The first name Cailyn
A girl’s name.
2 syllables Female
Popularity
Babies registered in England and Wales, 1996–2025
Cailyn last appeared in the official list in 2018, given to 3 girls. It peaked in 2008, with 11 births (#2,150).
87
babies named Cailyn, 1996–2025
#5,666
rank in 2018
2008
peak year
Office for National Statistics; years with fewer than three births are not published and show as zero. Compare Cailyn with other names.
Popularity in the United States
Babies named Cailyn at birth, 1880–2025
In 2025, 40 girls born in the United States were named Cailyn, the 3,728th most popular girls’ name that year. It was used most in 2009, when 401 were.
5,554
babies named Cailyn since 1880
#3,728
rank in 2025
2009
peak year
US Social Security Administration, from applications for a Social Security card. A name is only published for a year when at least five babies were given it, so quieter years show as zero.
Questions
- How popular is the name Cailyn?
- In 2018, 3 girls born in England and Wales were named Cailyn, ranking 5,666th. Its peak was 2008, with 11 births.
- Is Cailyn a boy's or a girl's name?
- Mostly a girl's name: 100% of the 5,554 US babies named Cailyn since 1880 were girls.
- When was Cailyn most popular?
- 2009 in the United States, when 401 babies were named Cailyn, its highest rank at 725th.