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By Grace Royal · Jul 2026

Cillian

GenderGirl
Also a boy's nameShow me Cillian as a boy's name
NB Rank#32191

On Nameberry

About Cillian

The name Cillian peaked for girls at #13797 in 2024. Cillian is also used for boys, ranking #507 in 2025.

Cillian in blog posts

One-of-a-Kind Baby Names Stand Out
Most Popular British Names A to Z
May Names Celebrate Nature!
British Names: the Ultimate Guide
The Baby Names That Should Be on Everyone's List

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