Reilly
Girl name · #2844 in 2025 · Very rare
Reilly is currently the #2844 girl name in the United States — 60 babies received it in 2025. A decade ago it stood at #2123, so the name has been falling over the past ten years. Roughly one in every 30,000 girls born in 2025 was named Reilly.
Babies named Reilly per year. Source: SSA.
The 47-year story
Reilly first appears in the Social Security records in 1978, when 6 girls received the name. Its peak came in 1998, when 379 girls were named Reilly — good for #623 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.
Unlock the 5-year forecast and compare Reilly against up to 5 other names.
Uniqueness: will there be another Reilly in class?
On our rarity read — which blends how common Reilly is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Reilly will likely be the only one in the room, with the occasional spelling-out as the price.
Where Reilly is most common
State-level data for Reilly 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 Reilly
Statistically, parents drawn to Reilly tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Emilly, Ally, Keely, Kayley, and Magaly.
EmillyAllyKeelyKayleyMagalyCarleySidneyRayven
Rank history (last 25 years)
| Year | Babies named Reilly | Rank |
|---|---|---|
| 2025 | 60 | #2822 |
| 2024 | 64 | #2694 |
| 2023 | 50 | #3225 |
| 2022 | 65 | #2661 |
| 2021 | 65 | #2638 |
| 2020 | 81 | #2216 |
| 2019 | 81 | #2249 |
| 2018 | 72 | #2457 |
| 2017 | 75 | #2401 |
| 2016 | 99 | #1996 |
| 2015 | 90 | #2123 |
| 2014 | 89 | #2139 |
| 2013 | 103 | #1929 |
| 2012 | 108 | #1859 |
| 2011 | 140 | #1564 |
| 2010 | 139 | #1574 |
| 2009 | 163 | #1432 |
| 2008 | 193 | #1286 |
| 2007 | 199 | #1244 |
| 2006 | 178 | #1314 |
| 2005 | 241 | #1011 |
| 2004 | 268 | #903 |
| 2003 | 276 | #869 |
| 2002 | 305 | #775 |
| 2001 | 325 | #737 |
Frequently asked questions
Is Reilly a popular girl name?
Reilly ranked #2844 among girls in 2025 with 60 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #2123.
When was the name Reilly most popular?
Reilly peaked in 1998, when 379 American girls received the name (ranked #623 that year). Since 1998 the name has declined from that high.
How rare is the name Reilly?
In 2025, roughly 1 in 30,000 newborn American girls was named Reilly. On our rarity scale (rarity blended with momentum) we classify it as "very rare".
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.