Kacelyn
Girl name · #3825 in 2025 · Very rare
How old is the name Kacelyn? In official American birth records, Kacelyn has been tracked continuously since 2001, giving it 24 years of documented American history.
In 2025, 39 baby girls were named Kacelyn, placing it at #3825 in the official national rankings. That compares with #7613 ten years earlier — a clear climb in the rankings. Roughly one in every 46,154 girls born in 2025 was named Kacelyn.
Babies named Kacelyn per year. Source: Official national birth records.
The 24-year story
Kacelyn first appears in the Social Security records in 2001, when 7 girls received the name. Its all-time peak is essentially right now: 2025, with 39 babies and a rank of #3780. 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 Kacelyn against up to 5 other names.
Uniqueness: will there be another Kacelyn in class?
On our rarity read — which blends how common Kacelyn is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Kacelyn will likely be the only one in the room, with the occasional spelling-out as the price.
Where Kacelyn is most common
State-level data for Kacelyn 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 Kacelyn
Statistically, parents drawn to Kacelyn tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Laiklyn, Kaislyn, Edelyn, Emerlyn, and Callyn.
LaiklynKaislynEdelynEmerlynCallynEilynLovelynLailyn
Rank history (last 25 years)
| Year | Babies named Kacelyn | Rank |
|---|---|---|
| 2025 | 39 | #3780 |
| 2024 | 15 | #7251 |
| 2023 | 16 | #6922 |
| 2022 | 15 | #7281 |
| 2021 | 15 | #7250 |
| 2020 | 14 | #7559 |
| 2019 | 14 | #7716 |
| 2018 | 8 | #11427 |
| 2017 | 13 | #8299 |
| 2015 | 15 | #7613 |
| 2014 | 16 | #7302 |
| 2013 | 11 | #9612 |
| 2012 | 12 | #9109 |
| 2011 | 7 | #13347 |
| 2010 | 6 | #14959 |
| 2009 | 7 | #13704 |
| 2008 | 5 | #17504 |
| 2005 | 8 | #11834 |
| 2004 | 5 | #16099 |
| 2003 | 6 | #13844 |
| 2001 | 7 | #12056 |
Frequently asked questions
How old is the name Kacelyn?
In official American birth records, the name Kacelyn first appeared in 2001 (over 24 years ago), when 7 newborn girls received the name. It has been tracked in modern national records for 24 years.
Is Kacelyn a popular girl name?
Kacelyn ranked #3825 among girls in 2025 with 39 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #7613.
When was the name Kacelyn most popular?
Kacelyn peaked in 2025, when 39 American girls received the name (ranked #3780 that year). That peak is current — the name is at or near its all-time high right now.
How rare is the name Kacelyn?
In 2025, roughly 1 in 46,154 newborn American girls was named Kacelyn. 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.