Baby Names US
Unisex name ★ peaked 2018

Kacyn

Gender Unisex · 17% girls Rank 2025 #4,618 Trend ↓ Falling 13%
Rank 2025
#4,618
among boys · ↑1,709 vs 2024
Babies in 2025
22
named Kacyn
How common
1 in 77,640
boys born in 2025
Peak year
2018
31 babies
All-time total
316
#10,778 all-time among boys
First recorded
2008
in Social Security records

Kacyn popularity over time

316 babies have been named Kacyn 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
00.010.010.0218801900192019401960198020002020BoysGirls
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 12 8 20 2 – #9,420
2010s 37 138 175 18 +775% #4,148
2020s (to 2025) 5 116 121 20 +15% #4,486

Where Kacyn 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 22 0.01 outside top 500
2027 21 0.01 outside top 500
2028 21 0.01 outside top 500
2029 21 0.01 outside top 500
2030 20 0.01 outside top 500

The story of Kacyn

Kacyn is rare for boys in the United States, ranked #4,618 in 2025 with 22 babies given the name. It is currently rising compared with a decade ago.

Since 2008, 316 American babies have been named Kacyn, about 83% boys and 17% girls, making it a genuinely unisex name. Its peak came in 2018, when 31 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 Kacyn stood among all boys' names in any year, or use the compare tool to plot it against other names.

How old are people named Kacyn?

The median living Kacyn is about 7 years old; half are between 3 and 12. An estimated 300 people named Kacyn are alive in the United States today.

median 7 020406080100

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

Kacyn 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 – – 22 #4,618
2024 – – 14 #6,327
2023 5 #16,287 22 #4,666
2022 – – 21 #4,781
2021 – – 15 #5,894
2020 – – 22 #4,486
2019 – – 22 #4,554
2018 6 #14,655 25 #4,148
2017 5 #17,066 14 #6,182
2016 – – 13 #6,521
2015 – – 8 #9,147
2014 6 #15,535 14 #6,143
2013 8 #12,552 10 #7,817
2012 – – 9 #8,502
2011 5 #18,100 12 #6,801
2010 7 #14,184 11 #7,321
2009 5 #18,659 8 #9,420
2008 7 #14,550 – –
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 Kacyn, drawn from the same Social Security data as the charts above.

How old is the average Kacyn?

The median living Kacyn is about 7 years old. Half of all living Kacyns are between 3 and 12 years old.

How many people named Kacyn are alive today?

An estimated 300 people named Kacyn are alive in the United States, based on 316 recorded births and Social Security life tables.

How popular is the name Kacyn in 2025?

Kacyn ranked #4,618 among boys' names in the United States in 2025, with 22 babies given the name, according to Social Security Administration data.

How many people are named Kacyn?

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

When was the name Kacyn most popular?

Kacyn peaked in 2018, when 31 newborns received the name.

Is Kacyn a boy or girl name?

Kacyn is used for both: about 17% of babies named Kacyn have been girls and 83% boys.

Is the name Kacyn rising or falling?

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

Will Kacyn become more popular?

Kacyn is trending downward. If the recent trend holds, we project roughly 20 boys named Kacyn in 2030, which would rank outside the top 500. Forecasts assume the current trend continues and become less certain further out.

Names like Kacyn

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

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