Cilas vs Cillian

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

Name A

Cilas

Boy name

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Name B

Cillian

Boy name · Rank #463

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Which name is more popular?

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

Births by Decade

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

Recent Annual Births (2014–present)

Year Cilas Cillian
2014 — 87
2015 — 121
2016 7 177
2017 10 170
2018 — 193
2019 6 186
2020 5 228
2021 — 340
2022 6 352
2023 6 476
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, 2009–2023.

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