US rank #440 Unisex name Peak 2024 16,788 births

Kieran — #440 US boys' name

16,788 babies named Kieran in U.S. Social Security records since 1918, with the highest year being 2024. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

1910s81920s381930s481940s811950s2221960s3741970s4161980s6101990s21772000s44122010s52792020s3123
#440
of 14,243 boys in use

More common than 97% of names given to boys today.

2010s
Peak decade

31% of everyone ever named Kieran was born in this single decade.

2024
Single peak year

713 babies were named Kieran in 2024 — its busiest year on record.

What the Data Says About Kieran

The Social Security Administration has registered 16,788 babies named Kieran between 1918 and 2024, spanning 107 consecutive years of U.S. birth records. As a boy's name, Kieran currently holds the #440 rank among boys for 2024. The name reached its historical peak in 2024, when 713 babies received it in a single year. Kieran is classified as unisex in SSA records: the opposite-sex variant accounts for 1,594 additional births since 1949.

Decade-level aggregation shows that Kieran performed strongest in the 2010s, accumulating 5,279 births during that ten-year window. Across the 12 decades of recorded activity, Kieran shows notable generational variation in parental adoption. Geographically, the name is most concentrated in New York, which accounts for 2,229 births — the largest state-level total in the dataset — followed by California and Pennsylvania. In total, SSA state-level files list Kieran in 47 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Kieran in our reference dataset. These figures derive from SSA's annual national and state-level name files, which include any name appearing at least five times in a given year or state-year; names below that threshold are suppressed for privacy and therefore excluded from the totals shown here. The 16,788 total represents a lower bound — actual usage may be higher in years or states where the count fell below the disclosure floor. This page is provided for informational and research purposes only and does not constitute personal, legal, or naming advice.

Kieran at a glance

Top 1,000 boys' name

Total births

16,788

Since 1918

107 years of records

Peak year

2024

713 births that year

Strongest decade: 2010s

Current rank

#440

Among boys

As of 2024

Active since

1918

Recorded for 107 years

Last year on file: 2024

Kieran popularity over time — boys

Annual U.S. births registered with the Social Security Administration · 2024–1918

Top 1,000 boys' name
Peak year (2024)
713
Annual births at peak — across 107 years of records
-2000200400600800 202420111998198519721959194619291918 8

Kieran popularity over time — girls

1,594 total births recorded since 1949 (Kieran as girls' name)

Unisex variant — 1,594 births
020406080100 202420162008200019921984197419651949 5

Kieran by decade

Total births in each ten-year window — peak vs trough at a glance

Peak: 2010s
Peak decade
2010s
5,279 births that decade — 31% of Kieran's all-time total
1910s81920s381930s481940s811950s2221960s3741970s4161980s6101990s21772000s44122010s52792020s3123

Kieran by state

Where Kieran concentrates geographically — total births since 1918

Geographically diffuse
Top 8 states by recorded births for the name Kieran
Rank State Visual share Births Share of total
#1 New York
2,229 13.3%
#2 California
1,835 10.9%
#3 Pennsylvania
1,012 6.0%
#4 New Jersey
858 5.1%
#5 Texas
669 4.0%
#6 Illinois
539 3.2%
#7 Minnesota
539 3.2%
#8 Florida
525 3.1%
New York share of Kieran's total US births 13.3%
Even split

2,229 of 16,788 births nationwide. Compared to a flat distribution across 47 reporting states.

Kieran appears in 47 states. Explore state details →

Frequently Asked Questions

How popular is the name Kieran?
16,788 babies have been named Kieran since 1918. It currently ranks #440 among boys. The peak year was 2024 with 713 births.
When was Kieran most popular?
Kieran was most popular in the 2010s decade with 5,279 total births. The single peak year was 2024.
Where is Kieran most popular?
The top states for the name Kieran are New York (2,229 births), California (1,835 births), Pennsylvania (1,012 births).
Is Kieran a unisex name?
Yes, Kieran is used for both boys and girls. As a boy's name it has 16,788 births, and as a girl's name it has 1,594 births.
How long has the name Kieran been used?
Kieran has been recorded in Social Security data since 1918, spanning 107 years of data through 2024.
What names are similar to Kieran?
Names with a similar sound or spelling include Kieth, Kiel, Kiefer, Kiernan, and 4 more. These share a common prefix and are also used for boys.

Keep exploring Kieran

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Data Sources

Data as of 2024. Source: U.S. Social Security Administration (SSA).

Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications — National Data, 1918–2024 (ssa.gov/oact/babynames). National-level data includes all names with 5 or more occurrences in a given year.

State-level: Source: U.S. Social Security Administration, Baby Names — State-Level Files (namesbystate.zip). Includes all names with 5 or more occurrences per state per year; rarer names are excluded for privacy.