Aileen
Girl name · #799 in 2025 · Rare
Aileen is currently the #799 girl name in the United States — 340 babies received it in 2025. A decade ago it stood at #514, so the name has been falling over the past ten years. Roughly one in every 5,294 girls born in 2025 was named Aileen.
The 145-year story
Aileen first appears in the Social Security records in 1880, when 6 girls received the name. Its peak came in 2009, when 685 girls were named Aileen — good for #454 that year. Today's parents encounter it on its way down the popularity curve, which for many parents is exactly the appeal. Following the curve matters more than today's snapshot: a name's position on its rise-peak-decline arc is the best predictor of how common it will feel in a kindergarten class five years from now.
Babies named Aileen per year. Source: SSA.
Unlock the 5-year forecast and compare Aileen against up to 5 other names.
Uniqueness: will there be another Aileen in class?
On our rarity read — which blends how common Aileen is today with its five-year momentum — the name reads as "rare". A high score means genuine rarity — your Aileen will likely be the only one in the room, with the occasional spelling-out as the price.
Where Aileen is most common
Geography matters for names, and Aileen is no exception. Adjusted for how many girls are born in each state, Aileen is most common in CA (0.5 per 1,000), TX (0.5 per 1,000), AZ (0.4 per 1,000), IL (0.3 per 1,000), NY (0.2 per 1,000) — against a national average of about 0.3 per 1,000 girls. These are per-capita rates, so they show where Aileen is a genuine regional favorite rather than just where the most babies are born.
Names like Aileen
Statistically, parents drawn to Aileen tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Ayleen, Kayleen, Jayleen, Arden, and Heaven.
AyleenKayleenJayleenArdenHeavenAshlynnAshlynCamden
Rank history (last 25 years)
| Year | Babies named Aileen | Rank |
|---|---|---|
| 2025 | 340 | #799 |
| 2024 | 391 | #720 |
| 2023 | 352 | #799 |
| 2022 | 407 | #720 |
| 2021 | 429 | #678 |
| 2020 | 404 | #696 |
| 2019 | 452 | #643 |
| 2018 | 437 | #671 |
| 2017 | 456 | #648 |
| 2016 | 500 | #602 |
| 2015 | 609 | #514 |
| 2014 | 541 | #567 |
| 2013 | 479 | #593 |
| 2012 | 603 | #506 |
| 2011 | 633 | #467 |
| 2010 | 645 | #468 |
| 2009 | 685 | #454 |
| 2008 | 650 | #486 |
| 2007 | 645 | #501 |
| 2006 | 558 | #537 |
| 2005 | 633 | #483 |
| 2004 | 568 | #510 |
| 2003 | 526 | #536 |
| 2002 | 505 | #546 |
| 2001 | 550 | #501 |
Frequently asked questions
Is Aileen a popular girl name?
Aileen ranked #799 among girls in 2025 with 340 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #514.
When was the name Aileen most popular?
Aileen peaked in 2009, when 685 American girls received the name (ranked #454 that year). Since 2009 the name has declined from that high.
How rare is the name Aileen?
In 2025, roughly 1 in 5,294 newborn American girls was named Aileen. On our rarity scale (rarity blended with momentum) we classify it as "rare".
Data source: U.S. Social Security Administration name statistics, 1880–2025, national and state files. Counts reflect Social Security card applications; names with fewer than 5 occurrences in a state-year are suppressed by the SSA.