Baby Names US
girls' name ★ peaked 1999

Kayley

Gender Girl Rank 2025 #3,429 Trend ↓ Falling 36%

A female given name transferred from the surname, variant of Kaylee.

Rank 2025
#3,429
among girls · ↓173 vs 2024
Babies in 2025
45
named Kayley · -8% vs 2024
How common
1 in 35,717
girls born in 2025
Peak year
1999
461 babies
All-time total
8,586
#1,846 all-time among girls
First recorded
1977
in Social Security records

Kayley popularity over time

8,586 babies have been named Kayley since 1977, 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
0.080.150.230.318801900192019401960198020002020Peak 1999Girls

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 Per year Change Best rank
1880s – – – –
1890s – – – –
1900s – – – –
1910s – – – –
1920s – – – –
1930s – – – –
1940s – – – –
1950s – – – –
1960s – – – –
1970s 5 1 – #10,340
1980s 476 48 +9420% #1,127
1990s 2,559 256 +438% #548
2000s 3,679 368 +44% #638
2010s 1,503 150 -59% #1,080
2020s (to 2025) 364 61 -60% #2,248

Where Kayley is heading

A five-year projection from the recent trend in births per 1,000 girls (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 girls Implied rank
2026 42 0.03 outside top 500
2027 39 0.02 outside top 500
2028 37 0.02 outside top 500
2029 36 0.02 outside top 500
2030 34 0.02 outside top 500

The story of Kayley

Kayley is rare for girls in the United States, ranked #3,429 in 2025 with 45 babies given the name. It is currently declining compared with a decade ago.

Since 1977, 8,586 American babies have been named Kayley. Its peak came in 1999, when 461 newborns received the name, the signature sound of the 1990s.

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

How old are people named Kayley?

The median living Kayley is about 22 years old; half are between 16 and 27. An estimated 8,500 people named Kayley are alive in the United States today.

median 22 020406080100

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

Kayley year by year

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

Year Girls Girls rank
2025 45 #3,429
2024 49 #3,256
2023 56 #2,998
2022 71 #2,517
2021 63 #2,738
2020 80 #2,248
2019 65 #2,667
2018 97 #2,020
2017 100 #1,984
2016 125 #1,710
2015 132 #1,630
2014 143 #1,530
2013 181 #1,298
2012 218 #1,129
2011 211 #1,161
2010 231 #1,080
2009 288 #929
2008 349 #821
2007 338 #841
2006 383 #733
2005 438 #638
2004 411 #669
2003 377 #693
2002 332 #734
2001 375 #669
2000 388 #645
1995 206 #916
1990 142 #1,202
1985 39 #2,515
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 Kayley, drawn from the same Social Security data as the charts above.

How old is the average Kayley?

The median living Kayley is about 22 years old. Half of all living Kayleys are between 16 and 27 years old.

How many people named Kayley are alive today?

An estimated 8,500 people named Kayley are alive in the United States, based on 8,586 recorded births and Social Security life tables.

What does the name Kayley mean?

A female given name transferred from the surname, variant of Kaylee.

How popular is the name Kayley in 2025?

Kayley ranked #3,429 among girls' names in the United States in 2025, with 45 babies given the name, according to Social Security Administration data.

How many people are named Kayley?

8,586 babies have been named Kayley in the United States since 1977, based on Social Security card applications.

When was the name Kayley most popular?

Kayley peaked in 1999, when 461 newborns received the name.

Is Kayley a boy or girl name?

Kayley is overwhelmingly a girl's name: 100% of babies with the name.

Is the name Kayley rising or falling?

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

Will Kayley become more popular?

Kayley is trending downward. If the recent trend holds, we project roughly 34 girls named Kayley in 2030, which would rank outside the top 500. Forecasts assume the current trend continues and become less certain further out.

Names like Kayley

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

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