Kailyn vs Kaitlyn

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

Name A

Kailyn

Girl name · Rank #1581

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Name B

Kaitlyn

Girl name · Rank #651

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Which name is more popular?

Metric Kailyn Kaitlyn
Current Rank #1581 #651
Total Births (all years) 14,098 166,341
Peak Year 2011 2000
Peak Year Births 793 8,759
Peak Decade 2000ss 1990ss
Gender Girl Girl
First Recorded Year 1981 1971

Births by Decade

Decade Kailyn Kaitlyn
1970ss — 77
1980ss 349 10,891
1990ss 2,422 67,565
2000ss 5,584 66,909
2010ss 4,925 18,353
2020ss 818 2,546

Recent Annual Births (2014–present)

Year Kailyn Kaitlyn
2014 604 2,060
2015 436 1,662
2016 355 998
2017 298 938
2018 264 805
2019 247 701
2020 193 624
2021 180 520
2022 158 470
2023 154 482
2024 133 450

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, 1981–2024.

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