Baby Names US
Unisex name ★ peaked 2012

Kaidyn

Gender Unisex · 33% girls Rank 2025 #2,157 Trend ↓ Falling 31%
Rank 2025
#2,157
among boys · ↓246 vs 2024
Babies in 2025
78
named Kaidyn · -21% vs 2024
How common
1 in 25,494
boys born in 2025
Peak year
2012
278 babies
All-time total
4,061
#2,695 all-time among boys
First recorded
1998
in Social Security records

Kaidyn popularity over time

4,061 babies have been named Kaidyn since 1998, according to official Social Security records. Switch measure to see births per year or the yearly rank.

Measure
Births per 1,000 babies of that sex, comparable across eras
0.040.080.110.1518801900192019401960198020002020BoysGirls
BoysGirls

By decade. Change compares yearly averages, so the current partial decade is on equal footing. Best rank is the name's best yearly rank within the decade.

Decade Girls Boys Total Per year Change Best rank
1880s – – – – – –
1890s – – – – – –
1900s – – – – – –
1910s – – – – – –
1920s – – – – – –
1930s – – – – – –
1940s – – – – – –
1950s – – – – – –
1960s – – – – – –
1970s – – – – – –
1980s – – – – – –
1990s 6 6 12 1 – #9,293
2000s 529 597 1,126 113 +9283% #1,326
2010s 681 1,544 2,225 223 +98% #1,043
2020s (to 2025) 104 594 698 116 -48% #1,468

Where Kaidyn is heading

A five-year projection from the recent trend in births per 1,000 boys (damped so it flattens over time), converted to babies at today's birth totals. The implied rank places that projection in the 2025 field. A projection, not a promise: real trends bend.

Year Projected babies Per 1,000 boys Implied rank
2026 62 0.04 outside top 500
2027 58 0.03 outside top 500
2028 55 0.03 outside top 500
2029 53 0.03 outside top 500
2030 51 0.03 outside top 500

Where Kaidyn is most popular

Boys named Kaidyn per 1,000 boys born in each state, 2021–2025. National average: 0.056 per 1,000. Strongest in Louisiana, Florida, and North Carolina.

Vs national average
well below below near national above well above no data

All 50 states and DC, sorted by rate. Counts are boys named Kaidyn born 2021–2025; the per-1,000 rate makes states of different sizes comparable, and the last column shows each state against the national average.

State Boys 2021–2025 Per 1,000 vs national
Louisiana 13 0.127 +128%
Florida 41 0.087 +55%
North Carolina 22 0.086 +55%
Georgia 18 0.071 +28%
Michigan 13 0.063 +14%
Tennessee 11 0.061 +9%
South Carolina 5 0.048 -13%
Alabama 5 0.046 -18%
Ohio 11 0.042 -25%
Pennsylvania 11 0.041 -26%
Illinois 10 0.039 -30%
Missouri 5 0.036 -35%
Texas 30 0.034 -39%
Virginia 5 0.026 -53%
California 22 0.024 -57%
New York 10 0.023 -59%
Alaska – – –
Arkansas – – –
Arizona – – –
Colorado – – –
Connecticut – – –
District of Columbia – – –
Delaware – – –
Hawaii – – –
Iowa – – –
Idaho – – –
Indiana – – –
Kansas – – –
Kentucky – – –
Massachusetts – – –
Maryland – – –
Maine – – –
Minnesota – – –
Mississippi – – –
Montana – – –
North Dakota – – –
Nebraska – – –
New Hampshire – – –
New Jersey – – –
New Mexico – – –
Nevada – – –
Oklahoma – – –
Oregon – – –
Rhode Island – – –
South Dakota – – –
Utah – – –
Vermont – – –
Washington – – –
Wisconsin – – –
West Virginia – – –
Wyoming – – –

State counts come from the Social Security Administration's state files, which omit any state-year with fewer than five babies of a name, so small states can undercount slightly.

The story of Kaidyn

Kaidyn is rare for boys in the United States, ranked #2,157 in 2025 with 67 babies given the name. It is currently declining compared with a decade ago.

