Kaily
Girl name · #4118 in 2025 · Very rare
How old is the name Kaily? In official American birth records, Kaily has been tracked continuously since 1983, giving it 42 years of documented American history.
In 2025, 35 baby girls were named Kaily, placing it at #4118 in the official national rankings. A decade ago it stood at #2590, so the name has been falling over the past ten years. Roughly one in every 51,429 girls born in 2025 was named Kaily.
The 42-year story
Kaily first appears in the Social Security records in 1983, when 7 girls received the name. Its peak came in 2010, when 126 girls were named Kaily — good for #1678 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 Kaily per year. Source: Official national birth records.
Unlock the 5-year forecast and compare Kaily against up to 5 other names.
Uniqueness: will there be another Kaily in class?
On our rarity read — which blends how common Kaily is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Kaily will likely be the only one in the room, with the occasional spelling-out as the price.
Where Kaily is most common
State-level data for Kaily 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 Kaily
Statistically, parents drawn to Kaily tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Heily, Maily, Sicily, Marly, and Analy.
HeilyMailySicilyMarlyAnalyKinseyMarielySheily
Rank history (last 25 years)
| Year | Babies named Kaily | Rank |
|---|---|---|
| 2025 | 35 | #4067 |
| 2024 | 52 | #3081 |
| 2023 | 37 | #3984 |
| 2022 | 45 | #3470 |
| 2021 | 43 | #3553 |
| 2020 | 55 | #2931 |
| 2019 | 57 | #2891 |
| 2018 | 72 | #2457 |
| 2017 | 69 | #2546 |
| 2016 | 68 | #2594 |
| 2015 | 69 | #2590 |
| 2014 | 92 | #2096 |
| 2013 | 83 | #2236 |
| 2012 | 108 | #1859 |
| 2011 | 100 | #1968 |
| 2010 | 126 | #1678 |
| 2009 | 111 | #1889 |
| 2008 | 107 | #1966 |
| 2007 | 82 | #2328 |
| 2006 | 82 | #2308 |
| 2005 | 97 | #1969 |
| 2004 | 79 | #2229 |
| 2003 | 80 | #2167 |
| 2002 | 78 | #2142 |
| 2001 | 73 | #2211 |
Frequently asked questions
How old is the name Kaily?
In official American birth records, the name Kaily first appeared in 1983 (over 42 years ago), when 7 newborn girls received the name. It has been tracked in modern national records for 42 years.
Is Kaily a popular girl name?
Kaily ranked #4118 among girls in 2025 with 35 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #2590.
When was the name Kaily most popular?
Kaily peaked in 2010, when 126 American girls received the name (ranked #1678 that year). Since 2010 the name has declined from that high.
How rare is the name Kaily?
In 2025, roughly 1 in 51,429 newborn American girls was named Kaily. 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.