Baby Names US
Unisex name ★ peaked 2011

Caidyn

Gender Unisex · 35% girls Rank 2025 #4,420 Trend ↓ Falling 27%
Rank 2025
#4,420
among boys · ↓204 vs 2024
Babies in 2025
23
named Caidyn · -23% vs 2024
How common
1 in 74,264
boys born in 2025
Peak year
2011
95 babies
All-time total
1,270
#5,776 all-time among boys
First recorded
1999
in Social Security records

Caidyn popularity over time

1,270 babies have been named Caidyn since 1999, 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
0.010.020.030.0418801900192019401960198020002020BoysGirls
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 5 – 5 1 – –
2000s 234 236 470 47 +9300% #2,352
2010s 168 451 619 62 +32% #2,081
2020s (to 2025) 33 143 176 29 -53% #3,939

Where Caidyn 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 20 0.01 outside top 500
2029 20 0.01 outside top 500
2030 19 0.01 outside top 500

The story of Caidyn

Caidyn is rare for boys in the United States, ranked #4,420 in 2025 with 23 babies given the name. It is currently declining compared with a decade ago.

Since 1999, 1,270 American babies have been named Caidyn, about 65% boys and 35% girls, making it a genuinely unisex name. Its peak came in 2011, when 95 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 Caidyn stood among all boys' names in any year, or use the compare tool to plot it against other names.

How old are people named Caidyn?

The median living Caidyn is about 14 years old; half are between 8 and 17. An estimated 1,300 people named Caidyn are alive in the United States today.

median 14 020406080100

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

Caidyn 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 – – 23 #4,420
2024 5 #15,719 25 #4,216
2023 8 #11,370 27 #4,019
2022 5 #15,741 26 #4,109
2021 6 #13,797 16 #5,599
2020 9 #10,422 26 #3,939
2019 8 #11,564 37 #3,148
2018 11 #9,281 43 #2,805
2017 9 #10,855 34 #3,319
2016 12 #8,993 32 #3,452
2015 13 #8,551 38 #3,032
2014 10 #10,284 44 #2,715
2013 25 #5,348 45 #2,628
2012 22 #5,938 63 #2,137
2011 31 #4,592 64 #2,081
2010 27 #5,131 51 #2,433
2009 34 #4,385 55 #2,352
2008 39 #4,023 42 #2,834
2007 33 #4,490 31 #3,455
2006 21 #6,174 41 #2,788
2005 31 #4,393 20 #4,343
2004 35 #4,010 23 #3,880
2003 16 #6,940 14 #5,306
2002 12 #8,385 – –
2001 5 #15,768 5 #10,798
2000 8 #10,898 5 #10,587
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 Caidyn, drawn from the same Social Security data as the charts above.

How old is the average Caidyn?

The median living Caidyn is about 14 years old. Half of all living Caidyns are between 8 and 17 years old.

How many people named Caidyn are alive today?

An estimated 1,300 people named Caidyn are alive in the United States, based on 1,270 recorded births and Social Security life tables.

How popular is the name Caidyn in 2025?

Caidyn ranked #4,420 among boys' names in the United States in 2025, with 23 babies given the name, according to Social Security Administration data.

How many people are named Caidyn?

1,270 babies have been named Caidyn in the United States since 1999, based on Social Security card applications.

When was the name Caidyn most popular?

Caidyn peaked in 2011, when 95 newborns received the name.

Is Caidyn a boy or girl name?

Caidyn is used for both: about 35% of babies named Caidyn have been girls and 65% boys.

Is the name Caidyn rising or falling?

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

Will Caidyn become more popular?

Caidyn is trending downward. If the recent trend holds, we project roughly 19 boys named Caidyn in 2030, which would rank outside the top 500. Forecasts assume the current trend continues and become less certain further out.

Names like Caidyn

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

Compare Caidyn with similar names → More names starting with C →