One-of-a-Kind Baby Names Stand Out

Most Popular British Names A to Z

May Names Celebrate Nature!

Pop Culture Influences Rising Baby Names

British Names: the Ultimate Guide

The Baby Names That Should Be on Everyone's List

Best K Names for Boys

Irish Baby Names: Rare in the US

Rare Names With Popular Nicknames

New Popular Irish Names Revealed

Irish Baby Names Celebrate St. Patrick's Day

Cillian

The name Cillian peaked for girls at #13797 in 2024. Cillian is also used for boys, ranking #463 in 2024.

The name Cillian is a boy's name of Irish origin meaning "war strife or church".

Irish Names

Names Ending in -ian for Boys

Irish Names for Boys

7 Letter Boy Names

Names Ending in N for Boys

Names That Mean War

Names That Mean Church

Names That Mean Strife

Two Syllable Names for Boys

Names that Peaked in 2021

Boy Dog Names That Start With C

Dog Names That Start With C

Animal Names for Boys

Names that Peaked in 2022

Names that Peaked in 2023

Irish Names that Start With C

Cillian is one of the native Irish names that, along with Aiden and Declan, is becoming an unlikely favorite in contemporary America. The Killian spelling has been more popular in the US, but Cillian's star is rising, perhaps thanks to Irish actor Cillian Murphy, star of Oppenheimer and Peaky Blinders.
 There are several Saint Cillians, including one who was sent to Bavaria to convert the natives and was martyred for his trouble. 
 Patrick Woulfe, a Catholic priest who was instrumental in reviving native Irish names in that country after the war for independence from England in the 1920s, theorized that Cillian might also be related to a Gaelic name meaning war.

Favorite Names on Nameberry

Top Baby Names 2021

Handsome Boy Names

Trending Boy Names

Irish Names That Start with C

Gaelic Names

International Baby Boy Names

New Baby Names

Boy Names That Can Start with a C or a K

Dog Names

British Boy Names

Telegraph Baby Names 

Unique Irish Names 

Uncommon Boy Names

Three Syllable Boy Names

Irish Boy Names (with Meanings)

European Names for Girls and Boys

Fastest-Rising Boy Names 2024

European Boy Names

Names With Lots of Spellings

Irish

Nameberry

Unique

Future

England

scotland

Ireland

The name Cillian is currently ranked #463 in U.S. births. and peaked for boys at #463 in 2024. The name is most popular in CILLIAN, CILLIAN, and CILLIAN. Cillian is occasionally used for girls in 2024.

Killian

Cillian

The name Cillian in Nameberry Blog Posts

More Lists containing Cillian

Advanced Search

Find your type.