Caio
Every Caio since 1990 — 722 of them. Popularity, births, and rankings for each year, from official Social Security records.
The story of Caio
Caio is rare for boys in the United States, ranked #3,322 in 2025 with 35 babies given the name. It is currently rising compared with a decade ago.
Since 1990, 722 American babies have been named Caio. Its peak came in 2023, when 40 newborns received the name — the signature sound of the 2020s.
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 Caio stood among all boys' names in any year, or use the compare tool to plot it against other names.
Caio year by year
Every year since 2001, and five-year steps back to 1880. Rank is within each sex.
| Year | Boys | Boys rank |
|---|---|---|
| 2025 | 35 | #3,322 |
| 2024 | 30 | #3,708 |
| 2023 | 40 | #3,067 |
| 2022 | 29 | #3,787 |
| 2021 | 32 | #3,510 |
| 2020 | 24 | #4,160 |
| 2019 | 34 | #3,359 |
| 2018 | 32 | #3,457 |
| 2017 | 24 | #4,242 |
| 2016 | 11 | #7,216 |
| 2015 | 23 | #4,311 |
| 2014 | 21 | #4,557 |
| 2013 | 29 | #3,592 |
| 2012 | 25 | #4,025 |
| 2011 | 21 | #4,530 |
| 2010 | 30 | #3,545 |
| 2009 | 31 | #3,485 |
| 2008 | 31 | #3,497 |
| 2007 | 32 | #3,385 |
| 2006 | 28 | #3,613 |
| 2005 | 23 | #3,957 |
| 2004 | 16 | #5,046 |
| 2003 | 15 | #5,071 |
| 2002 | 16 | #4,732 |
| 2001 | 6 | #9,430 |
| 2000 | 11 | #5,968 |
| 1995 | 11 | #5,170 |
| 1990 | 6 | #7,298 |
| 1985 | — | — |
| 1980 | — | — |
| 1975 | — | — |
| 1970 | — | — |
| 1965 | — | — |
| 1960 | — | — |
| 1955 | — | — |
| 1950 | — | — |
| 1945 | — | — |
| 1940 | — | — |
| 1935 | — | — |
| 1930 | — | — |
| 1925 | — | — |
| 1920 | — | — |
| 1915 | — | — |
| 1910 | — | — |
| 1905 | — | — |
| 1900 | — | — |
| 1895 | — | — |
| 1890 | — | — |
| 1885 | — | — |
| 1880 | — | — |
Famous people named Caio
- Caio Júnior Soccer player · 1965–2016
- Caio Lucas Fernandes Soccer player · b. 1994
- Caio Alves Soccer player · b. 1986
Ranked by global fame across Wikipedia editions (Pantheon project, MIT).
Frequently asked questions
How popular is the name Caio in 2025?
Caio ranked #3,322 among boys' names in the United States in 2025, with 35 babies given the name, according to Social Security Administration data.
How many people are named Caio?
722 babies have been named Caio in the United States since 1990, based on Social Security card applications.
When was the name Caio most popular?
Caio peaked in 2023, when 40 newborns received the name.
Is Caio a boy or girl name?
Caio is overwhelmingly a boy's name — 100% of babies with the name.
Is the name Caio rising or falling?
Caio is on the rise — noticeably more popular now than a decade ago.
Who are famous people named Caio?
Well-known people named Caio include Caio Júnior (soccer player), Caio Lucas Fernandes (soccer player), Caio Alves (soccer player).