Harlyn
Girl name · #2150 in 2025 · Very rare
How old is the name Harlyn? In official American birth records, Harlyn has been tracked continuously since 2005, giving it 20 years of documented American history.
Harlyn is currently the #2150 girl name in the United States — 87 babies received it in 2025. A decade ago it stood at #2408, so the name has been rising over the past ten years. Roughly one in every 20,690 girls born in 2025 was named Harlyn.
The 20-year story
Harlyn first appears in the Social Security records in 2005, when 7 girls received the name. Its peak came in 2017, when 221 girls were named Harlyn — good for #1128 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 Harlyn per year. Source: Official national birth records.
Unlock the 5-year forecast and compare Harlyn against up to 5 other names.
Uniqueness: will there be another Harlyn in class?
On our rarity read — which blends how common Harlyn is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Harlyn will likely be the only one in the room, with the occasional spelling-out as the price.
Where Harlyn is most common
State-level data for Harlyn 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 Harlyn
Statistically, parents drawn to Harlyn tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Weslyn, Hollyn, Blakelyn, Haelyn, and Avalyn.
WeslynHollynBlakelynHaelynAvalynAddalynEverlynHarlynn
Rank history (last 25 years)
| Year | Babies named Harlyn | Rank |
|---|---|---|
| 2025 | 87 | #2139 |
| 2024 | 160 | #1398 |
| 2023 | 163 | #1377 |
| 2022 | 134 | #1583 |
| 2021 | 119 | #1730 |
| 2020 | 127 | #1632 |
| 2019 | 131 | #1614 |
| 2018 | 187 | #1243 |
| 2017 | 221 | #1128 |
| 2016 | 203 | #1214 |
| 2015 | 76 | #2408 |
| 2014 | 42 | #3652 |
| 2013 | 44 | #3513 |
| 2012 | 36 | #4121 |
| 2011 | 34 | #4244 |
| 2010 | 21 | #6182 |
| 2009 | 24 | #5709 |
| 2008 | 20 | #6559 |
| 2007 | 7 | #13924 |
| 2005 | 7 | #13010 |
Frequently asked questions
How old is the name Harlyn?
In official American birth records, the name Harlyn first appeared in 2005 (over 20 years ago), when 7 newborn girls received the name. It has been tracked in modern national records for 20 years.
Is Harlyn a popular girl name?
Harlyn ranked #2150 among girls in 2025 with 87 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #2408.
When was the name Harlyn most popular?
Harlyn peaked in 2017, when 221 American girls received the name (ranked #1128 that year). Since 2017 the name has declined from that high.
How rare is the name Harlyn?
In 2025, roughly 1 in 20,690 newborn American girls was named Harlyn. 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.