,408 |
| 2013 | 9 | #11,913 |
| 2012 | 9 | #12,160 |
| 2011 | 7 | #14,753 |
| 2010 | — | — |
| 2009 | 7 | #15,164 |
| 2008 | 5 | #20,337 |
| 2007 | 9 | #12,625 |
| 2006 | — | — |
| 2005 | — | — |
| 2004 | 5 | #18,712 |
| 2003 | 6 | #15,699 |
| 2002 | — | — |
| 2001 | 6 | #15,285 |
| 2000 | — | — |
| 1995 | — | — |
| 1990 | — | — |
| 1985 | — | — |
| 1980 | — | — |
| 1975 | — | — |
| 1970 | — | — |
| 1965 | — | — |
| 1960 | — | — |
| 1955 | — | — |
| 1950 | 5 | #6,096 |
| 1945 | — | — |
| 1940 | 10 | #2,958 |
| 1935 | 15 | #2,203 |
| 1930 | 21 | #1,813 |
| 1925 | 13 | #2,772 |
| 1920 | 12 | #2,895 |
| 1915 | 8 | #3,425 |
| 1910 | — | — |
| 1905 | — | — |
| 1900 | — | — |
| 1895 | — | — |
| 1890 | — | — |
| 1885 | — | — |
| 1880 | — | — |
Frequently asked questions
How popular is the name Willo in 2025?
Willo ranked #10,871 among girls' names in the United States in 2025, with 9 babies given the name, according to Social Security Administration data.
How many people are named Willo?
637 babies have been named Willo in the United States since 1911, based on Social Security card applications.
When was the name Willo most popular?
Willo peaked in 1924, when 23 newborns received the name.
Is Willo a boy or girl name?
Willo is overwhelmingly a girl's name — 100% of babies with the name.
Is the name Willo rising or falling?
Willo is declining — less popular now than a decade ago.