Girl · #9,301 in 2026

Cailin

Name: Popularity of the name Cailin in U.S. births, 1880–2026
Creator: U.S. Social Security Administration
License: https://www.ssa.gov/foia/
Keywords: Cailin, baby name, popularity, U.S., SSA, rankings

Current Rank

#9,301

Peak Rank

#1,161 (2003)

Total Babies

5-Yr Trend

-56%

1968

First Year

2026

Last Year

2003

Peak Year

#1161

Peak Rank

Total Count

Years Active

The Story of Cailin

Cailin first appeared in U.S. Social Security Administration records as a baby girl name in 1968, with 9 babies given the name that year. Its peak popularity came in 2003, when 164 Cailins were born — ranking #1,272 that year. As of 2026, Cailin ranks #9,301 for baby girls with 8 births, falling sharply (-56%). In total, more than 4K Cailins have been born in the U.S. since records began in 1880, spanning the 1960s through the 2020s.

Popularity Over Time

Popularity by State

Top 10

11-50

51-100

101-500

500+

No data

Names that sound like Cailin

Phonetically similar names — useful when Cailin is the vibe but a different syllable count or letter feel might suit better. Linked entries have a profile on Peek a Name.

Source: Datamuse . Phonetic similarity ranking, not curated.

Frequently Asked Questions about Cailin

What does the name Cailin mean?

Cailin is a girl's name that has been used in U.S. records since 1968. Behind the Name doesn't list a specific etymology, but the name has remained in use across multiple decades.

How popular is Cailin in 2026?

In 2026, Cailin ranks #9,301 among girls' names in the U.S., with 8 babies given the name that year.

When was Cailin most popular?

Cailin reached its peak popularity in 2003, ranking #1,161 that year with 164 babies given the name.

In which U.S. states is Cailin most popular?

Cailin has historically been most popular in Massachusetts, Connecticut, Washington. Rankings vary year to year, but these states show the strongest concentration of births named Cailin.

Is Cailin a unisex name?

In U.S. Social Security records, Cailin is primarily a girl's name. We don't have meaningful data for it as a boy's name.

What names go well with Cailin?

Names that share a similar style or popularity range with Cailin include Lawrence, Ranada, Briseida. These pairings are based on rank proximity and naming era in U.S. data.

About the name Cailin

Cailin is a girl baby name tracked by the U.S. Social Security Administration. It first appeared in SSA records in 1968 and has accumulated 4K births in the dataset. Cailin's peak popularity came in 2003 when it ranked #1,161. Use the chart and map above to compare Cailin's trajectory across years and U.S. states, or browse the related names section to discover similar choices.

Continue exploring

Data sources

Birth statistics (counts, ranks, years 1880–2026) — U.S. Social Security Administration . Predictions for years not yet released by SSA are computed by Peek a Name from historical trends; we update with official data as soon as it ships.
Etymology, cultural origins, and related forms — Behind the Name (used under their public API terms).
Meaning prose and editorial summary — Wikipedia article extracts, licensed under CC BY-SA 3.0 .
Predicted nationality distribution — Nationalize.io .
Phonetically similar names — Datamuse .

Peek a Name aggregates and presents the above data for informational purposes. Statistical predictions and external attributions are clearly labelled where shown; we make no guarantee of accuracy beyond what each source provides.