Cailin vs Cailyn

Side-by-side comparison of Cailin and Cailyn — popularity rank, total births, peak decade, and historical trends from Social Security Administration data.

Name A

Cailin

Girl name · Rank #7661

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Name B

Cailyn

Girl name · Rank #3284

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Which name is more popular?

Metric Cailin Cailyn
Current Rank #7661 #3284
Total Births (all years) 3,706 5,509
Peak Year 2003 2009
Peak Year Births 164 401
Peak Decade 2000ss 2000ss
Gender Girl Girl
First Recorded Year 1968 1979

Births by Decade

Decade Cailin Cailyn
1960ss 9 —
1970ss 53 5
1980ss 423 120
1990ss 1,079 857
2000ss 1,425 2,445
2010ss 604 1,791
2020ss 113 291

Recent Annual Births (2014–present)

Year Cailin Cailyn
2014 60 178
2015 50 177
2016 24 114
2017 29 87
2018 33 67
2019 29 70
2020 42 70
2021 20 55
2022 26 65
2023 11 53
2024 14 48

Data Sources

Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications — National Data, ssa.gov/oact/babynames.
Source: SSA Annual Name Rankings, 1968–2024.

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