Baby Names US
Unisex name ★ peaked 2009

Kaydin

Gender Unisex · 29% girls Rank 2025 #4,472 Trend ↓ Falling 29%
Rank 2025
#4,472
among boys · ↓93 vs 2024
Babies in 2025
23
named Kaydin · -4% vs 2024
How common
1 in 74,264
boys born in 2025
Peak year
2009
152 babies
All-time total
1,852
#4,336 all-time among boys
First recorded
1999
in Social Security records

Kaydin popularity over time

1,852 babies have been named Kaydin 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
0.020.040.060.0818801900192019401960198020002020BoysGirls
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 10 1 – #10,789
2000s 322 483 805 81 +7950% #1,647
2010s 207 675 882 88 +10% #1,570
2020s (to 2025) 11 144 155 26 -71% #3,544

Where Kaydin 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 19 0.01 outside top 500
2030 19 0.01 outside top 500

The story of Kaydin

Kaydin is rare for boys in the United States, ranked #4,472 in 2025 with 23 babies given the name. It is currently declining compared with a decade ago.

Since 1999, 1,852 American babies have been named Kaydin, about 71% boys and 29% girls, making it a genuinely unisex name. Its peak came in 2009, when 152 newborns received the name, the signature sound of the 2000s.

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

How old are people named Kaydin?

The median living Kaydin is about 15 years old; half are between 11 and 18. An estimated 1,800 people named Kaydin are alive in the United States today.

median 15 020406080100

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

Kaydin 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 #4,472
2024 – – 24 #4,379
2023 5 #16,370 23 #4,536
2022 – – 23 #4,507
2021 – – 32 #3,544
2020 6 #14,273 19 #4,946
2019 – – 37 #3,167
2018 7 #13,131 44 #2,771
2017 12 #9,057 44 #2,776
2016 17 #7,067 51 #2,496
2015 17 #7,123 65 #2,141
2014 25 #5,382 70 #2,031
2013 36 #4,121 87 #1,701
2012 33 #4,434 90 #1,692
2011 25 #5,458 86 #1,725
2010 35 #4,248 101 #1,570
2009 56 #3,068 96 #1,647
2008 65 #2,788 77 #1,887
2007 59 #3,013 77 #1,868
2006 30 #4,738 67 #1,999
2005 26 #5,032 52 #2,285
2004 39 #3,715 44 #2,516
2003 26 #4,873 33 #2,966
2002 12 #8,547 16 #4,812
2001 9 #10,549 15 #5,022
2000 – – 6 #9,723
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 Kaydin, drawn from the same Social Security data as the charts above.

How old is the average Kaydin?

The median living Kaydin is about 15 years old. Half of all living Kaydins are between 11 and 18 years old.

How many people named Kaydin are alive today?

An estimated 1,800 people named Kaydin are alive in the United States, based on 1,852 recorded births and Social Security life tables.

How popular is the name Kaydin in 2025?

Kaydin ranked #4,472 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 Kaydin?

1,852 babies have been named Kaydin in the United States since 1999, based on Social Security card applications.

When was the name Kaydin most popular?

Kaydin peaked in 2009, when 152 newborns received the name.

Is Kaydin a boy or girl name?

Kaydin is used for both: about 29% of babies named Kaydin have been girls and 71% boys.

Is the name Kaydin rising or falling?

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

Will Kaydin become more popular?

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

Names like Kaydin

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

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