Cillian
BoyIrish
Cillian is a boy name of Irish origin meaning "Little church".
About this name
Gender
Boy
Language
Irish
Popularity
73 / 100
Syllables
2
Length
7 letters
Meaning
Little church
Etymology
Killian or Kilian, as a given name, is an Anglicized version of the Irish name Cillian. The name Cillian was borne by several early Irish saints including missionaries to Artois (France) and Franconia (Germany) and the author of the life of St Brigid.
Famous People Named Cillian
- Cillian Murphy — Irish actor (born 1976)
- Cillian Sheridan — Irish footballer
Frequently Asked Questions About Cillian
What does the name Cillian mean?
Cillian means "Little church", and is of Irish origin.
What is the origin of the name Cillian?
Cillian originates from Irish.
Is Cillian a boy or girl name?
Cillian is typically used as a boy name.
Are there famous people named Cillian?
Yes — notable people named Cillian include Cillian Murphy (Irish actor, born 1976) and Cillian Sheridan (Irish footballer).
Last updated: June 2026