Cailyn
4 countries#3712 in United States, 2025Popularity across 4 countries
Each line is scaled to its own peak, so you can compare when Cailyn was in fashion in each country, whatever the population size.
Country by country
🇺🇸 United States
5,554 births recorded 1979–2025 · currently #3712 · peaked in 2009 with 401 births
Most common in: Texas, California, Florida, Pennsylvania, New York
Source: Social Security Administration, official birth-registration data
🇬🇧 United Kingdom
122 births recorded 2001–2018 · peaked in 2009 with 15 births (England & Wales + Scotland + Northern Ireland combined)
Source: ONS, National Records of Scotland & NISRA (combined), official birth-registration data
🏴🏴 England & Wales
87 births recorded 2001–2018 · peaked in 2008 with 11 births
Source: Office for National Statistics, official birth-registration data
🏴 Scotland
32 births recorded 2007–2017 · peaked in 2009 with 7 births
Source: National Records of Scotland, official birth-registration data
Northern Ireland
3 births recorded 2011–2011 · peaked in 2011 with 3 births
Source: NISRA, official birth-registration data
United States rank history
Cailyn’s rank among girls’ names, most recent 20 years on record.
| Year | Rank | vs. prior yr |
|---|---|---|
| 2006 | #869 | — |
| 2007 | #974 | ↓105 |
| 2008 | #742 | ↑232 |
| 2009 | #724 | ↑18 |
| 2010 | #835 | ↓111 |
| 2011 | #868 | ↓33 |
| 2012 | #985 | ↓117 |
| 2013 | #1111 | ↓126 |
| 2014 | #1326 | ↓215 |
| 2015 | #1337 | ↓11 |
| 2016 | #1815 | ↓478 |
| 2017 | #2184 | ↓369 |
| 2018 | #2584 | ↓400 |
| 2019 | #2508 | ↑76 |
| 2020 | #2468 | ↑40 |
| 2021 | #3002 | ↓534 |
| 2022 | #2661 | ↑341 |
| 2023 | #3091 | ↓430 |
| 2024 | #3277 | ↓186 |
| 2025 | #3712 | ↓435 |
Frequently asked questions about Cailyn
Is Cailyn a popular name?
Yes — Cailyn currently ranks #3712 among girls’ names in United States as of 2025, based on official birth records.
Is Cailyn more common for boys or girls?
Cailyn is recorded predominantly as a girls’ name in official United States birth data.
When was Cailyn most popular?
Cailyn peaked in 2009 in United States, with 401 recorded births that year.
Is Cailyn rising or falling in popularity?
In United States, Cailyn’s popularity is rising — its rank has improved from #10210 in 1979 to #3712 in 2025.
How many babies have been named Cailyn?
At least 5,676 babies have been recorded with the name Cailyn across official birth statistics in 4 countries.
Is Cailyn popular in more than one country?
Yes — Cailyn appears in official birth records in 4 countries: United States, England & Wales, Scotland, Northern Ireland.
What names are similar in popularity to Cailyn?
Based on real 2025 ranking data in United States, names ranked closest to Cailyn include Berkleigh, Brynnley, Camelia, Carmyn.
Similar names right now
Ranked directly next to Cailyn in United States, 2025 — a real popularity match, not a subjective list.