Aileen
Aileen was given to 340 girls in 2025, #799 among girls’ names; 37,642 Americans have been recorded with it since 1880 (Social Security Administration, published May 2026).
An estimated 25,500 Americans named Aileen and born in the U.S. are alive in 2026 (68% of everyone recorded); the median is 25 years old and half are between 15 and 48.
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Aileen by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
What does Aileen mean?
Wiktionary, English section
Aileen is “a female given name from Irish, variant of Eileen.”
Meaning: Wiktionary, English section, as of Sep 25, 2026 (CC BY‑SA 4.0).
How popular is Aileen?
#799 among girls’ names, 2025
Aileen fell from #514 in 2015 to #799 in 2025 among girls’ names; its share of girls born fell from 0.34 to 0.21 per 1,000.
685 babies in 2009, the peak
Aileen peaked in 2009, when 685 girls were given it, #454 among girls’ names. The 340 births of 2025 are 50% of that peak.
| Year | Births | Rank | Per 1,000 girls |
|---|---|---|---|
| 2025 | 340 | #799 | 0.21 |
| 2024 | 391 | #720 | 0.24 |
| 2023 | 352 | #799 | 0.22 |
| 2022 | 407 | #720 | 0.25 |
| 2021 | 429 | #678 | 0.26 |
| 2020 | 404 | #696 | 0.25 |
| 2019 | 452 | #643 | 0.27 |
| 2018 | 437 | #671 | 0.26 |
| 2017 | 456 | #648 | 0.26 |
| 2016 | 500 | #602 | 0.28 |
Every recorded year (143)
| Year | Births | Rank | Per 1,000 girls |
|---|---|---|---|
| 2015 | 609 | #514 | 0.34 |
| 2014 | 541 | #567 | 0.30 |
| 2013 | 479 | #593 | 0.27 |
| 2012 | 603 | #506 | 0.34 |
| 2011 | 633 | #467 | 0.36 |
| 2010 | 645 | #468 | 0.36 |
| 2009 | 685 | #454 | 0.37 |
| 2008 | 650 | #486 | 0.34 |
| 2007 | 645 | #501 | 0.34 |
| 2006 | 558 | #537 | 0.29 |
| 2005 | 633 | #483 | 0.34 |
| 2004 | 568 | #510 | 0.31 |
| 2003 | 526 | #536 | 0.29 |
| 2002 | 505 | #546 | 0.28 |
| 2001 | 550 | #501 | 0.31 |
| 2000 | 501 | #526 | 0.28 |
| 1999 | 492 | #518 | 0.28 |
| 1998 | 525 | #486 | 0.30 |
| 1997 | 441 | #539 | 0.25 |
| 1996 | 303 | #703 | 0.17 |
| 1995 | 235 | #831 | 0.13 |
| 1994 | 247 | #811 | 0.14 |
| 1993 | 277 | #748 | 0.15 |
| 1992 | 254 | #792 | 0.14 |
| 1991 | 254 | #802 | 0.14 |
| 1990 | 230 | #854 | 0.12 |
| 1989 | 238 | #798 | 0.13 |
| 1988 | 256 | #731 | 0.14 |
| 1987 | 217 | #805 | 0.12 |
| 1986 | 252 | #710 | 0.15 |
| 1985 | 237 | #726 | 0.14 |
| 1984 | 265 | #660 | 0.16 |
| 1983 | 254 | #674 | 0.15 |
| 1982 | 214 | #768 | 0.13 |
| 1981 | 211 | #773 | 0.13 |
| 1980 | 212 | #778 | 0.13 |
| 1979 | 149 | #966 | 0.09 |
| 1978 | 159 | #901 | 0.10 |
| 1977 | 152 | #921 | 0.10 |
| 1976 | 148 | #891 | 0.10 |
| 1975 | 169 | #809 | 0.12 |
| 1974 | 190 | #746 | 0.13 |
| 1973 | 189 | #741 | 0.13 |
| 1972 | 195 | #726 | 0.13 |
| 1971 | 192 | #764 | 0.12 |
| 1970 | 238 | #669 | 0.14 |
| 1969 | 242 | #635 | 0.14 |
| 1968 | 210 | #666 | 0.13 |
| 1967 | 210 | #661 | 0.13 |
| 1966 | 211 | #668 | 0.12 |
| 1965 | 254 | #610 | 0.14 |
| 1964 | 248 | #648 | 0.13 |
| 1963 | 217 | #685 | 0.11 |
| 1962 | 245 | #646 | 0.12 |
| 1961 | 242 | #660 | 0.12 |
| 1960 | 229 | #670 | 0.11 |
| 1959 | 215 | #684 | 0.11 |
| 1958 | 203 | #694 | 0.10 |
| 1957 | 190 | #724 | 0.09 |
| 1956 | 179 | #720 | 0.09 |
| 1955 | 208 | #641 | 0.11 |
| 1954 | 188 | #680 | 0.10 |
| 1953 | 218 | #598 | 0.12 |
| 1952 | 184 | #656 | 0.10 |
| 1951 | 212 | #590 | 0.12 |
| 1950 | 160 | #667 | 0.09 |
| 1949 | 150 | #682 | 0.09 |
| 1948 | 180 | #615 | 0.11 |
| 1947 | 199 | #603 | 0.11 |
| 1946 | 185 | #588 | 0.12 |
| 1945 | 150 | #596 | 0.11 |
| 1944 | 166 | #565 | 0.13 |
| 1943 | 209 | #515 | 0.15 |
| 1942 | 136 | #642 | 0.10 |
| 1941 | 118 | #651 | 0.10 |
| 1940 | 136 | #596 | 0.12 |
| 1939 | 131 | #583 | 0.12 |
| 1938 | 144 | #570 | 0.13 |
| 1937 | 157 | #526 | 0.15 |
| 1936 | 190 | #466 | 0.18 |
| 1935 | 174 | #478 | 0.17 |
| 1934 | 212 | #447 | 0.20 |
| 1933 | 228 | #426 | 0.23 |
| 1932 | 292 | #383 | 0.27 |
| 1931 | 286 | #385 | 0.27 |
| 1930 | 343 | #361 | 0.30 |
| 1929 | 356 | #345 | 0.32 |
