Erin
Girl name · #833 in 2025 · Rare
How old is the name Erin? In official American birth records, Erin has been tracked continuously since 1888, giving it 137 years of documented American history.
In 2025, 327 baby girls were named Erin, placing it at #833 in the official national rankings. A decade ago it stood at #335, so the name has been falling over the past ten years. Roughly one in every 5,505 girls born in 2025 was named Erin.
The 137-year story
Erin first appears in the Social Security records in 1888, when 5 girls received the name. Its peak came in 1983, when 14,836 girls were named Erin — good for #18 that year. Today's parents encounter it as a name from their grandparents’ generation, which is precisely the vintage window from which names get revived. 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 Erin per year. Source: Official national birth records.
Unlock the 5-year forecast and compare Erin against up to 5 other names.
Uniqueness: will there be another Erin in class?
On our rarity read — which blends how common Erin is today with its five-year momentum — the name reads as "rare". A high score means genuine rarity — your Erin will likely be the only one in the room, with the occasional spelling-out as the price.
Where Erin is most common
Geography matters for names, and Erin is no exception. Adjusted for how many girls are born in each state, Erin is most common in NJ (0.5 per 1,000), NY (0.3 per 1,000), GA (0.3 per 1,000), NC (0.3 per 1,000), IL (0.3 per 1,000) — against a national average of about 0.3 per 1,000 girls. These are per-capita rates, so they show where Erin is a genuine regional favorite rather than just where the most babies are born.
Names like Erin
Statistically, parents drawn to Erin tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Erica, Erika, Jamie, Megan, and Cara.
EricaErikaJamieMeganCaraAlisonKaraKatie
Rank history (last 25 years)
| Year | Babies named Erin | Rank |
|---|---|---|
| 2025 | 327 | #833 |
| 2024 | 352 | #798 |
| 2023 | 451 | #651 |
| 2022 | 427 | #686 |
| 2021 | 527 | #575 |
| 2020 | 581 | #521 |
| 2019 | 650 | #485 |
| 2018 | 743 | #417 |
| 2017 | 777 | #408 |
| 2016 | 925 | #355 |
| 2015 | 974 | #335 |
| 2014 | 1,022 | #324 |
| 2013 | 1,168 | #275 |
| 2012 | 1,235 | #263 |
| 2011 | 1,350 | #234 |
| 2010 | 1,441 | #216 |
| 2009 | 1,696 | #194 |
| 2008 | 2,064 | #164 |
| 2007 | 2,477 | #141 |
| 2006 | 2,644 | #131 |
| 2005 | 2,908 | #112 |
| 2004 | 3,367 | #95 |
| 2003 | 3,926 | #80 |
| 2002 | 4,145 | #72 |
| 2001 | 4,958 | #60 |
Frequently asked questions
How old is the name Erin?
In official American birth records, the name Erin first appeared in 1888 (over 137 years ago), when 5 newborn girls received the name. It has over a century of continuous American history.
Is Erin a popular girl name?
Erin ranked #833 among girls in 2025 with 327 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #335.
When was the name Erin most popular?
Erin peaked in 1983, when 14,836 American girls received the name (ranked #18 that year). Since 1983 the name has declined from that high.
How rare is the name Erin?
In 2025, roughly 1 in 5,505 newborn American girls was named Erin. On our rarity scale (rarity blended with momentum) we classify it as "rare".
Data source: Official American birth records, 1880–2025, national and state files. Counts reflect registered birth records for American families.