Cillian
A boy's name of Irish origin, ranked #507 in the US in 2025.
- Rank in 2025
- #507
- Best ever
- #463 in 2024
- US births since 1880
- 4,090
- Born in 2025
- 595
- Trend
- Rising last 10 years
- Given to
- 100% boys
Meaning
- Battle
Births 1995–2025
Peak 674 in 2024. Rising over the last ten years.
Where in the US
- NY394
- CA386
- TX215
- MA213
- PA195
Recorded births, states with 5+ per year only. State records cover 77% of this name's national total.