Kailynn
Girl name · #2347 in 2025 · Very rare
How old is the name Kailynn? In official American birth records, Kailynn has been tracked continuously since 1985, giving it 40 years of documented American history.
In 2025, 78 baby girls were named Kailynn, placing it at #2347 in the official national rankings. A decade ago it stood at #1126, so the name has been falling over the past ten years. Roughly one in every 23,077 girls born in 2025 was named Kailynn.
The 40-year story
Kailynn first appears in the Social Security records in 1985, when 7 girls received the name. Its peak came in 2011, when 290 girls were named Kailynn — good for #898 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 Kailynn per year. Source: Official national birth records.
Unlock the 5-year forecast and compare Kailynn against up to 5 other names.
Uniqueness: will there be another Kailynn in class?
On our rarity read — which blends how common Kailynn is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Kailynn will likely be the only one in the room, with the occasional spelling-out as the price.
Where Kailynn is most common
State-level data for Kailynn 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 Kailynn
Statistically, parents drawn to Kailynn tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Kaelynn, Kaylynn, Jaslynn, Jaylynn, and Jocelynn.
KaelynnKaylynnJaslynnJaylynnJocelynnJaelynnJordynnAislynn
Rank history (last 25 years)
| Year | Babies named Kailynn | Rank |
|---|---|---|
| 2025 | 78 | #2326 |
| 2024 | 95 | #2040 |
| 2023 | 101 | #1946 |
| 2022 | 105 | #1907 |
| 2021 | 122 | #1698 |
| 2020 | 129 | #1616 |
| 2019 | 122 | #1708 |
| 2018 | 154 | #1435 |
| 2017 | 159 | #1432 |
| 2016 | 184 | #1300 |
| 2015 | 226 | #1126 |
| 2014 | 258 | #1011 |
| 2013 | 235 | #1056 |
| 2012 | 271 | #942 |
| 2011 | 290 | #898 |
| 2010 | 230 | #1082 |
| 2009 | 247 | #1048 |
| 2008 | 226 | #1137 |
| 2007 | 209 | #1203 |
| 2006 | 150 | #1473 |
| 2005 | 132 | #1547 |
| 2004 | 125 | #1573 |
| 2003 | 113 | #1687 |
| 2002 | 98 | #1821 |
| 2001 | 89 | #1941 |
Frequently asked questions
How old is the name Kailynn?
In official American birth records, the name Kailynn first appeared in 1985 (over 40 years ago), when 7 newborn girls received the name. It has been tracked in modern national records for 40 years.
Is Kailynn a popular girl name?
Kailynn ranked #2347 among girls in 2025 with 78 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #1126.
When was the name Kailynn most popular?
Kailynn peaked in 2011, when 290 American girls received the name (ranked #898 that year). Since 2011 the name has declined from that high.
How rare is the name Kailynn?
In 2025, roughly 1 in 23,077 newborn American girls was named Kailynn. 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.