| 1928 | 487 | #302 | 0.42 |
| 1927 | 463 | #309 | 0.39 |
| 1926 | 534 | #289 | 0.45 |
| 1925 | 503 | #298 | 0.41 |
| 1924 | 521 | #291 | 0.42 |
| 1923 | 420 | #314 | 0.35 |
| 1922 | 453 | #303 | 0.38 |
| 1921 | 454 | #305 | 0.37 |
| 1920 | 457 | #305 | 0.38 |
| 1919 | 371 | #330 | 0.33 |
| 1918 | 357 | #346 | 0.31 |
| 1917 | 365 | #321 | 0.34 |
| 1916 | 354 | #324 | 0.34 |
| 1915 | 390 | #293 | 0.40 |
| 1914 | 298 | #302 | 0.39 |
| 1913 | 231 | #314 | 0.37 |
| 1912 | 192 | #326 | 0.34 |
| 1911 | 150 | #323 | 0.36 |
| 1910 | 123 | #357 | 0.31 |
| 1909 | 103 | #357 | 0.30 |
| 1908 | 99 | #361 | 0.30 |
| 1907 | 72 | #418 | 0.23 |
| 1906 | 99 | #336 | 0.34 |
| 1905 | 67 | #413 | 0.23 |
| 1904 | 89 | #346 | 0.32 |
| 1903 | 63 | #400 | 0.24 |
| 1902 | 86 | #341 | 0.33 |
| 1901 | 73 | #356 | 0.30 |
| 1900 | 67 | #407 | 0.22 |
| 1899 | 49 | #416 | 0.21 |
| 1898 | 48 | #441 | 0.19 |
| 1897 | 44 | #440 | 0.19 |
| 1896 | 37 | #478 | 0.16 |
| 1895 | 40 | #455 | 0.17 |
| 1894 | 40 | #442 | 0.18 |
| 1893 | 29 | #512 | 0.14 |
| 1892 | 18 | #685 | 0.08 |
| 1891 | 14 | #727 | 0.08 |
| 1890 | 13 | #759 | 0.07 |
| 1889 | 14 | #687 | 0.08 |
| 1888 | 10 | #837 | 0.06 |
| 1887 | 8 | #861 | 0.05 |
| 1886 | 7 | #898 | 0.05 |
| 1884 | 10 | #686 | 0.08 |
| 1883 | 8 | #692 | 0.07 |
| 1880 | 6 | #739 | 0.07 |
Ranks and shares: girls’ names in each year’s SSA file; share of all girls SSA recorded that year.
Is Aileen a boy’s or a girl’s name?
Aileen has been given almost only to girls: 5 boys in 143 years of records.
Girls and boys named Aileen: the SSA national file counts each sex separately.
How many people are named Aileen, and how old are they?
25,500 alive in 2026, estimated
That is 68% of the 37,642 Americans ever recorded as Aileen. The median Aileen alive today is 25 years old; half are between 15 and 48.
The 2020 Census counted 25,227 people named Aileen (25,194 women and girls, 33 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 24,677 born in the U.S. The Census count is 2% above that prediction.
Alive today, by age
Alive today, by generation
| Generation | Born | Alive |
|---|---|---|
| Silent Generation | 1928-1945 | 924 |
| Baby Boomers | 1946-1964 | 3,010 |
| Generation X | 1965-1980 | 2,890 |
| Millennials | 1981-1996 | 3,840 |
| Generation Z | 1997-2012 | 9,070 |
| Generation Alpha | 2013-2025 | 5,760 |
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 Aileen born?
The states with the most babies named Aileen are California, Texas and New York, with 65% of its births recorded by state in 2025.
| State | Births 2025 | Rank, girls | vs. national |
|---|---|---|---|
| California | 86 | #381 | 2.3× |
| Texas | 83 | #402 | 1.2× |
| New York | 18 | #860 | 1.4× |
| Illinois | 14 | #668 | 1.0× |
| Florida | 10 | #1,329 | 0.8× |
| Arizona | 10 | #632 | 1.2× |
| North Carolina | 8 | #1,061 | 0.6× |
| Georgia | 8 | #1,081 | 0.3× |
| New Jersey | 7 | #943 | 1.0× |
| Virginia | 7 | #939 | 0.5× |
Where Aileen is more common than its national share predicts
Relative to its national share, Aileen is most over-represented in Hawaii: since 1910 it was given 4.1 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 Aileen 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 57,362 babies since 1880, Aileen is the most given (66% of them). In 2025 it was given to 340 of their 1,050 babies (32%), again the 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 Aileen
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 Aileen and names like it
- Compare Aileen and AyleenBirths, ranks, peak and the living estimate side by side.
- The most given names of the 2000sAileen peaked in 2009.
- California’s most given namesThe state where SSA recorded the most babies named Aileen since 1910.
- The top names of 2009The year the most babies were named Aileen.
- The names of Generation ZMost people named Aileen alive today were born 1997-2012.
- Names starting with AMost given first.