Kiley
Kiley was given to 61 girls in 2025, #2,798 among girls’ names; 20,272 Americans have been recorded with it since 1958 (Social Security Administration, published May 2026).
An estimated 19,900 Americans named Kiley and born in the U.S. are alive in 2026 (98% of everyone recorded); the median is 23 years old and half are between 17 and 31.
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Kiley by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
What does Kiley mean?
Wiktionary, English section
Kiley is “a unisex given name transferred from the surname, of modern usage; compare Kylie.”
Meaning: Wiktionary, English section, as of Sep 25, 2026 (CC BY‑SA 4.0).
How popular is Kiley?
#2,798 among girls’ names, 2025
Kiley fell from #900 in 2015 to #2,798 in 2025 among girls’ names; its share of girls born fell from 0.17 to 0.04 per 1,000.
1,098 babies in 2008, the peak
Kiley peaked in 2008, when 1,098 babies were given it (1,090 girls, #307 among girls’ names). The 61 births of 2025 are 6% of that peak.
Births by sex.
| Year | Births | Rank | Per 1,000 girls |
|---|---|---|---|
| 2025 | 61 | #2,798 | 0.04 |
| 2024 | 57 | #2,909 | 0.04 |
| 2023 | 61 | #2,803 | 0.04 |
| 2022 | 68 | #2,594 | 0.04 |
| 2021 | 79 | #2,322 | 0.05 |
| 2020 | 108 | #1,827 | 0.07 |
| 2019 | 114 | #1,794 | 0.07 |
| 2018 | 145 | #1,508 | 0.09 |
| 2017 | 186 | #1,270 | 0.11 |
| 2016 | 216 | #1,167 | 0.12 |
Every recorded year (61)
| Year | Births | Rank | Per 1,000 girls |
|---|---|---|---|
| 2015 | 307 | #900 | 0.17 |
| 2014 | 433 | #661 | 0.24 |
| 2013 | 560 | #533 | 0.32 |
| 2012 | 595 | #513 | 0.34 |
| 2011 | 737 | #423 | 0.42 |
| 2010 | 840 | #379 | 0.47 |
| 2009 | 895 | #359 | 0.49 |
| 2008 | 1,090 | #307 | 0.58 |
| 2007 | 887 | #367 | 0.46 |
| 2006 | 742 | #428 | 0.39 |
| 2005 | 815 | #385 | 0.44 |
| 2004 | 840 | #373 | 0.46 |
| 2003 | 850 | #361 | 0.47 |
| 2002 | 731 | #400 | 0.41 |
| 2001 | 643 | #429 | 0.36 |
| 2000 | 628 | #451 | 0.35 |
| 1999 | 590 | #452 | 0.33 |
| 1998 | 466 | #538 | 0.26 |
| 1997 | 417 | #562 | 0.24 |
| 1996 | 401 | #575 | 0.23 |
| 1995 | 360 | #615 | 0.20 |
| 1994 | 307 | #686 | 0.17 |
| 1993 | 318 | #686 | 0.18 |
| 1992 | 308 | #700 | 0.17 |
| 1991 | 298 | #710 | 0.16 |
| 1990 | 276 | #752 | 0.15 |
| 1989 | 294 | #690 | 0.16 |
| 1988 | 245 | #764 | 0.14 |
| 1987 | 212 | #824 | 0.12 |
| 1986 | 163 | #969 | 0.10 |
| 1985 | 169 | #932 | 0.10 |
| 1984 | 175 | #870 | 0.10 |
| 1983 | 167 | #903 | 0.10 |
| 1982 | 158 | #945 | 0.09 |
| 1981 | 127 | #1,096 | 0.08 |
| 1980 | 221 | #751 | 0.13 |
| 1979 | 275 | #633 | 0.17 |
| 1978 | 273 | #620 | 0.18 |
| 1977 | 32 | #2,638 | 0.02 |
| 1976 | 43 | #2,036 | 0.03 |
| 1975 | 31 | #2,539 | 0.02 |
| 1974 | 37 | #2,193 | 0.03 |
| 1973 | 25 | #2,784 | 0.02 |
| 1972 | 28 | #2,552 | 0.02 |
| 1971 | 23 | #3,004 | 0.01 |
| 1970 | 16 | #3,786 | 0.01 |
| 1969 | 8 | #5,695 | under 0.01 |
| 1968 | 6 | #6,605 | under 0.01 |
| 1964 | 8 | #5,214 | under 0.01 |
| 1963 | 5 | #7,100 | under 0.01 |
| 1958 | 5 | #6,537 | under 0.01 |
Ranks and shares: girls’ names in each year’s SSA file; share of all girls SSA recorded that year.
