Girls' name · since 1997
Caoilinn
46 babies named Caoilinn in U.S. Social Security records since 1997, with the highest year being 1997. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
- #35,871 of 72,339
- all-time among girls
- 46
- born since 1997
- 2010s
- peak decade
Caoilinn sits outside today's top ranks for girls, with 46 recorded since 1997.
Caoilinn has 46 recorded births among girls since 1997, 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 1997 to 2016.
- #35,871 of 72,339 all-time among girls
- 46 born since 1997
- 2010s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Caoilinn ranks #35,871 of 72,339 girls' names by all-time recorded births (highest first). 46 born since 1997, peaking in the 2010s.
- #35,871 of 72,339
- all-time among girls
- 46
- born since 1997
- 2010s
- peak decade
Caoilinn's 46 recorded births place it above 50.1% of the 72,339 girls names in the full SSA archive.
No state rows cleared SSA’s public reporting threshold for this name.
Caoilinn's usage pattern, beyond the headline number
Caoilinn splits its recorded history at 2012: 50% of all births land in the more recent half, 50% in the earlier half, an evenly balanced pattern over time. The single quietest year was 1999 (5 births) -- compare that against the 1997 peak of 7 for a sense of just how much the name's popularity has swung.
Caoilinn popularity over time
Annual U.S. births registered with the Social Security Administration · 1997–2016
- Peak year (1997)
- 7
- Annual births at peak, across 20 years of records
Caoilinn by decade
2010s is the heaviest window (23 births, 50% of the file).
2010s was Caoilinn's strongest decade.
23 babies received the name during that ten-year window, about 50% of all-time use.
Caoilinn births by decade
Total births in each ten-year window
- 1990s
1990s
12 births
- 2000s
2000s
11 births
- 2010s
2010s
23 births
What this shows Peak: 2010s at 23 births (50% of all-time use).
Frequently Asked Questions
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Keep exploring Caoilinn
Nearby Names Like Caoilinn
Names with a similar sound, spelling, or feel to Caoilinn
Compare Caoilinn side by side: Caoilinn vs Caoimhe Caoilinn vs Caoilainn Caoilinn 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 Caoilinn: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~1997)
Similar record span (~19 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, 1997–2016 (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 Caoilinn 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.