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Caoilainn

femaleStatistical record

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

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

Falling

among girls in England and Wales · 2004–2015

England and Wales · Girls rank from 2004 to 2015, ranging from #4598 to #4798.20042005201120142015#4598#4798
How to read this chart#1#500no figure publishedUp means a stronger rankBottom is this name's lowest,not zero
  • A rank is a position in one registrar's list for one year.
  • Ranks from different countries are separate scales, so compare shapes, not numbers.
  • A rise in rank can be a small change in births, especially far down a list.
View as table
England and Wales · Girls rank by year
YearRank
2004#4598
2005#4798
2011#4764
2014#4684
2015#4736

VerifiedSource: Office for National Statistics — Baby Names in England and Wales.Confidence: high.

See all England and Wales names · Source: Office for National Statistics — Baby Names in England and Wales

What the data shows

FallingEngland and Wales · Girls

Recorded in official data among girls in Republic of Ireland in 18 of the 23 years from 1997 to 2019.

In 2015: #660 among girls in Republic of Ireland, #4736 among girls in England and Wales.

Official data from 3 national registrars across 3 regions, 1997–2019 · Office for National Statistics. Data sources

Year-by-year storyFirst recorded, most recent, each country and each decade

Popularity journey

  1. First recorded1997

    First recorded at #496 among girls in Republic of Ireland in 1997 — the earliest year that source publishes this name, not necessarily the earliest it was used.

    Republic of Ireland · Girls

  2. Highest recorded1997–2019

    Highest recorded position: #300 among girls in Republic of Ireland, in 2005 (recorded 1997–2019).

    Republic of Ireland · Girls

  3. Most recent2019

    Most recently recorded at #621 among girls in Republic of Ireland, in 2019.

    Republic of Ireland · Girls

Full data tableEvery published rank and count

Popularity data

Official popularity data is available for 3 regions, from 1997 to 2019. Highest recorded position: #300 in Republic of Ireland in 2005.

Caoilainn'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.
YearRegionCategoryRankBirths registeredConfidenceStatus
2015England and Walesfemale#47364HighVerified
2014England and Walesfemale#46844HighVerified
2011England and Walesfemale#47644HighVerified
2005England and Walesfemale#47983HighVerified
2004England and Walesfemale#45983HighVerified
2007Northern Irelandfemale#4133HighVerified
2000Northern Irelandfemale#3483HighVerified
2019Republic of Irelandfemale#6215HighVerified
2018Republic of Irelandfemale#6295HighVerified
2017Republic of Irelandfemale#7344HighVerified
2016Republic of Irelandfemale#8683HighVerified
2015Republic of Irelandfemale#6605HighVerified
2014Republic of Irelandfemale#42710HighVerified
2013Republic of Irelandfemale#5876HighVerified
2012Republic of Irelandfemale#31716HighVerified
2010Republic of Irelandfemale#5557HighVerified
2009Republic of Irelandfemale#6415HighVerified
2008Republic of Irelandfemale#5467HighVerified
2007Republic of Irelandfemale#40410HighVerified
2006Republic of Irelandfemale#4318HighVerified
2005Republic of Irelandfemale#30012HighVerified
2001Republic of Irelandfemale#6063HighVerified
1999Republic of Irelandfemale#5283HighVerified
1998Republic of Irelandfemale#3805HighVerified
1997Republic of Irelandfemale#4964HighVerified

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

Where Caoilainn is officially recorded

3 official registrars have recorded Caoilainn, between 1997 and 2019, in 21 of those 23 years. Each registrar publishes for its own population on its own methodology, so the positions below are each one country's own ranking and are not comparable with one another.

Republic of IrelandRepublic of Ireland: recorded in 1997Republic of Ireland: recorded in 1998Republic of Ireland: recorded in 1999Republic of Ireland: recorded in 2001Republic of Ireland: recorded in 2005Republic of Ireland: recorded in 2006Republic of Ireland: recorded in 2007Republic of Ireland: recorded in 2008Republic of Ireland: recorded in 2009Republic of Ireland: recorded in 2010Republic of Ireland: recorded in 2012Republic of Ireland: recorded in 2013Republic of Ireland: recorded in 2014Republic of Ireland: recorded in 2015Republic of Ireland: recorded in 2016Republic of Ireland: recorded in 2017Republic of Ireland: recorded in 2018Republic of Ireland: recorded in 2019Republic of Ireland: highest position in 2005Northern IrelandNorthern Ireland: recorded in 2000Northern Ireland: recorded in 2007Northern Ireland: highest position in 2000England and WalesEngland and Wales: recorded in 2004England and Wales: recorded in 2005England and Wales: recorded in 2011England and Wales: recorded in 2014England and Wales: recorded in 2015England and Wales: highest position in 200419972019
Each mark is a year the registrar recorded the name; the diamond is that registrar's highest position. Gaps can mean a year was not published, not that the name went unused.
RegistrarRecordedYearsIts own highest position
Republic of Ireland1997–201918#300 in 2005
Northern Ireland2000–20072#348 in 2000
England and Wales2004–20155#4598 in 2004
Names measured beside itNeighbours, comparisons, related names and shared trajectories

What is known about Caoilainn

How to read this
How often it is registered
Official record
3 official registrars, 1997–2019.
Meaning
Not established
Not researched yet.
Origin
Not established
Not researched yet.
Pronunciation
Not established
Not recorded yet.

A claim marked not established does not mean the name lacks a meaning or is not widely used — only that Namewise has not 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.

Official popularity data is available for 3 regions, from 1997 to 2019. Highest recorded position: #300 in Republic of Ireland in 2005. Source data last verified 2026-07-22.