Is Kiley a boy’s or a girl’s name?
Of the 20,272 Americans recorded as Kiley, 95% are girls and 5% boys. Girls have outnumbered boys among babies named Kiley every year since 1978. In 2025 it went to 61 girls; SSA lists no boys with it that year (fewer than 5, or none).
Years with fewer than 20 babies given the name are left blank.
Girls and boys named Kiley: the SSA national file counts each sex separately.
How many people are named Kiley, and how old are they?
19,900 alive in 2026, estimated
That is 98% of the 20,272 Americans ever recorded as Kiley. The median Kiley alive today is 23 years old; half are between 17 and 31.
The 2020 Census counted 18,180 people named Kiley (17,257 women and girls, 923 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 19,579 born in the U.S. The Census count is 7% below that prediction.
Alive today, by age
Alive today, by generation
| Generation | Born | Alive |
|---|---|---|
| Baby Boomers | 1946-1964 | 15 |
| Generation X | 1965-1980 | 1,500 |
| Millennials | 1981-1996 | 4,230 |
| Generation Z | 1997-2012 | 11,800 |
| Generation Alpha | 2013-2025 | 2,380 |
An estimate, not a count. SSA’s files count people born in the United States who received a Social Security number, so anyone born abroad is not in them; before 1937 most people got a number as adults, and their survival is counted from that age.
Living estimate: SSA births carried forward with the survival rates in SSA’s cohort life tables (2024 Trustees Report) for each birth year and sex. How the estimate is made. Count: Census Bureau, first names in the 2020 Census (released April 14, 2026; names reported 100 or more times, with the Bureau’s disclosure-avoidance adjustment).
Where are babies named Kiley born?
| State | Births 2025 | Rank, girls | vs. national |
|---|---|---|---|
| Florida | 6 | #2,034 | 0.9× |
Where Kiley is more common than its national share predicts
Relative to its national share, Kiley is most over-represented in Nebraska: since 1958 it was given 1.9 times as often there as its national share each year would predict.
States: SSA state file, 1910-2025, published May 8, 2026; births count girls and boys together, and the rank is among girls’ names in the state in 2025. The file leaves out any state and year with fewer than 5 babies of the name, so small states are undercounted; each ratio compares the state’s births of Kiley with the births its national share predicts year by year, for states with at least 100 births of the name.
Names spelled alike
Of these 8 names spelled alike, given to 79,212 babies since 1880, Kiley is the second most given (26% of them). In 2025 it was given to 61 of their 403 babies (15%), again the second most given.
Spelled alike: names in the SSA national file with the same pattern of letters and sounds and at most two letters apart, and Wiktionary’s listed forms; births since 1880 and in 2025, and each name’s peak year, from the SSA national file, published May 8, 2026. Some are separate names, not spellings of one.
Names that rose and fell in the same decades as Kiley
Names whose births rose and fell across the same decades, measured on each decade’s share of births.
Similar histories: each decade’s share of births, from the SSA national file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
More about Kiley and names like it
- Compare Kiley and KyleeBirths, ranks, peak and the living estimate side by side.
- The most given names of the 2000sKiley peaked in 2008.
- California’s most given namesThe state where SSA recorded the most babies named Kiley since 1910.
- From surnamesWiktionary’s origin for Kiley: every such name, by how often it is given.
- The top names of 2008The year the most babies were named Kiley.
- The names of Generation ZMost people named Kiley alive today were born 1997-2012.
- Names starting with KMost given first.