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KILL-ee-an
Cillian
OriginIrish
Meaning"war strife or church"
GenderBoy
US Rank#507
Top 1000
NB Rank#130
On Nameberry
About Cillian
Variation of Killian
Popularity & trends
US popularity — history
US rank, lower is more popular · SSA data 2014–2025
Actual · SSA
20142025
18802025
Data table
| Year | US rank | Births | Per million |
|---|---|---|---|
| 2014 | #1,733 | 87 | 45.3 |
| 2015 | #1,418 | 121 | 63.1 |
| 2016 | #1,107 | 177 | 93.3 |
| 2017 | #1,126 | 170 | 91.8 |
| 2018 | #1,051 | 193 | 106.3 |
| 2019 | #1,077 | 186 | 103.7 |
| 2020 | #957 | 228 | 132.1 |
| 2021 | #749 | 340 | 194.3 |
| 2022 | #737 | 352 | 201.6 |
| 2023 | #594 | 476 | 278.3 |
| 2024 | #463 | 668 | 387.7 |
| 2025 | #507 | 595 | 348.3 |
World rankings
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Famous Cillians
- Cillian Murphy
Irish actor
- Cillian Sheridan
Irish footballer
- Cillian Vallely
Irish musician of band Lunasa
Cillian in pop culture
- Cillian Boyd
character in the Chaos Walking series by Patrick Ness
Cillian in blog posts
Community discussions
Cillian on more lists
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