Caitlin vs Caitlyn

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

Name A

Caitlin

Girl name · Rank #1680

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Name B

Caitlyn

Girl name · Rank #2347

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Which name is more popular?

Metric Caitlin Caitlyn
Current Rank #1680 #2347
Total Births (all years) 112,068 52,531
Peak Year 1988 1998
Peak Year Births 7,246 2,937
Peak Decade 1990ss 1990ss
Gender Girl Girl
First Recorded Year 1955 1968

Births by Decade

Decade Caitlin Caitlyn
1950ss 46 —
1960ss 410 5
1970ss 1,278 71
1980ss 33,584 4,474
1990ss 49,035 21,991
2000ss 22,298 19,781
2010ss 4,935 5,652
2020ss 482 557

Recent Annual Births (2014–present)

Year Caitlin Caitlyn
2014 628 692
2015 477 494
2016 218 249
2017 161 232
2018 166 206
2019 142 198
2020 110 127
2021 85 126
2022 86 123
2023 80 103
2024 121 78

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, 1955–2024.

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