Boy · English form of Killian
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Cillian
17,798births recorded
11Countries
2024Peak · Northern Ireland
#9Ireland 2025
Cillian is the English form of Killian. 17,798 births recorded in 11 countries, mostly in Ireland. It peaked in 2024 (Northern Ireland).
Popularity by country
Countries
| Country | Total births | Latest rank | Peak year |
|---|---|---|---|
| 🇮🇪 Ireland | 8,356 | #9 | 2024 |
| 🇺🇸 United States | 4,090 | #507 | 2024 |
| 🏴 England & Wales | 2,522 | #217 | 2024 |
| 🇬🇧 Northern Ireland | 1,690 | #11 | 2024 |
| 🏴 Scotland | 495 | #100 | 2024 |
| 🇫🇷 France | 295 | #2059 | 2023 |
| 🇨🇦 Ontario | 197 | #397 | 2024 |
| 🇨🇦 Alberta | 66 | #354 | 2022 |
| 🇨🇦 British Columbia | 50 | #290 | 2023 |
| 🇸🇪 Sweden | 25 | #559 | 2025 |
| 🇨🇦 Québec | 12 | #607 | 2025 |
Spellings
- 1Cillian17,782
- 2Cillían16