Total births
91
Girls' name · since 2004
Caoilainn
Caoilainn has 91 recorded births since 2004 in federal Social Security data, most heavily in 2013 -- full year-by-year trend, decade aggregates, and state rankings follow.
- 91
- total births
- 2004–2016
- years on record
- 2010s
- peak decade
- 53%
- born in that decade
Caoilainn is not among the current top-ranked girls names; 91 have been recorded since 2004.
Caoilainn has 91 recorded births among girls since 2004, per the U.S. Social Security Administration, though it falls outside today's most-used girls names, busiest in the 2010s -- see the year-by-year trends, decade totals, and state-level distribution below, all drawn directly from SSA birth-registration files spanning 2004 to 2016.
- 91 total births
- 2004–2016 years on record
- 2010s peak decade
- 53% born in that decade
Data updated Jul 2026
The verdict
91 girls have been named Caoilainn since 2004, peaking in the 2010s, last recorded in 2016.
- 91
- total births
- 2004–2016
- years on record
- 2010s
- peak decade
- 53%
- born in that decade
2010s
Peak decade
53% of everyone ever named Caoilainn was born in this single decade.
2013
Single peak year
15 babies were named Caoilainn in 2013 - its busiest year on record.
Caoilainn's usage pattern, beyond the headline number
Caoilainn splits its recorded history at 2009: 60% of all births land in the more recent half, 40% in the earlier half, a lean toward present-day use rather than a passing spike. The single quietest year was 2008 (5 births) -- compare that against the 2013 peak of 15 for a sense of just how much the name's popularity has swung.
Caoilainn at a glance
Last recorded 2016Peak year
2013
Current rank
Unranked
Active since
2004
Caoilainn popularity over time
Annual U.S. births registered with the Social Security Administration · 2004–2016
- Peak year (2013)
- 15
- Annual births at peak, across 13 years of records
Caoilainn by decade
Total births in each ten-year window, peak vs trough at a glance
2010s was Caoilainn's strongest decade.
48 babies received the name during that ten-year window, about 53% of all-time use.
Caoilainn births by decade
Total births in each ten-year window
- 2000s
2000s
43 births
- 2010s
2010s
48 births
What this shows Peak: 2010s at 48 births (53% of all-time use).
Frequently Asked Questions
How popular is the name Caoilainn? ▼
91 babies have been named Caoilainn since 2004. It was last recorded in 2016. The peak year was 2013 with 15 births.
When was Caoilainn most popular? ▼
Caoilainn was most popular in the 2010s decade with 48 total births. The single peak year was 2013.
How long has the name Caoilainn been used? ▼
Caoilainn has been recorded in Social Security data since 2004, spanning 13 years of data through 2016.
What names are similar to Caoilainn? ▼
Names with a similar sound or spelling include Caoimhe, Caoilinn, Caomi. These share a common prefix and are also used for girls.
Keep exploring Caoilainn
Nearby Names Like Caoilainn
Names with a similar sound, spelling, or feel to Caoilainn
Compare Caoilainn side by side: Caoilainn vs Caoimhe Caoilainn vs Caoilinn Caoilainn vs Caomi
Related Names
Names with a similar number of total births
Data Sources
Data as of July 2026. Source: U.S. Social Security Administration (SSA).
According to the Social Security Administration, this profile draws directly from the agency's public-use baby-name files (updated June 2026). See our methodology for the full extraction, aggregation, and privacy-suppression rules.
Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications, National Data, 2004–2016 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Caoilainn: Baby Name Since 2004 - 91 Births, Peak 2013." NameAlmanac. Accessed via https://namealmanac.com/name/caoilainn. Licensed CC BY-SA 4.0.
Name Almanac is rendered directly from the Social Security Administration's public baby-name files, no number is typed in by an editor. This profile for Caoilainn draws directly on SSA national and state-level files, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of July 2026.