Katelynn
Girl name · #2737 in 2025 · Very rare
How old is the name Katelynn? In official American birth records, Katelynn has been tracked continuously since 1979, giving it 46 years of documented American history.
In 2025, 63 baby girls were named Katelynn, placing it at #2737 in the official national rankings. A decade ago it stood at #652, so the name has been falling over the past ten years. Roughly one in every 28,571 girls born in 2025 was named Katelynn.
The 46-year story
Katelynn first appears in the Social Security records in 1979, when 5 girls received the name. Its peak came in 1998, when 1,457 girls were named Katelynn — good for #210 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 Katelynn per year. Source: Official national birth records.
Unlock the 5-year forecast and compare Katelynn against up to 5 other names.
Uniqueness: will there be another Katelynn in class?
On our rarity read — which blends how common Katelynn is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Katelynn will likely be the only one in the room, with the occasional spelling-out as the price.
Where Katelynn is most common
State-level data for Katelynn 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 Katelynn
Statistically, parents drawn to Katelynn tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Kaitlynn, Kaylynn, Kaylyn, Jacklynn, and Caitlyn.
KaitlynnKaylynnKaylynJacklynnCaitlynKierstenKameronKaleigh
Rank history (last 25 years)
| Year | Babies named Katelynn | Rank |
|---|---|---|
| 2025 | 63 | #2719 |
| 2024 | 81 | #2282 |
| 2023 | 70 | #2517 |
| 2022 | 71 | #2510 |
| 2021 | 102 | #1926 |
| 2020 | 146 | #1468 |
| 2019 | 182 | #1274 |
| 2018 | 188 | #1237 |
| 2017 | 188 | #1257 |
| 2016 | 249 | #1049 |
| 2015 | 441 | #652 |
| 2014 | 542 | #566 |
| 2013 | 619 | #487 |
| 2012 | 737 | #427 |
| 2011 | 839 | #380 |
| 2010 | 1,028 | #312 |
| 2009 | 1,031 | #317 |
| 2008 | 1,138 | #293 |
| 2007 | 1,206 | #283 |
| 2006 | 1,217 | #271 |
| 2005 | 1,113 | #294 |
| 2004 | 1,269 | #255 |
| 2003 | 1,273 | #257 |
| 2002 | 1,271 | #250 |
| 2001 | 1,293 | #248 |
Frequently asked questions
How old is the name Katelynn?
In official American birth records, the name Katelynn first appeared in 1979 (over 46 years ago), when 5 newborn girls received the name. It has been tracked in modern national records for 46 years.
Is Katelynn a popular girl name?
Katelynn ranked #2737 among girls in 2025 with 63 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #652.
When was the name Katelynn most popular?
Katelynn peaked in 1998, when 1,457 American girls received the name (ranked #210 that year). Since 1998 the name has declined from that high.
How rare is the name Katelynn?
In 2025, roughly 1 in 28,571 newborn American girls was named Katelynn. 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.