Baby Names US
Unisex name ★ peaked 2021

Kaesyn

Gender Unisex · 15% girls Rank 2025 #3,611 Trend → Stable
Rank 2025
#3,611
among boys · ↑235 vs 2024
Babies in 2025
31
named Kaesyn · -11% vs 2024
How common
1 in 55,099
boys born in 2025
Peak year
2021
44 babies
All-time total
496
#8,745 all-time among boys
First recorded
2008
in Social Security records

Kaesyn popularity over time

496 babies have been named Kaesyn since 2008, 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
0.010.010.020.0318801900192019401960198020002020BoysGirls
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 – – – – – –
2000s – 19 19 2 – #6,621
2010s 50 214 264 26 +1289% #3,270
2020s (to 2025) 24 189 213 36 +34% #3,213

Where Kaesyn 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 31 0.02 outside top 500
2027 31 0.02 outside top 500
2028 30 0.02 outside top 500
2029 30 0.02 outside top 500
2030 30 0.02 outside top 500

The story of Kaesyn

Kaesyn is rare for boys in the United States, ranked #3,611 in 2025 with 31 babies given the name. It is currently rising compared with a decade ago.

Since 2008, 496 American babies have been named Kaesyn, about 85% boys and 15% girls, making it a genuinely unisex name. Its peak came in 2021, when 44 newborns received the name, the signature sound of the 2020s.

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 Kaesyn stood among all boys' names in any year, or use the compare tool to plot it against other names.

How old are people named Kaesyn?

The median living Kaesyn is about 6 years old; half are between 3 and 10. An estimated 500 people named Kaesyn are alive in the United States today.

median 6 020406080100

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

Kaesyn 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 – – 31 #3,611
2024 6 #14,292 29 #3,846
2023 6 #14,243 28 #3,939
2022 – – 35 #3,378
2021 7 #12,812 37 #3,213
2020 5 #16,246 29 #3,691
2019 5 #16,696 31 #3,605
2018 8 #11,928 35 #3,270
2017 7 #13,354 28 #3,840
2016 – – 19 #5,042
2015 6 #15,385 27 #3,935
2014 – – 17 #5,372
2013 9 #11,429 21 #4,533
2012 7 #14,194 11 #7,290
2011 8 #12,718 15 #5,814
2010 – – 10 #7,859
2009 – – 13 #6,621
2008 – – 6 #11,804
2007 – – – –
2006 – – – –
2005 – – – –
2004 – – – –
2003 – – – –
2002 – – – –
2001 – – – –
2000 – – – –
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 Kaesyn, drawn from the same Social Security data as the charts above.

How old is the average Kaesyn?

The median living Kaesyn is about 6 years old. Half of all living Kaesyns are between 3 and 10 years old.

How many people named Kaesyn are alive today?

An estimated 500 people named Kaesyn are alive in the United States, based on 496 recorded births and Social Security life tables.

How popular is the name Kaesyn in 2025?

Kaesyn ranked #3,611 among boys' names in the United States in 2025, with 31 babies given the name, according to Social Security Administration data.

How many people are named Kaesyn?

496 babies have been named Kaesyn in the United States since 2008, based on Social Security card applications.

When was the name Kaesyn most popular?

Kaesyn peaked in 2021, when 44 newborns received the name.

Is Kaesyn a boy or girl name?

Kaesyn is used for both: about 15% of babies named Kaesyn have been girls and 85% boys.

Is the name Kaesyn rising or falling?

Kaesyn is on the rise, noticeably more popular now than a decade ago.

Will Kaesyn become more popular?

Kaesyn looks stable. If the recent trend holds, we project roughly 30 boys named Kaesyn in 2030, ranking outside the top 500. Forecasts assume the current trend continues and become less certain further out.

Names like Kaesyn

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

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