Cailyn
Every Cailyn since 1979 — 5,554 of them. Popularity, births, and rankings for each year, from official Social Security records.
The story of Cailyn
Cailyn is rare for girls in the United States, ranked #3,728 in 2025 with 40 babies given the name. It is currently declining compared with a decade ago.
Since 1979, 5,554 American babies have been named Cailyn. Its peak came in 2009, when 401 newborns received the name — the signature sound of the 2000s.
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 Cailyn stood among all girls' names in any year, or use the compare tool to plot it against other names.
Cailyn 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 | 40 | #3,728 | 5 | #12,347 |
| 2024 | 48 | #3,293 | — | — |
| 2023 | 53 | #3,105 | — | — |
| 2022 | 65 | #2,666 | — | — |
| 2021 | 55 | #3,011 | — | — |
| 2020 | 70 | #2,474 | — | — |
| 2019 | 70 | #2,513 | — | — |
| 2018 | 67 | #2,588 | — | — |
| 2017 | 87 | #2,186 | — | — |
| 2016 | 114 | #1,818 | — | — |
| 2015 | 177 | #1,339 | — | — |
| 2014 | 178 | #1,328 | — | — |
| 2013 | 219 | #1,112 | — | — |
| 2012 | 256 | #985 | — | — |
| 2011 | 301 | #869 | — | — |
| 2010 | 322 | #836 | — | — |
| 2009 | 401 | #725 | — | — |
| 2008 | 399 | #742 | — | — |
| 2007 | 276 | #974 | — | — |
| 2006 | 306 | #870 | — | — |
| 2005 | 209 | #1,125 | — | — |
| 2004 | 206 | #1,107 | — | — |
| 2003 | 186 | #1,161 | — | — |
| 2002 | 172 | #1,189 | — | — |
| 2001 | 127 | #1,477 | — | — |
| 2000 | 163 | #1,219 | — | — |
| 1995 | 88 | #1,674 | — | — |
| 1990 | 44 | #2,649 | — | — |
| 1985 | 18 | #4,299 | — | — |
| 1980 | — | — | — | — |
| 1975 | — | — | — | — |
| 1970 | — | — | — | — |
| 1965 | — | — | — | — |
| 1960 | — | — | — | — |
| 1955 | — | — | — | — |
| 1950 | — | — | — | — |
| 1945 | — | — | — | — |
| 1940 | — | — | — | — |
| 1935 | — | — | — | — |
| 1930 | — | — | — | — |
| 1925 | — | — | — | — |
| 1920 | — | — | — | — |
| 1915 | — | — | — | — |
| 1910 | — | — | — | — |
| 1905 | — | — | — | — |
| 1900 | — | — | — | — |
| 1895 | — | — | — | — |
| 1890 | — | — | — | — |
| 1885 | — | — | — | — |
| 1880 | — | — | — | — |
Frequently asked questions
How popular is the name Cailyn in 2025?
Cailyn ranked #3,728 among girls' names in the United States in 2025, with 40 babies given the name, according to Social Security Administration data.
How many people are named Cailyn?
5,554 babies have been named Cailyn in the United States since 1979, based on Social Security card applications.
When was the name Cailyn most popular?
Cailyn peaked in 2009, when 401 newborns received the name.
Is Cailyn a boy or girl name?
Cailyn is overwhelmingly a girl's name — 100% of babies with the name.
Is the name Cailyn rising or falling?
Cailyn is declining — less popular now than a decade ago.