US rank #8692 Unisex name Peak 2009 337 births

Kaydyn — #8692 US boys' name

337 babies named Kaydyn in U.S. Social Security records since 2003, with the highest year being 2009. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

2000s842010s1862020s67
#8692
of 14,243 boys in use

More common than 39% of names given to boys today.

2010s
Peak decade

55% of everyone ever named Kaydyn was born in this single decade.

2009
Single peak year

29 babies were named Kaydyn in 2009 — its busiest year on record.

What the Data Says About Kaydyn

The Social Security Administration has registered 337 babies named Kaydyn between 2003 and 2024, spanning 22 consecutive years of U.S. birth records. As a boy's name, Kaydyn currently holds the #8692 rank among boys for 2024. The name reached its historical peak in 2009, when 29 babies received it in a single year. Kaydyn is classified as unisex in SSA records: the opposite-sex variant accounts for 228 additional births since 2000.

Decade-level aggregation shows that Kaydyn performed strongest in the 2010s, accumulating 186 births during that ten-year window. Across the 3 decades of recorded activity, Kaydyn shows notable generational variation in parental adoption. Geographically, the name is most concentrated in Texas, which accounts for 5 births — the largest state-level total in the dataset — followed by . In total, SSA state-level files list Kaydyn in 1 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Kaydyn 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 337 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.

Kaydyn at a glance

Outside the top 1,000

Total births

337

Since 2003

22 years of records

Peak year

2009

29 births that year

Strongest decade: 2010s

Current rank

#8,692

Among boys

As of 2024

Active since

2003

Recorded for 22 years

Last year on file: 2024

Kaydyn popularity over time — boys

Annual U.S. births registered with the Social Security Administration · 2024–2003

Outside the top 1,000
Peak year (2009)
29
Annual births at peak — across 22 years of records
010203040 20242021201820152012200920052003 5

Kaydyn popularity over time — girls

228 total births recorded since 2000 (Kaydyn as girls' name)

Unisex variant — 228 births
0510152025 2019201620132010200720042000 5

Kaydyn by decade

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

Peak: 2010s
Peak decade
2010s
186 births that decade — 55% of Kaydyn's all-time total
2000s842010s1862020s67

Kaydyn by state

Where Kaydyn concentrates geographically — total births since 2003

Geographically diffuse
Top 1 states by recorded births for the name Kaydyn
Rank State Visual share Births Share of total
#1 Texas
5 1.5%
Texas share of Kaydyn's total US births 1.5%

5 of 337 births nationwide.

Frequently Asked Questions

How popular is the name Kaydyn?
337 babies have been named Kaydyn since 2003. It currently ranks #8692 among boys. The peak year was 2009 with 29 births.
When was Kaydyn most popular?
Kaydyn was most popular in the 2010s decade with 186 total births. The single peak year was 2009.
Where is Kaydyn most popular?
The top states for the name Kaydyn are Texas (5 births).
Is Kaydyn a unisex name?
Yes, Kaydyn is used for both boys and girls. As a boy's name it has 337 births, and as a girl's name it has 228 births.
How long has the name Kaydyn been used?
Kaydyn has been recorded in Social Security data since 2003, spanning 22 years of data through 2024.
What names are similar to Kaydyn?
Names with a similar sound or spelling include Kayden, Kayson, Kaysen, Kay, and 4 more. These share a common prefix and are also used for boys.

Keep exploring Kaydyn

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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, 2003–2024 (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.