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.
Which name is more popular?
| Metric | Cillian | Cilas |
| Current Rank | #463 | Unranked |
| Total Births (all years) | 4,084 | 57 |
| Peak Year | 2024 | 2017 |
| Peak Year Births | 668 | 10 |
| Peak Decade | 2020s | 2010s |
| Gender | Boy | Boy |
| First Recorded Year | 1995 | 2009 |
Births by Decade
| Decade | Cillian | Cilas |
| 1990s | 10 | - |
| 2000s | 208 | 5 |
| 2010s | 1,204 | 35 |
| 2020s | 2,662 | 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 | 341 | - |
| 2022 | 353 | 6 |
| 2023 | 477 | 6 |
| 2024 | 668 | - |
| 2025 | 595 | - |