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Cillian

↑ Rising

Mostly a boy name · 0% girls / 100% boys since 1995

All-time babies

4,090

since 1995

Boys rank, 2025

#507

595 babies

Peak year (boys)

2024

668 babies, #463

Letters

7

2 syllables

Babies named Cillian per year

Popularity rank over time

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Names that sound like Cillian

Colleen 163,084 babies ever Colin 134,151 babies ever Collin 81,962 babies ever Celine 18,522 babies ever Cullen 16,703 babies ever Celina 16,301 babies ever Callum 16,089 babies ever Callan 12,634 babies ever Coleen 11,998 babies ever Callen 10,105 babies ever Callahan 7,031 babies ever Cailyn 5,554 babies ever