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.
- #28,139 of 72,339
- all-time among girls
- 91
- born since 2004
- 2010s
- peak 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.
- #28,139 of 72,339 all-time among girls
- 91 born since 2004
- 2010s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Caoilainn ranks #28,139 of 72,339 girls' names by all-time recorded births (highest first). 91 born since 2004, peaking in the 2010s.
- #28,139 of 72,339
- all-time among girls
- 91
- born since 2004
- 2010s
- peak decade
Caoilainn's 91 recorded births place it above 60.95% of the 72,339 girls names in the full SSA archive.
No state rows cleared SSA’s public reporting threshold for this name.
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 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
2010s is the heaviest window (48 births, 53% of the file).
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
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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
Nationwide names with similar peak year or record span
Two nationwide peer axes for Caoilainn: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~2013)
Similar record span (~12 yrs)
Peak year is the single SSA year with the most births for that name; record span is first-to-latest year in the national files, not a recommendation or shared origin claim.
Data Sources
Data as of August 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).
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 August 2026.