Cilian

maleStatistical record

What official birth registration shows about Cilian: which national registrars published it, in which years, and how its recorded position changed.

No researched meaning, origin or pronunciation yet — what that means.

1registrar recorded it
2times a registrar ranked it
10years from first to last
#379highest recorded position

Republic of Ireland · Boys

Falling

among boys in Republic of Ireland · 1999–2008

View as table

Republic of Ireland · Boys rank by year
Year	Rank
1999	#379
2008	#698

VerifiedSource: CSO Ireland — Irish Babies' Names.Confidence: high.

See all Republic of Ireland names · Source: CSO Ireland — Irish Babies' Names

What the data shows

FallingRepublic of Ireland · Boys

Recorded in official data among boys in Republic of Ireland in 2 of the 10 years from 1999 to 2008.

Official data for Republic of Ireland, 1999–2008 · CSO Ireland. Data sources

Popularity journey

First recorded1999
First recorded at #379 among boys in Republic of Ireland in 1999 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Boys
Highest recorded1999–2008
Highest recorded position: #379 among boys in Republic of Ireland, in 1999 (recorded 1999–2008).
Republic of Ireland · Boys
Most recent2008
Most recently recorded at #698 among boys in Republic of Ireland, in 2008.
Republic of Ireland · Boys

Popularity data

Recorded in official data for Republic of Ireland from 1999 to 2008. Highest recorded position: #379 in Republic of Ireland in 1999.

Cilian's recorded popularity observations by year, region and administrative category, including rank, registered births, source confidence and when each region's data was last reviewed.
Year	Region	Category	Rank	Births registered	Confidence	Status
2008	Republic of Ireland	male	#698	3	High	Verified
1999	Republic of Ireland	male	#379	3	High	Verified

Republic of Ireland hub — collected by CSO Ireland

See methodology and data sources for how popularity data is collected and what "confidence" means.

Cilian was ranked #379 in Republic of Ireland · Boys in 1999. These are the names immediately either side of it on that published list — a fact about the registrar's own output, not a similarity judgement.

Abdul#379
Ahmad#379
Albert#379
Alexandru#379

What's not yet available

Meaning
Origin
Pronunciation
Nicknames and spelling variants

Absence from this list does not mean the name isn't genuinely meaningful or widely used — only that Namewise hasn't sourced and reviewed that content yet. Absence from a specific year or geography above does not prove zero use there either; official statistics only publish names above a minimum threshold.

Recorded in official data for Republic of Ireland from 1999 to 2008. Highest recorded position: #379 in Republic of Ireland in 1999. Source data last verified 2026-07-25.