Kiley is an established girls' name that peaked in 2008 and has since faded.
Kiley is predominantly a girl name. In 2025 it ranked #2,798 for girl births in the United States (and #4,929 across all names), given to 61 babies. Kiley was first reported in SSA data in 1958 and peaked in 2008 (1,090 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 61 | 61 | #2,798 | — |
| 2024 | 57 | 57 | #2,909 | — |
| 2023 | 61 | 61 | #2,803 | — |
| 2022 | 68 | 68 | #2,594 | — |
| 2021 | 79 | 79 | #2,322 | — |
| 2020 | 108 | 108 | #1,827 | — |
| 2019 | 114 | 114 | #1,794 | — |
| 2018 | 145 | 145 | #1,508 | — |
| 2017 | 186 | 186 | #1,270 | — |
| 2016 | 221 | 221 | #1,167 | #13,320 |
| 2015 | 307 | 307 | #900 | — |
| 2014 | 433 | 433 | #661 | — |
| 2013 | 560 | 560 | #533 | — |
| 2012 | 595 | 595 | #513 | — |
| 2011 | 743 | 743 | #423 | #11,637 |
| 2010 | 840 | 840 | #379 | — |
| 2009 | 903 | 903 | #359 | #9,493 |
| 2008 | 1,098 | 1,098 | #307 | #9,481 |
| 2007 | 887 | 887 | #367 | — |
| 2006 | 742 | 742 | #428 | — |
| 2005 | 820 | 820 | #385 | #12,495 |
| 2004 | 850 | 850 | #373 | #7,304 |
| 2003 | 863 | 863 | #361 | #5,739 |
| 2002 | 738 | 738 | #400 | #8,978 |
| 2001 | 658 | 658 | #429 | #5,032 |
| 2000 | 634 | 634 | #451 | #9,774 |
| 1999 | 609 | 609 | #452 | #3,921 |
| 1998 | 484 | 484 | #538 | #3,938 |
| 1997 | 431 | — | #562 | #4,582 |
| 1996 | 419 | — | #575 | #3,765 |
| 1995 | 381 | — | #615 | #3,259 |
| 1994 | 322 | — | #686 | #4,201 |
| 1993 | 339 | — | #686 | #3,205 |
| 1992 | 332 | — | #700 | #2,885 |
| 1991 | 316 | — | #710 | #3,403 |
| 1990 | 306 | — | #753 | #2,350 |
| 1989 | 325 | — | #691 | #2,224 |
| 1988 | 265 | — | #764 | #2,811 |
| 1987 | 229 | — | #824 | #3,024 |
| 1986 | 190 | — | #969 | #2,135 |
| 1985 | 199 | — | #932 | #1,948 |
| 1984 | 195 | — | #870 | #2,493 |
| 1983 | 200 | — | #903 | #1,735 |
| 1982 | 178 | — | #945 | #2,475 |
| 1981 | 151 | — | #1,096 | #2,168 |
| 1980 | 257 | — | #751 | #1,643 |
| 1979 | 313 | — | #633 | #1,554 |
| 1978 | 321 | — | #620 | #1,314 |
| 1977 | 63 | — | #2,638 | #1,724 |
| 1976 | 85 | — | #2,036 | #1,385 |
| 1975 | 91 | — | #2,539 | #1,091 |
| 1974 | 93 | — | #2,193 | #1,105 |
| 1973 | 79 | — | #2,784 | #1,115 |
| 1972 | 99 | — | #2,552 | #964 |
| 1971 | 103 | — | #3,004 | #912 |
| 1970 | 71 | — | #3,787 | #1,108 |
| 1969 | 18 | — | #5,697 | #2,969 |
| 1968 | 19 | — | #6,607 | #2,394 |
| 1964 | 8 | — | #5,215 | — |
| 1963 | 5 | — | #7,101 | — |
| 1958 | 5 | — | #6,538 | — |