Cillian
Does Cillian flow with your last name?
A distinctive girl name with a rare, memorable quality.
Reviewed by the NamingEverything Editorial Team · Updated
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Nicknames
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Meaning & Origin
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Browse nicknames →Historical Record
Cillian first appeared in US Social Security records in 2024.
Over 6 babies have been named Cillian in the United States since SSA records began.
Today, Cillian is a new entry on the US charts , currently ranked #24,574 for girl names in the US .
Popularity Over Time
Year-by-year popularity data will be available soon.
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See all →"uisce beatha (life water)"
"son of the noble one"
"Dark river"
"heavenly sun, sun of the sky"
"immaculate conception"
Compare Cillian with:
Quick Facts
- Gender
- Girl
- Popularity Rank
- #24,574
- Total SSA Count
- 6
Nicknames
Middle Name Ideas
Suggested pairings based on syllable flow and style
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Timeless choice, smooth 2-1 syllable flow
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Timeless choice, extended 2-3 combo
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Timeless choice, smooth 2-2 syllable flow
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Timeless choice, smooth 2-2 syllable flow
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Timeless choice, smooth 2-2 syllable flow
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Timeless choice, smooth 2-2 syllable flow
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Timeless choice, smooth 2-1 syllable flow
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Timeless choice, extended 2-3 combo
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Timeless choice, extended 2-3 combo
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Timeless choice, extended 2-3 combo
Sibling Match
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Also a Boy Name
Cillian is also used as a boy name, ranked #464.
View Cillian as a boy name →Similar Names
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View all →Irish Gaelic origin
"uisce beatha (life water)"
#24,740 in US
Old English origin
"son of the noble one"
#24,558 in US
Welsh origin
"Dark river"
#24,389 in US
Modern American/Hawaiian origin
"heavenly sun, sun of the sky"
#24,653 in US
Spanish/Latin origin
"immaculate conception"
#24,394 in US
Iraya Mangyan of Mindoro origin
"name of indigenous Philippine people"
#24,676 in US
Hebrew origin
"mine, belonging to me"
#24,453 in US
Save Your Name Card
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Frequently Asked Questions About Cillian
Is Cillian a boy or girl name?
How popular is the name Cillian?
What are common nicknames for Cillian?
Is Cillian a common or rare name?
About the Name Cillian
Cillian is a girl name .
Is Cillian a boy or girl name? Cillian is used as both a girl and boy name. As a girl name, it ranks #24,574 in popularity. As a boy name, it ranks #464. Cillian is more commonly used as a boy name.
Cillian is currently ranked #24,574 in popularity for girl names in the United States.
Common nicknames for Cillian include Cil, Cill, Cilly, Cillie, Ian, Iany, Ianie, Ciy, Ciie, and Cilkins. These shorter forms provide casual alternatives while keeping the elegance of the full name.
Keep Exploring
Recommended for Parents
Start a registry
Free welcome box on Amazon
Baby Name Wizard
Names that actually age well
Nursery name sign
Personalized wooden letters
We may earn a commission from these links.
Sources
- U.S. Social Security Administration — National Baby Names Data (popularity rankings and historical trends)
- NamingEverything editorial research and analysis