Killian vs Kiley

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

Name A

Killian

Boy name · Rank #369

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Name B

Kiley

Girl name · Rank #2975

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Which name is more popular?

Metric Killian Kiley
Current Rank #369 #2975
Total Births (all years) 15,446 19,110
Peak Year 2017 2008
Peak Year Births 1,505 1,089
Peak Decade 2010ss 2000ss
Gender Boy Girl
First Recorded Year 1915 1958

Births by Decade

Decade Killian Kiley
1910ss 5 —
1920ss 5 —
1950ss — 5
1960ss — 27
1970ss — 783
1980ss 132 1,931
1990ss 1,090 3,741
2000ss 1,824 8,121
2010ss 7,882 4,131
2020ss 4,508 371

Recent Annual Births (2014–present)

Year Killian Kiley
2014 545 433
2015 976 307
2016 1,382 216
2017 1,505 186
2018 1,229 145
2019 1,089 114
2020 899 108
2021 939 79
2022 902 68
2023 884 61
2024 884 55

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, 1915–2024.

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