Cillian vs Cilas

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

Name A

Cillian

Boy name · Rank #463

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Name B

Cilas

Boy name

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Which name is more popular?

Metric Cillian Cilas
Current Rank #463 Unranked
Total Births (all years) 3,486 56
Peak Year 2024 2017
Peak Year Births 668 10
Peak Decade 2020ss 2010ss
Gender Boy Boy
First Recorded Year 1995 2009

Births by Decade

Decade Cillian Cilas
1990ss 10 —
2000ss 208 5
2010ss 1,204 34
2020ss 2,064 17

Recent Annual Births (2014–present)

Year Cillian Cilas
2014 87 —
2015 121 —
2016 177 7
2017 170 10
2018 193 —
2019 186 6
2020 228 5
2021 340 —
2022 352 6
2023 476 6
2024 668 —

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, 1995–2024.

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