Kaileen
Girl name · #4304 in 2025 · Very rare
How old is the name Kaileen? In official American birth records, Kaileen has been tracked continuously since 1976, giving it 49 years of documented American history.
In 2025, 33 baby girls were named Kaileen, placing it at #4304 in the official national rankings. A decade ago it stood at #9481, so the name has been rising over the past ten years. Roughly one in every 54,545 girls born in 2025 was named Kaileen.
Babies named Kaileen per year. Source: Official national birth records.
The 49-year story
Kaileen first appears in the Social Security records in 1976, when 10 girls received the name. Its all-time peak is essentially right now: 2022, with 83 babies and a rank of #2253. Names at their peak can keep climbing — or be one trend cycle from the long slide that eventually hits most popular names. 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.
Unlock the 5-year forecast and compare Kaileen against up to 5 other names.
Uniqueness: will there be another Kaileen in class?
On our rarity read — which blends how common Kaileen is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Kaileen will likely be the only one in the room, with the occasional spelling-out as the price.
Where Kaileen is most common
State-level data for Kaileen is too sparse in 2025 to rank by rate — in most states its count falls below the SSA's per-state reporting threshold (counts under 5 are withheld).
Names like Kaileen
Statistically, parents drawn to Kaileen tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Rayleen, Mehreen, Haneen, Kayleen, and Lareen.
RayleenMehreenHaneenKayleenLareenTaleenAleenHalen
Rank history (last 25 years)
| Year | Babies named Kaileen | Rank |
|---|---|---|
| 2025 | 33 | #4265 |
| 2024 | 26 | #5021 |
| 2023 | 54 | #3047 |
| 2022 | 83 | #2253 |
| 2021 | 46 | #3390 |
| 2020 | 8 | #11090 |
| 2019 | 6 | #13799 |
| 2018 | 9 | #10545 |
| 2017 | 10 | #9943 |
| 2016 | 8 | #11781 |
| 2015 | 11 | #9481 |
| 2014 | 22 | #5797 |
| 2013 | 17 | #7031 |
| 2012 | 13 | #8632 |
| 2011 | 26 | #5207 |
| 2010 | 20 | #6382 |
| 2009 | 19 | #6811 |
| 2008 | 26 | #5434 |
| 2007 | 16 | #7733 |
| 2006 | 23 | #5709 |
| 2005 | 24 | #5266 |
| 2004 | 26 | #4949 |
| 2003 | 18 | #6299 |
| 2002 | 15 | #7045 |
| 2001 | 13 | #7724 |
Frequently asked questions
How old is the name Kaileen?
In official American birth records, the name Kaileen first appeared in 1976 (over 49 years ago), when 10 newborn girls received the name. It has been tracked in modern national records for 49 years.
Is Kaileen a popular girl name?
Kaileen ranked #4304 among girls in 2025 with 33 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #9481.
When was the name Kaileen most popular?
Kaileen peaked in 2022, when 83 American girls received the name (ranked #2253 that year). That peak is current — the name is at or near its all-time high right now.
How rare is the name Kaileen?
In 2025, roughly 1 in 54,545 newborn American girls was named Kaileen. On our rarity scale (rarity blended with momentum) we classify it as "very rare".
Data source: Official American birth records, 1880–2025, national and state files. Counts reflect registered birth records for American families.