Since 1998, 4,061 American babies have been named Kaidyn, about 67% boys and 33% girls, making it a genuinely unisex name. Its peak came in 2012, when 278 newborns received the name, the signature sound of the 2010s.

The chart above shows the full history: the popularity view (births per 1,000 babies) is the honest comparison across generations, since total US births have changed enormously since 1880. Switch to the rank view to see where Kaidyn stood among all boys' names in any year, or use the compare tool to plot it against other names.

How old are people named Kaidyn?

The median living Kaidyn is about 12 years old; half are between 7 and 16. An estimated 4,000 people named Kaidyn are alive in the United States today.

median 12 020406080100

Estimated from births per year and Social Security period life tables; an approximation of the living age distribution, by age in years.

Kaidyn year by year

Every year since 2001, and five-year steps back to 1880. Rank is within each sex.

Year Girls Girls rank Boys Boys rank
2025 11 #9,144 67 #2,157
2024 16 #7,080 83 #1,911
2023 14 #7,820 123 #1,468
2022 21 #5,868 108 #1,616
2021 17 #6,834 100 #1,661
2020 25 #5,088 113 #1,500
2019 30 #4,601 156 #1,220
2018 43 #3,589 139 #1,312
2017 42 #3,664 100 #1,609
2016 47 #3,397 156 #1,213
2015 61 #2,866 156 #1,186
2014 80 #2,316 190 #1,051
2013 87 #2,161 162 #1,120
2012 93 #2,069 185 #1,043
2011 101 #1,959 161 #1,128
2010 97 #2,048 139 #1,260
2009 109 #1,924 131 #1,326
2008 91 #2,196 124 #1,377
2007 74 #2,527 95 #1,630
2006 67 #2,683 69 #1,958
2005 66 #2,587 52 #2,284
2004 57 #2,824 54 #2,178
2003 32 #4,151 33 #2,965
2002 21 #5,567 24 #3,618
2001 12 #8,454 9 #7,210
2000 – – 6 #9,695
1995 – – – –
1990 – – – –
1985 – – – –
1980 – – – –
1975 – – – –
1970 – – – –
1965 – – – –
1960 – – – –
1955 – – – –
1950 – – – –
1945 – – – –
1940 – – – –
1935 – – – –
1930 – – – –
1925 – – – –
1920 – – – –
1915 – – – –
1910 – – – –
1905 – – – –
1900 – – – –
1895 – – – –
1890 – – – –
1885 – – – –
1880 – – – –

Frequently asked questions

Quick answers about Kaidyn, drawn from the same Social Security data as the charts above.

How old is the average Kaidyn?

The median living Kaidyn is about 12 years old. Half of all living Kaidyns are between 7 and 16 years old.

How many people named Kaidyn are alive today?

An estimated 4,000 people named Kaidyn are alive in the United States, based on 4,061 recorded births and Social Security life tables.

How popular is the name Kaidyn in 2025?

Kaidyn ranked #2,157 among boys' names in the United States in 2025, with 67 babies given the name, according to Social Security Administration data.

How many people are named Kaidyn?

4,061 babies have been named Kaidyn in the United States since 1998, based on Social Security card applications.

When was the name Kaidyn most popular?

Kaidyn peaked in 2012, when 278 newborns received the name.

Is Kaidyn a boy or girl name?

Kaidyn is used for both: about 33% of babies named Kaidyn have been girls and 67% boys.

Is the name Kaidyn rising or falling?

Kaidyn is declining, less popular now than a decade ago.

Will Kaidyn become more popular?

Kaidyn is trending downward. If the recent trend holds, we project roughly 51 boys named Kaidyn in 2030, which would rank outside the top 500. Forecasts assume the current trend continues and become less certain further out.

Names like Kaidyn

Names that sound and feel close to Kaidyn: shared sounds, similar era, similar popularity. Each links to its full history.

Compare Kaidyn with similar names → More names starting with K →