Eilyn
Girl name · #4629 in 2025 · Uniqueness 48/100
In 2025, 30 baby girls were named Eilyn, placing it at #4629 in the official national rankings. A decade ago it stood at #8447, so the name has been rising over the past ten years. Roughly one in every 60,000 girls born in 2025 was named Eilyn.
Babies named Eilyn per year, 1880–2025. Source: SSA.
The 24-year story
Eilyn first appears in the Social Security records in 2001, when 5 girls received the name. Its all-time peak is essentially right now: 2025, with 30 babies and a rank of #4546. 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 Eilyn against up to 5 other names.
Uniqueness: will there be another Eilyn in class?
Eilyn scores 48 out of 100 on our uniqueness scale, which blends current rarity with five-year momentum — putting it in the "distinctive" band. That middle band is the sweet spot many parents hunt for: recognizable without being everywhere.
Where Eilyn is most common
State-level data for Eilyn is sparse in 2025 — the name's footprint is too small for most states to report (the SSA suppresses counts under 5 per state for privacy).
Names like Eilyn
Statistically, parents drawn to Eilyn tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Edelyn, Emerlyn, Callyn, Lailyn, and Kacelyn.
EdelynEmerlynCallynLailynKacelynMailynLaiklynEmmelyn
Rank history (last 25 years)
| Year | Babies named Eilyn | Rank |
|---|---|---|
| 2025 | 30 | #4546 |
| 2024 | 28 | #4772 |
| 2023 | 22 | #5549 |
| 2022 | 15 | #7281 |
| 2021 | 11 | #8978 |
| 2020 | 12 | #8406 |
| 2019 | 12 | #8597 |
| 2018 | 14 | #7762 |
| 2017 | 11 | #9341 |
| 2016 | 17 | #6901 |
| 2015 | 13 | #8447 |
| 2014 | 13 | #8485 |
| 2013 | 8 | #11969 |
| 2012 | 14 | #8208 |
| 2011 | 8 | #12153 |
| 2010 | 7 | #13448 |
| 2009 | 7 | #13704 |
| 2008 | 7 | #13832 |
| 2007 | 13 | #9007 |
| 2006 | 7 | #13606 |
| 2003 | 11 | #9048 |
| 2001 | 5 | #15352 |
Frequently asked questions
Is Eilyn a popular girl name?
Eilyn ranked #4629 among girls in 2025 with 30 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #8447.
When was the name Eilyn most popular?
Eilyn peaked in 2025, when 30 American girls received the name (ranked #4546 that year). That peak is current — the name is at or near its all-time high right now.
How rare is the name Eilyn?
In 2025, roughly 1 in 60,000 newborn American girls was named Eilyn. It scores 48/100 on our uniqueness scale (rarity blended with momentum), which we classify as "distinctive".
Data source: U.S. Social Security Administration name statistics, 1880–2025, national and state files. Counts reflect Social Security card applications; names with fewer than 5 occurrences in a state-year are suppressed by the SSA.