Baby Names US
Unisex name ★ peaked 2008

Kiley

Gender Unisex · 95% girls Rank 2025 #2,798 Trend ↓ Falling 50%

A unisex given name transferred from the surname, of modern usage; compare Kylie.

Rank 2025
#2,798
among girls · ↑111 vs 2024
Babies in 2025
61
named Kiley · +7% vs 2024
How common
1 in 26,349
girls born in 2025
Peak year
2008
1,098 babies
All-time total
20,272
#1,099 all-time among girls
First recorded
1958
in Social Security records

Kiley popularity over time

20,272 babies have been named Kiley since 1958, 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
0.190.380.560.7518801900192019401960198020002020GirlsBoys
GirlsBoys

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 5 – 5 1 – #6,538
1960s 27 23 50 5 +900% #5,215
1970s 783 535 1,318 132 +2536% #620
1980s 1,931 258 2,189 219 +66% #691
1990s 3,741 198 3,939 394 +80% #452
2000s 8,121 72 8,193 819 +108% #307
2010s 4,133 11 4,144 414 -49% #379
2020s (to 2025) 434 – 434 72 -83% #1,827

Where Kiley 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 55 0.03 outside top 500
2027 50 0.03 outside top 500
2028 46 0.03 outside top 500
2029 43 0.03 outside top 500
2030 41 0.03 outside top 500

The story of Kiley

Kiley is rare for girls in the United States, ranked #2,798 in 2025 with 61 babies given the name. It is currently declining compared with a decade ago.

Since 1958, 20,272 American babies have been named Kiley, about 95% girls and 5% boys, making it a genuinely unisex name. Its peak came in 2008, when 1,098 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 Kiley stood among all girls' names in any year, or use the compare tool to plot it against other names.

How old are people named Kiley?

The median living Kiley is about 22 years old; half are between 16 and 31. An estimated 20 thousand people named Kiley 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.

Kiley 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 61 #2,798 – –
2024 57 #2,909 – –
2023 61 #2,803 – –
2022 68 #2,594 – –
2021 79 #2,322 – –
2020 108 #1,827 – –
2019 114 #1,794 – –
2018 145 #1,508 – –
2017 186 #1,270 – –
2016 216 #1,167 5 #13,320
2015 307 #900 – –
2014 433 #661 – –
2013 560 #533 – –
2012 595 #513 – –
2011 737 #423 6 #11,637
2010 840 #379 – –
2009 895 #359 8 #9,493
2008 1,090 #307 8 #9,481
2007 887 #367 – –
2006 742 #428 – –
2005 815 #385 5 #12,495
2004 840 #373 10 #7,304
2003 850 #361 13 #5,739
2002 731 #400 7 #8,978
2001 643 #429 15 #5,032
2000 628 #451 6 #9,774
1995 360 #615 21 #3,259
1990 276 #753 30 #2,350
1985 169 #932 30 #1,948
1980 221 #751 36 #1,643
1975 31 #2,539 60 #1,091
1970 16 #3,787 55 #1,108
1965 – – – –
1960 – – – –
1955 – – – –
1950 – – – –
1945 – – – –
1940 – – – –
1935 – – – –
1930 – – – –
1925 – – – –
1920 – – – –
1915 – – – –
1910 – – – –
1905 – – – –
1900 – – – –
1895 – – – –
1890 – – – –
1885 – – – –
1880 – – – –

Frequently asked questions

Quick answers about Kiley, drawn from the same Social Security data as the charts above.

How old is the average Kiley?

The median living Kiley is about 22 years old. Half of all living Kileys are between 16 and 31 years old.

How many people named Kiley are alive today?

An estimated 20 thousand people named Kiley are alive in the United States, based on 20,272 recorded births and Social Security life tables.

What does the name Kiley mean?

A unisex given name transferred from the surname, of modern usage; compare Kylie.

How popular is the name Kiley in 2025?

Kiley ranked #2,798 among girls' names in the United States in 2025, with 61 babies given the name, according to Social Security Administration data.

How many people are named Kiley?

20,272 babies have been named Kiley in the United States since 1958, based on Social Security card applications.

When was the name Kiley most popular?

Kiley peaked in 2008, when 1,098 newborns received the name.

Is Kiley a boy or girl name?

Kiley is used for both: about 95% of babies named Kiley have been girls and 5% boys.

Is the name Kiley rising or falling?

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

Will Kiley become more popular?

Kiley is trending downward. If the recent trend holds, we project roughly 41 girls named Kiley in 2030, which would rank outside the top 500. Forecasts assume the current trend continues and become less certain further out.

Names like Kiley

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

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